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June 2, 2005
condensed version of the best test for H.pylori

Last saturday I wrote a long entry on the best non-invasive test for H.pylori infection in the office.  Since it was lossed in cyberspace I will cut to the chase.  There was some controversy in my clinic over what was the best test for H.pylori in the office setting.  The preceptor felt that the IgA serum atibody test for H.pylori was as sensitive test for the bacteria.  However, three months after being cured of H.pylori the test can be falsely positive due to the remaining antibodies.  I looked at the different non-invasive tests for H.pylori, evaluating for sensitivity and specificity, along with price, and found that urea breath testing 13C (non-radioactive) is as inexpensive as other tests, as sensitive as the serum test, and more specific.  The only drawback is that you have to wait three weeks after treatment for the infection before you use the urea breath test to check for erradication, otherwise it will show a false positive.

It was interesting to do the research because there were so many conflicting opinions.  Uptodate recommends using the serum test for initial diagnosis, however it also recommends using a different method to confirm a positive test in a patient with a low pretest probability.  In addition, the article cites a European Panel article's recommendations of the best test for follow up, being the urea breath test or the stool antigen test.  Pubmed did not have the article, however I recommend going to Uptodate to clink on to the link with the abstract that has a clear outline of recommendations for diagnositic testing.

In evaluating long-term follow up in patients treated for H.pylori with a history of ulcers I found an article that recommended endoscopy, even though the urea breath test was shown to be sensitive and specific in diagnosing the infection.  They felt that endoscopy is useful to also asses for changes in the gastric mucosa that are potentially pathological http://www.pubmedcentral.gov/articlerender.fcgi?tool=pmcentrez&rendertype=abstract&artid=529255.

May 30, 2005
treatment of acute bronchitis

As I'm sure is the case with a lot of you out there, I am seeing a ton of patients come into the office with URIs and bronchitis. Differentiating a common URI from bronchitis can be difficult, and is based mainly on clinical symptoms. Most patients with bronchitis will present with cough, usually with some sputum production, dyspnea, chest discomfort, malaise, and rales and ronchi on clinical exam.

In my experience in the office, once the word bronchitis was spoken, the patient seemed to expect to be put on an antibiotic. The article that I found on the AAFP website, however, said that because most cases of acute bronchitis are viral, more symptomatic treatment with protussives, antitussives and bronchodilators were the best course of treatment.  

My preceptor likes to make a point to tell the patients about this research and that antibiotics would probably not make them any better. Now, the patients at the office I am at just love their doctor, so most of them said "I'll do whatever you say doctor." There are some, though, that have a hard time accepting this fact.

This article is a really good review of acute bronchitis and also has a good section on treatment alternatives. Hope you enjoy it and hope your patients begin to understand about viral bronchitis.

http://www.aafp.org/afp/20020515/2039.html


OTC relief of the common cold
One of the differences I've noticed between my FP group and my outpt Peds experience was the difference between txt of URI's.  The ped docs recommended saline nasal sprays and salt water gargles for symptomatic relief, where the FP practice that I'm in hand out scripts for Triaminic, PediaCare and Delsym to all comers, with or without instructions on use.

Up-to-date has a good review on the efficacy of OTC and a few common herbal remedies (The common cold in adults, The common cold in children).  They reference one systematic review of the effect of pseudoephedrine in the common cold, which shows relief of cold sx only for the first dose of decongestant in adults, and there seems to be no support for cough suppressants over placebo.  However, there is significant room for harm when children are given inappropriate doses or chronic treatment of OTC remedies.

So I have to conclude that the pediatric doctors have the leg up on the FP docs on this subject, and I'll plan on wincing every time a script is written for Pediacare in my presence.

May 29, 2005
Gingko biloba for Acute Mountain Sickness anyone?

The prevention of Acute Mountain Sickness (AMS) may seem to be an odd topic but the summer travel season is upon us and people are being more adventurous these days.  Not that anyone I know is going trekking to the Himalayas anytime soon, but I have had family members visit Machu Picchu in South America (altitude 8,000 ft) and I have a patient that is going to visit Aspen, CO ( altitude 7,930 ft) later this summer.  Said patient came into the office requesting Diamox (acetazolamide) for a trip that she and her husband were taking to Aspen.  They were concerned with AMS because they had never been at this altitude and they are relatively on in years.  (Very spry senior citizens)   A friend had suggested that they bring Diamox along to help them prevent AMS.  Since the patient is relatively healthy but is on other medications my preceptor suggested that they use Gingko biloba instead. (Acetazolamide can interact with many other drugs such as ARB's, ACE inhibitors, antiarrhythmics, beta 2 agonists, HCTZ etc...) I had never heard of the use of Gingko for AMS and so I looked it up.

Acute mountain sickness/ High altitude illness usually occurs at elevations greater than 8,000 feet and is secondary to the body's physiological failure to adapt to acute hypobaric hypoxia.  AMS affects the lungs, heart, nervous system, and muscles.  About 20% of people will develop mild symptoms between 6300-9700 ft.  Symptoms include headache, N/V, fatigue, dizziness, shortness of breath on exertion, rapid pulse, and difficulty sleeping, to name a few.  In severe cases one can develop pulmonary edema, cerebral edema, and death. The chance of developing AMS and its severity are increased by your rate of ascent, altitude, and level of exertion.  Medline plus had a quick overview on Acute Mountain Sickness and  AAFP had a nice patient handout on the topic.

The best treatment for AMS is to descend to a lower elevation where the symptoms subside.   The prevention of AMS has been studied in the past and to my surprise I actually found a current study in the British Medical Journal that compared placebo vs. gingko biloba vs acetazolamide for prevention of AMS in Himalyan .trekkers.  The study was a randomized control trial on 614 western trekkers, of which 487 completed the trial.  The study found that gingko biloba was as ineffective as placebo in preventing AMS but that acetalzolamide was quite effective at 250 mg twice a day.  Occurence of AMS was 34% in the placebo group, 35% for Gingko, 12% for acetalzolamide, and 14% for acetalzolamide/gingko combo.  Severe sickness only occurred in 3% of the acetalzolamide group vs 18% in the placebo or the gingko group. 

In light of this study, I wish we had advised our patient to begin taking acetalzolamide 3 days prior to leaving for Aspen but to monitor for side effects of hypokalemia given their other medications, instead of advising them on taking gingko biloba.  Of course we did recommend resting for a few days in Aspen in order to get acclimated before they took any hikes to higher altitudes.     


Anxiety- a common CC

   Anxiety has been a very common chief compaint in the office; I have seen about 5-10 patients per week who are being seen for anxiety alone.  Generally, anxiety accounts for about 15% of all visits to a primary care physician. 

   Generalized anxiety disorder, occuring in 2- 3% of the general population, is characterized by persistent, chronic anxiety, but without the specific symptoms of phobic, panic, and OCDs.  While anxiety is a normal response to many stressful situations, it becomes pathological when it occurs in the absence of appropriate stimulus or is of excessive duration and intensity.  So to provide a review for evaluation of the anxiety patient, here's some important points to remember...

   When taking the history, remember to ask about stressors, fears, substance abuse, medication history, and precipitating factors.  Physical symptoms typically are related to increased automatic activity, including dyspnea, dizziness, palpitations, sweating, naseau, abdominal pain, diarrhea, frequent urination, sweaty palms, and difficulty swallowing  Patients may also complain of increased motor symptoms, including trembling, twitching, and muscle spasms.

   Physical exam is important to rule out underlying organic causes for these symptoms, but it is often normal in those patients presenting to the primary care physician for concerns of anxiety alone.  Some underlying medical conditions which may mimic anxiety symptoms are cardiopulmonary disorders (eg. arrhythmias, hypoxia, asthma, etc.), neurological (eg. encephalopathies, sleep disorders, post- concussion, etc.), endocrine (eg. hyperthyroid, hypogycemia. hyper- and hypo- calcemia, etc.), stimulant toxicity (eg. withdrawal), and blood disorders (eg. anemia).

   Therefore, when considering the differential diagnosis, it is important to also remember the wide range of medications which can produce anxiety symptoms, in addition to any existing underlying medical conditions.  Examples include: sympathomimetics, antihistamines, bromocriptine, bronchodilators, neuroleptics, SSRIs, cocaine, amphetamines, and excessive caffeine.

   Diagnosis is based on clinical findings, and may not require lab testing unless the physician is trying to rule out other medical conditions.

   Treatment includes psychotherapy and medications, commonly benzodiazapines.  Benzos are beneficial since they provide immediate relief.  SSRIs are also first line therapy, but they may take a few weeks to become effective.    TCAs and beta- blockers may also be beneficial to these patients.

  For a a great review article about Anxiety disorder, here's an article from the NEJM.

  For a more patient- friendly fact sheet about anxiety disorders, see this article from FamilyDoctor.org.


To treat or not to treat?

Foot care is an important aspect of diabetes health maintenance.  During this rotation, I encountered a few patients with foot fungal nail infection.  Usually these patients are referred to a podiatrist for foot care.  However, some of these patients do not have the time or their insurance does not cover foot care, so they wondered if it is something they really need to treat.

Therapy can be divided into topical, oral, and surgical therapy.  Topical agents such as ciclopirox olamine can be painted on the infected nail, however it is not effective in serious cases where the infection has penetrate into the nail.  Oral agents such as griseofulvin and ketoconazole must be use as adjunctive therapy in serious cases, however they have many adverse effects, require close lab monitoring and prolong treatment.  Newer agents such as itraconazole and terbinafine have shorter time of treatment and few side effects, but rate of relapse is high.  Surgical removal of the infected nail is effective especially when used in conjunction with oral therapy. 

Onychomycosis or fungal nail infection is condition that can infect anyone, however older people with diabetes are more susceptible.  While onychomycosis is not a life threatening condition, it can cause infection of the adjacent skin which can lead to serious infection such as cellulites and osteomyelitis.  The decision to treat onychomycosis must be base on individual risk factor of infection, balance with the cost of prolonged medication use and side-effects. 


ASA/caffeine pill better than coffee+asa?

A 60+ y.o. woman with chronic back pain and sciatica came into the office stating that she had found a wonder drug and it was over the counter, too!  Her friend told her to take Bayer Extra Strength for Back & Body Pain (500 mg asa + 32.5 caffeine).  Since she started taking this (2 tabs q6 hours), she hadn't needed her Celebrex or her aspirin, neither of which helped her sciatica anyway.  She didn't even drink her daily 2 cups of coffee any more because she felt great.  She had little/no back or sciatica pain anymore and was much more active these days.

We couldn't figure out why the OTC worked out better than the coffee & asa, so I spent some quality time with ovid trying to find out what was going on.  One article stated that subjects who ingested a large dose of caffeine reported less leg muscle pain during moderate intensity cycling exercise.  It postulated that the caffeine improved endurance exercise performance due to it's hypoalgesic properties. 

Another article found that caffeine increased systolic and diastolic bp's, made people feel more clearheaded and energetic (surprise), and produced higher pain threshold and pain tolerance levels compaired to placebos.  One interesting point was that the systolic and pain effects were stronger in women.

My doctor and I wondered whether this patient's success had to do with the fact that the caffeine in the asa potentiated the analgesic effects, helping the asa to kick in faster and possible more effectively.  Previously, she may have taken the aspirin and coffee at different times or she may have taken less aspirin throughout the day.  Whatever the case, we were excited for her relief of pain, but we're now keeping an eye on her bp. 


Smoking and sinusitis

There's nothing that gets my preceptor more riled up than endless stream of smokers that come through the office for complaints of sinusitis and are unable to make the connection between their smoking and these repeated infections.  We had one women the other day smoked a pack a day for 20 years and this was her third episode of sinusitis since the fall. My doc went through the whole smoking bit and how this was affecting her health and just to be thorough mentioned to her other possible causes such as allergies (she had a new dog). Well, she wouldn't let this go, and was SURE that it must be the dog, after all she's smoked for years. HELLO??!!? Let's investigate the Marlboro man before we throw Fido into the pound.

Anyway, it realy is a pretty basic expalnation as to why smokers are at risk for sinusiits and simple enough so that if you expalin it to most people they somewhat comprehend. Here's an overview/refresher:

  An adult produces approximately one liter of mucus a day in the nose and sinuses, most of which is carried through the nose and down the back of the throat where it is swallowed. We are generally unaware of this constant cleansing movement, which is facilitated by microscopic hairs called cilia that beat inside nasal and sinus passages. Cigarette smoke, however, slows down the sweeping action of the cilia. The thin mucus blanket that covers the nose and sinus lining thickens, and postnasal drainage can become quite thick and noticeable. Becuase everything just kinda "hangs out" in the sinususes longer, there is more chance for an infection to spring up because all the bacteria are not being sent to the stoach like they should to be neutralized. Smokers are less likely than non-smokers to have the same degree of improvement after sinus surgery. Exposure to secondhand smoke can cause similar problems even if you are not yourself a smoker.

Bottom line, STOP SMOKING! I don't know about you guys, but that is one area I feel very comfortable talking to patients about by the end of this rotation. This and so many of the other things I've seen on this rotation would be so much improved if the patietn just STOPPED SMOKING!


Armpit lump- Dx wasn't Hodgkin's...
So, the mystery of the armpit lump is solved!! Thankfully the diagnosis was not cancer but rather cat scratch disease! Turns out that the patient remembered being scratched by a cat while he was housesitting in Bermuda but hadn't thought about it as the scratch had healed and there was no residual markings at the site.  

All about cat-scratch:

Etiology: Cat scratch disease is a bacterial infection caused by Bartonella henselae.  About 22,000 cases are diagnosed annually in the U.S.

SSx: Typically, the lymph nodes nearest to the scratch, lick, or bite of a cat become swollen within a few weeks of the incident.  The nodes can become quite large and reach sizes of 2 inches in diameter.  The nodes can be warm and even drain pus.  The majority of pts will have only swollen nodes as their main symptom. A minority of pts will also complain of low grade fever, fatigue, loss of appetite, and overall ill feeling.

Diagnosis: Dx is most often made by pt history (especially when they remember being scratched!) but can also be made by indirect fluorescent Ab (IFA).  This is 84-88% sensitive and 94-96% specific (yea EBM!). Lymph node biopsy (not the first line dx option) would show necrotizing granulomas ringed by lymphocytic infiltrates.

Treatment: Immunocompromised pts should be treated with antibiotics except PCN, amoxicillin, or nafcillin which pts are generally resistant to.  Those who are not immunocompromised generally do not need antibiotics.  Antipyretics and analgesics can be administered for supportive care.

***one webiste cautions "disposal of the cat is NOT RECOMMENDED since it carries bacilli for only a short time."  




CHF Drugs
    This isn't based on one patient, it's more of a population.  We have a number of patients being managed for congestive heart failure in our office, and with a range of severity of symptoms.  In trying to keep the drugs straight for each I came up with the following based on the NYHA Classification for heart failure...

Stage A - asymptomatic patients at high risk but without any identifiable structural abnormalities.
Treat with: risk factor reduction, education, treatment of HTN and/or dyslipidenia. Consider a diuretic.

Stage B - asymptomatic patients with identifiable structural abnormalities.
Treat with: ACE inhibitors or ARB's in all patients, Beta-blockers in some.  Beta-blockers should be used with caution especally in patients with other respiratory pathology like asthma emphysema, or chronic bronchitis.

Stage C - Symptomatic with structural abnormalities
Treat with: Oxygen therapy and loop diuretics, as well as ACE inhibitors, Beta-blockers, and salt restriction.

Stage D - end-stage patients, refractory to stangart therapy.
Treat with: Inotropics, ventricular assist devices, transplant, hospice.

  • ACE Inhibitors REDUCE MORTALITY by decreasing afterload and reducing sodium retention by inhibition of aldosterone secretion.
  • Beta-blockers REDUCE MORTALITY probably by reducing ventricular arrythmias.  Beta-blockers need to be used in combination with other agents, such as ACE inhibitors, diuretics, or both.  Early use of beta blockers may even help prevent left ventricular remodeling.
  • Aldosterone Antagonists (ex. spironolactone) REDUCE MORTALITY, these are potassium-sparing diuretics.
  • Digoxin and Furosemide (lasix) reduce symptoms but have NO EFFECT ON MORTALITY.
(note: the preceeding comes cardiologist reviewed and approved, is pretty current, and according to review books may have some relevance to the shelf-exam)


'tis the season

For contact dermatitis (CD).  This past week we have seen 5 people in the office with varying stages and degrees of contact dermatits. 

As you all know, CD is any dermatitis resulting from any direct exposure of the skin to a substance.  CD can be either immune (remember hypersensitivity?) or irritant.  Most instances of CD in north america (and all of those that we saw in the office) is from oleoresin urushiol found in poison ivy, oak and sumac.  Other sources are metals, fruits and medicinces including topical hydrocortisone. 

As I'm certain everyone has seen this at least once, i won't go into the clinical presentation.  Here are some picture links. #1 #2.

Most of the time CD will resolve with topical hydrocortisone cream (2%) use TID for a few days.  In extreme cases, such as one pt we had where the face, ears and palms were involved my attending gave prednisone 20mg BID x 7 days.  Patients can also take OTC benedryl and avoid heat (not a problem in the northeast). 

In my research i found an article that looked at erythema multiforme that was caused by Poison ivy (sorry only the abstract from outside).  In the peds population we have to be certain that contact dermatitis does not evolve into autoeczematization AKA the ID reaction which can be fatal if the child loses his/her airway.

And as one patient put it who was at least 60% covered...it itches like hell!


The Urine Cure

A patient came in for her yearly physical and gave me some interesting information.  Apparently, her sister felt that urine, yes urine, was the cure to everything!  Her sister was into alternative therapies and felt that drinking her own urine cured just about anything.  The patient reluctantly tried it herself and attested to the fact that (once she got passed the salty taste) drinking her own urine cured her of her sore throat. I assured the patient that this would never be something that physicians would prescribe, or even suggest.

Of course, I was very skeptical about this "miracle cure."  However, I was shocked to find that other people (besides this lady's crazy sister) actually do this too.  In fact, there seems to be a whole underground culture of people (even some famous people) who actually think this works. 

Whether or not this works, no one in their right mind would drink urine.  However, there may be some logic behind "urine therapy."  For example, eczema is thought to be due to a lack of urea in the skin and therefore, urea based products can be helpful.  Urea based products have also been found to be beneficial in children with ichthyosis.  In conclusion, there does seem to be a role for urine in medicine, but if you're thirsty, my suggestion would be to stick to water. :) 

 


Fall on Outstretched Hand

A pt who came in 3 wks after a fall on her outstretched hand.  She is 20yo and morbidly obese.  She had not come to the doctor because she didn't feel it was fractured, but after 3wks of continuing pain, she wanted to have it checked out.

We were worried that she had a scaphoid fracture because of the mechanism of injury and her weight which would increase the force on her wrist.  The first test that is easy to perform to rule-out a scpahoid fracture is to press on the anatomic snuff box to see if it causes pain.  This test is a highly sensitive (90%) indication of scaphoid fracture, but it is nonspecific (spec., 40%).  It is nonspecific because the sensory branch of the radial nerve could run through this area and also cause pain when pressed.  Check out this article with good pictures that show this and other tests that can be performed on the wrist to rule in/out a scaphoid fracture.

We ruled out De Quervain's tendonitis/tenosynovitis with a negative Finkelstein's test.  To perform this test, ask the pt to make a fist over their thumb, and ulnarly deviate the wrist.  A positive test is when a sharp pain at this site is produced by active extension and abduction of the thumb against resistance. 

It had been 3 weeks since the injury which was concerning because the treatment is wrist immobilization.  If a scaphoid fracture is not properly treated, it can cause avascular necrosis.  The blood supply for the scaphoid bone enters at the waist with some smaller arteries entering distally, but no arteries enter proximally. Retrograde flow from the distal vessels supplies the proximal end.  A fx proximal to the middle of the scaphoid can sever the communicating vessels and deprive the proximal fragment of its blood supply.

We sent her to orthopedics for a consult because of the time that had elapsed and a high clinical suspicion for a scaphoid fx.  We saw her a week later and she told us that the x-ray did not show a fx so she was scheduled for an MRI.  The orthopedist agreed that this was likely a scaphoid fx, but that they do not always show up on x-ray (especially within the first 2 weeks of the injury).  Even though it had been 3 wks, they were concerned and wanted to get the MRI.  She was put in a wrist immoblizer until a fx could be confirmed. 

Here is another good, relatively short, article that gives a nice overview with differential for scaphoid fractures.  Finally, a website designed for pts to get info on scaphoid fractures.


Another Cure-All: Magnets

I've heard so much in the past month about magnets as a cure for a multitude of complaints, that I just had to investigate.  My preceptor does not use magnets in treating his patients, but has used a magnet for his own back pain (secondary to a fall from a ladder.)  He notes remarkable relief, but it is relief which he readily acknowledges could be due to placebo effect.  (He's an EBM savvy guy.) 

There are tons of magnetic products available (magnetic mattresses, magnetic water, etc) for treatment of a variety of complaints (arthritis, poor sleep, etc.)  This site is just one of many that can be found on Google; there are tons of online magnet stores with anecdotal evidence of the efficacy of the magnets, but it is difficult to find concrete evidence of how these magnets work. 

So I went to EBM Mecca (Pubmed) to find some solid EBM about magnetic therapy.  There are a few studies to be found on Pubmed that investigate the efficacy of magnets.  This double-blind study finds that magets do seem to reduce pain in knees, but further study is needed to determine the physiologic mechanism.  This RCT admits to challenges with blinding, but does find significant improvement in disability and pain reduction of chronic pelvic pain.  

In conclusion, there is plenty of anecdotal evidence available to demonstrate efficacy of magnets, but EBM is less conclusive.  Other studies conclude that we still don't know if relief is simply due to placebo effect, and if not, then what is the mechanism that provides this analgesia? 

It's an interesting topic, and believers of this therapy are downright evangelical.  The office is holding an "in-service" next week to learn more about this alternative therapy.    


Lower Extremity Cellulitis

A middle aged patient came to the office the other day with complaints of "cellulitis."  The patient explained that he had two prior incidents of cellulitis, one of which required IV antibiotics and hospitalization for three days.  The cellulitis has always occurred in the same leg.  The patient stated that he noticed a small scratch on his left leg a few days prior.  The leg became swollen, red and warm over the next few days.  He came to the office knowing that he needed antibiotic treatment 4 days prior to his current visit.  The patient had been placed on levaquin(a fluoroquinolone) "since he was allergic" to keflex(a cephalosporin) and would develop "hives and blisters".

The patient denied any history of diabetes, immunodeficiencies, vascular disorders, or previous leg surgeries.  The only medication the patient was taking was the Abx.  The patient's ROS was negative.  On physical exam the patient was morbidly obese, afebrile, VSS.  The left lower extremity was remarkable being erythematous, dry, warm and exhibiting 4+ pitting edema.  The erythema and edema were distributed from the ankle to about 2/3 up the left leg.  There were two fine superficial lacerations on the anterior leg.  There were no signs of bullae or necrosis.  The leg was nontender with palpation.  The line which had been drawn on the patient's leg his previous visit as the top most border of the erythema continued to demarcate the site of inflammation.  There was no sign of improvement.  The patient's other LE exhibited no edema, no erythema, and no dryness.  Here is a picture of bilateral LE cellulitis

 

Points to note in the history when evaluating cellulitis:

  • Hx of trauma or surgery - none reported by this patient
  • Hx of peripheral vascular disease or diabetes - neither were positive in this patient
  • Hx of foreign body - none reported by this patient

 

4 cardinal signs of infection: erythema, pain, swelling, and warmth.

 

Most Common Causes of Cellulitis in a healthy individual:  Streptococcus pyogenes and S aureus

 

Workup:  Most often lab studies, imaging, and procedures are unnecessary and none were done for this patient.  You can actually rely on your H&P!

Treatment:  Often cellulitis without systemic symptoms as was seen in this patient can be treated in the outpatient setting with a 10 day course of an appropriate oral antibiotic.  This patient was treated with levaquin, which according to these two sources(one and two) works with uncomplicated cellulitis.  However, without any signs of improvement after 4 days of Abx, this patient was advised to go to the ER for possible admission and IV antibiotics. 

It is recommended that patients follow up 2 days after initial treatment of the oral antibiotic to assess improvement, and if none - parenteral Abx should be initiated.        

Prognosis:  "Uncomplicated cellulitis has an excellent prognosis. Outpatient regimens are effective in far more than 90% of patients. Of those who fail outpatient therapy or require admission initially, intravenous antibiotics are very effective."

Points specific to this case:  This patient has no history of a vascular disorder, or diabetes despite being morbidly obese.  Additionally, this patient has had three episodes of cellulitis in the same leg.  Most likely, this patient has some issue which is predisposing him to cellulitis and has not yet been diagnosed. 

 

The helpful links:

http://www.fpnotebook.com/ID159.htm

http://www.fpnotebook.com/ID157.htm

  http://www.fpnotebook.com/ID142.htm

http://www.fpnotebook.com/ID141.htm

http://www.emedicine.com/emerg/topic88.htm

http://www.emedicine.com/med/topic310.htm

http://www.sma.org/smj1997/decsmj97/6text.htm

http://www.healthscout.com/rxdetail/68/58/7/main.html

http://www.amcstudents.com

May 28, 2005
Peanut Allergy

Recently a young mother came in with her 1 year old infant for a well child visit. After some discussion of good food choices during the 2nd year of life, she asked about highly allergic foods and specifically peanuts. My MD informed her that she could feed her child any of these items, keeping in mind choking hazards of course.

This is correct as long as there is no history of food allergies in the family. For a child without this history the AAP currently recommends waiting until 4-6mnths for solid food and 1yr for egg whites, whole milk, and highly allergenic foods such as berries and peanuts. With a family history this recommendation changes to 6mnths for solid food, 1 year for dairy, egg whites at 2 years, and peanuts at 3 years.

If you're interested in food allergies see this NJ document. If your interested in the recent escalating trend in peanut allergies see this article.


Hydrocele

An elderly gentleman presented with a chief complaint of an enlarged, tender right testicle.  On PE, the testicle was unbelievably large and obviously causing the man a great deal of pain.  Upon turning out the light of the exam room and shining the opthalmoscope light from underneath the mass, the testicle transilluminated, leading to the diagnosis of hydrocele.  He was referred to urology.  I decided that this might be a good opportunity to brush up on normal male anatomy and the pathophys of this condition.

In the normal male, the tunica vaginalis is a potential space surrounding the anterior 2/3 of the testicle and this is where a varieity of fluids can accumulate.  The epididymis is posterolateral to the testicle.  The spermatic cord (testicular vessels + vas deferens) is connected to the base of the epididymis.

To review, a hydrocele is a collection of peritoneal fluid b/w the parietal and visceral layers of the tunica vaginalis (in the aforementioned potential space.  This makes sense since this is the same layer that forms the peritoneal lining of the abdomen.  Simplified, hydroceles are an imbalance between secretion and reabsorption of fluid from the tunica vaginalis.  Transillumination differentiates this from a hematocele.  

Hydroceles can occur secondary to testicular neoplasm or acute inflammatory scrotal conditions.  Idiopathic etiology is the most common, only requiring treatment if symptomatic.  Other causes are epididymitis, torsion, appendiceal torsion.

The most common treatment is surgical excision of the hydrocele sac.  Reaccumulation of fluid typically occurs if simple aspiration is performed.  The above-mentioned patient would probably been fine with a wait and watch approach.  However, he had a history of BPH and a very strong family hx of prostate cancer...hence the referral to urology. 

Hope this helps!

May 27, 2005
Just give me the shot, doc!

As a family medicine physician, my preceptor obviously sees a multitude of patients with various problems.  However, I have noticed that there are a great deal of patients who come in with acute or sub-acute back and joint pains.  After ruling out more serious causes, my preceptor diagnoses either lower back muscle spasms or some sort of tendonitis.  He then offers them the option of conservative therapies, such as cold/hot packs, ibuprofen and modification of injurious activities, or corticosteroid injections combined with a local anesthetic.  I have seen many patients, especially those with low back pain, go for the injection and wondered if there is any real difference in the outcome - shorter duration of pain, disability or a decrease in recurrence.  My knowledge up to this point has been that there is not much difference - it just takes time.

This article (sorry, no full article) is a Cochrane Database Systematic Review of the effectiveness of injections in the treatment of low back pain.  This article in fact goes beyond just local injections and compares facet joint, epidural and local injections.  It concludes that the methodologic quality of most of the studies are poor and thus are not entirely conclusive.  Furthermore, some studies employed other modes of treatment (physical therapy, manipulation), making comparisons even more difficult.

As far as bed rest vs. continuing daily activity is concerned, most studies (again, no full text) have shown that returning to daily activity as tolerated for those without severe pain or lumbosacral radicular syndrome is beneficial in terms of decreasing duration of pain, intensity, and length of recovery.

So it seems that steroid injections can't hurt - many patients report back that it worked well for them with no adverse effects - and its anti-inflammatory properties are undeniable.  However, when considering conservative therapies vs. less conservative therapies, it might be more logical to try the less invasive approach first.


This link provides an informative concise fact sheet regarding back pain for patients.

May 26, 2005
2 in a million

"An early diagnosis of Adult Still's disease can be made if the treating physician is aware of the rare condition." ---the conclusion from a case study of patients in India, however their presenting symptoms were much like the complaints of our patient who was diagnosed 15 years ago. He came in today presenting with fever of 3 days, rash on both forearms, lymphadenopathy, and sore throat, and left with a diagnosis of "flare-up of his  Still's". This entry is to give a brief description of Adult Still's Disease (ASD).

ASD is a rare (2 in 1,000,000) inflammatory disorder that present with daily spiking high fevers, arthritis, and an evanescent rash. The etiology is unknown, however infectious triggers (ie. rubella, echovirus, mumps, EBV, CMV, parainfluenza, and parvovirus Yersinia enterocolitica, Mycoplasma pneumoniae) and genetic factors (ie. HLA-B17, B18, B35, and DR2) have been suggested. There is a bimodal age distribution, occurring between the ages of 15-25 and 36-46. However, occasional patients present after the age of 70.
The diagnosis is made clinically, with the highest sensitivity obtained by applying the Japanese criteria which include at least 5 of the following features, 2 being major criteria.
 Major criteria: fever of at least 39ºC one week or longer, arthralgias/arthritis two weeks or longer, macular/maculopapular, nonpruritic salmon-pink eruption-rash over trunk or extremities during febrile episodes, leukocytosis (10,000/µL or greater) with 80% or more granulocytes.
Minor criteria: sore throat, lymph node swelling, hepatomegaly and/or splenomegaly, abnormal liver function studies (particularly aminotransferases and LDH), negative tests for antinuclear antibody and rheumatoid factor.
ASD has also been associated with markedly elevated serum ferritin concentrations in which is probably acting an acute phase response since hepatocytes responding to inflammatory cytokines can increase ferritin synthesis. However, availability of the assay for glycosylated ferritin, a test that not currently performed in most clinical laboratories, limits its usefulness.
The clinical course of ASD can be divided into three main patterns: 1/3 of patients have a self-limited path lasting 1 yr with complete resolution. The second 1/3 have an intermittent course with complete remission between episodes. Each subsequent flare tends to be less severe and of shorter duration than the previous. The last 1/3 of patients have the chronic form of disease characterized by persistently active disease, usually due to a long lasting, destructive arthritis. Although some of these patients require total joint arthroplasty, about 1/4 of patients eventually improve after many years.
Treatment for patients include NSAIDs, aspirin, glucocorticoids, and immunomodulating drugs (such as hydroxychloroquine, azathioprine, cyclophosphamide, cyclosporine, sulfasalazine, IV immuneglobulins, and anti-TNF alpha agents).

May 23, 2005
Netipot for Sinusitis relief.

Springtime, that wonderful time of the year when thousands of patients rush to their physicians with complaints of allergies or sinusitis.  They want relief and they want it fast.  Well, for those with allergies, this blog is not for you.  On the other hand if your patients complaint is sinusitis then listen up.

Over the past 3 weeks I have had more than a handful of patients with sinusitis.  They come into the office wanting antibiotics for their "infection" that has lasted for 3 days.  The problem is that there is no simple and accurate test to diagnose acute bacterial sinusitis vs viral sinusitis. Studies have shown that only up to 2% of patients seen by their primary care physician for rhinosinusitis have acute bacterial sinusitis.  Imaging studies are not that helpful.  X-rays have a wide range of sensitivity from 41-90% and specificity from 61-85%.  The clinical criteria that leads one towards the possible diagnosis of bacterial sinusitis includes duration of illness greater than 1 week, persistent unilateral purulent nasal discharge and, maxillary facial pain or tooth pain, usually also unilateral.  The majority of patients who present to the office with mild/moderate symptoms less than a week will most likely improve on their own and do not need antibiotics.  What they need is a way to get symptomatic relief and analgesics. 

In our office, if the patient has no fever, no purulent discharge, minimal sinus tenderness, and symptoms less than 1 week, we recommend watchful waiting, along with ibuprofen or Tylenol for the pain, and nasal irrigation with a saline solution every 3 hours to thin the mucus and help flush it out of the sinuses.  This is where the neti pot comes into play.  They are these small contraptions that help the patient flush their sinuses. One randomized controlled trial found that daily saline irrigation of the sinuses helped improve quality of life for chronic sinusitis patients.  These findings can be applied to the general population with rhinosinusitis.  If symptoms do not improve within 3-5 days then we ask the patient to call and we will consider further therapy.

The major causes of bacterial sinusitis in adults are S. pneumo, H. influenzae, and Moraxella catarrhalis.  If the duration of symptoms extends beyond 2 weeks than bacterial sinusitis is more likely and a narrow spectrum antibiotic would be the treatment of choice.  These include amoxicillin, doxycycline, or TMP/SMX.  For a very nice comprehensive overview on Acute Bacterial Sinusitis diagnosis and treatment, check out this article in the New England Journal of Medicine from August 26, 2004 .Vol.351:902-910.

May 22, 2005
The “True” Cause of Hypertension?

This past week, a 63 year old woman came by the office for a follow-up on her newly diagnosed hypertension.  My attending explained to her that because of the measurements that we had made over the last few visits (she had been running in the 160/100 range) it was essential that we prescribe some medications to her for control of this condition. 

This was a difficult pill for the patient to swallow, because up to this point she had stated that she had had very good blood pressure.  With that in mind, she asked us, "What causes hypertension?"  The doctor and I then proceeded to explain the two types of hypertension, and that the type with which she has (and that 90-95% of the population with elevated BP has) is essential hypertension.  However, we could not adequately explain the reason for its occurrence, because presently our medical knowledge lacks a good explanation.

I decided to do some research and found some interesting studies which suggest that hypertension may have a microbial cause.  Although this may sound far-fetched, it was only recently that the discovery of H. pylori in the stomach led to the idea of bacteria causing ulcers.  So this idea may have some merit.

One study in particular finds that the bacterium Chlamydia pneumoniae may be the etiologic agent for hypertensives.  In this study, it was found that hypertensive patients were more likely to have elevated IgG and IgA titers against C. pneumoniae.  Pathophysiologically, another study has shown that the infectious burden (the number of seropositivies to C. pneumoniae and other agents) is associated with the progression of atherosclerosis (as measured by intima-media thickness).

If these results continue to hold true, it may be possible in the future to have a "cure" for hypertension.


Pink eye?

A young child has been seen at our office 3 times (of course this was the first time I had seen the patient) with bilateral conjunctivitis.  The mother believes that he has pink eye in both eyes that has not resolved with our prior two treatments of tobramycin gtts (first Rx 2 gtts each eye TID for 3-4 days until clear, second Rx same except for 7 days).  At the first visit mom was instructed as to how to apply the gtts making certain the applicator does not touch the eye and that the gtts enter the eye each time.  The child's symptoms (puritic eyes, injected conjunctiva and minimal discharge) have persisted despite our treatment.  The child had a persistent conjunctivitis at approximately the same time last year that seemed to resolve with the treatment that was given by another physician for which we did not have any records nor could the mother remember what it was. 

Taking into consideration that the antibiotics did not work and the repeat of a persistent conjunctivitis at the same time last year we concluded that this was most likely allergic conjunctivitis. 

Being the cute kid that our patient was (most of us were once) our patient had rather long eyelashes.  This article shows how children with longer eyelashes are more apt to develop vernal keratoconjunctivitis (vkc), which is a seasonal allergic conjunctivitis. 

So how do we treat allergic conjunctivitis you ask?  Typically with an ophthalmic antihistamine or anti-inflammatory, but they can also be used systemically.  One study I came across was the use of sub lingual immunotherapy in seasonal allergic rhinoconjunctivitis and they found no significant improvement in their patients trying the SL therapy vs. oral or ophthalmic. 

One more thing to add to the differential when you walk in and see "pink eye."


Scrotal mass in a young male

Recently a teenage male presented  to our clinic with a c.c. of a mass in his scrotum that he felt several days before.  This was the first time he has noticed this mass.  He reports it being painless, soft, moveable but generally secure in location in his scrotum.  He has not been sexually active yet.  He offers that he fears it is cancer and wants it checked out. On examination of this healthy appearing, normally developing male a ¾ x ¾ cm soft mass is palpated anteriorly in his scrotum adjacent to his testicle.  He reports no pain upon palpation.  Transillumination with a flashlight is readily achieved.  Of note transillumination is common in hydrocele but not diagnostic, therefore further workup is indicated.  Auscultation of the mass for bowel sounds can help in diagnosing hernia.  U/S is used to confirm diagnosis of hydrocele.

     A preliminary Dx of an hydrocele was made for our patient but an ultrasound was scheduled to confirm this.  Hydrocele is a collection of fluid between the tunica albuginea and tunica vaginalis.  The tunica albuginea directly surrounds the testicle while the tunica vaginalis surrounds both.  This collection is painless, can enlarge, and transilluminates.  Most hydroceles require no treatment unless the patient is symptomatic or hernia is present.  Rarely they can be associated with infection, injury and even rarer tumor. 

    Testicular tumors are usually found in men between ages 20 and 35  more common in white men than black men.  The most common type of tumor are seminomas. Cryptochordism is associated with a higher incidence of testicular tumors.  Sx's include painless swelling of the testicle.  Dx is by U/S.  Some patients will have elevated tumor markers such as human chorioic gonadotropin and alpha-fetoprotein.  Treatment involves surgical removal of the testicle or radiation therapy.  Prognosis is excellent while diagnosed early.  Bearing this in mind young men are encouraged to do monthly testicular self-examinations. Two informative links are included below, the later with a review of anatomy and embryology.

http://familydoctor.org/387.xml

http://www.cancergroup.com/em26.html


Postmenopausal Hormone Replacement?
This has come up several times recently so I looked it up in UpToDate.

Estrogen is the most effective treatment for the relief of menopausal symptoms such as hot flashes, vaginal dryness, urinary symptoms, and emotional lability.  In the past we have used estrogen and combined estrogen-progestin therapy, not only for these symptoms, but also to prevent coronary heart disease and osteoporosis.  This changed recently as a result of the Women's Health Initiative study.

A very general summary of the WHI findings are as follow:
  • HRT increased the risk of CHD events, Strokes, Pulmonary Embolism, and Breast Cancer.
  • HRT decreased the risk of Colon Cancer and Osteoporosis (hip fractures).
  • There was no overall increase in adverse events for most women, the benefits gained were equivalent to the risks conferred.
  • The absolute risk of an adverse event was still quite low (ex. 19 additional events per year per 10,000 women with HRT compared to placebo).
The findings are summarized in the following UpToDate chart.  What you need to remember to read it is that a Hazard Ratio is a form of relative risk.  So for example if the HR is 0.5, the relative risk of dying in the treatment group is half the risk of the control group.  An HR > 1.0 indicates an increased risk.  The interesting line in the chart is the "Death" outcome, which shows no overall change in mortality between estrogen, estrogen-progestin, and control.  The benefits balance the risks.
UpToDate HRT-Risk Chart


The practical upshot is that we need to look at the risk profile for each individual patient before starting HRT.  A patient with a significant history of colon cancer may be a good candidate, while a patient with significant familial breast cancer may wish to reconsider.

If you're reall interested in hormone replacement, here is a concatenation of about ten UpToDate articles for your reading pleasure. Warning,.. it's 86 pages long.


Lump in the armpit
A patient presented on friday afternoon at 4:00pm to have his knee checked because it had been bothering him now that he was exercising regularly.  And, oh, "could you also take a look at this lump that I noticed in my ampit?"

(The knee story is that he's had a bad knee for a while and didn't want a replacement but now he might have to get one....on to the armpit)

So I ask him to show me this lump.  He raises his arms and points to the mass under his left arm.  Quick version of HPI: he noticed it a week or so ago, tender to the touch, no fever, chills, nightsweats, or weight loss recently.  He denies fatigue, muscle aches, cough, sore throat, runny/stuffy nose, basically denies everything, he has been in great health.  He has not noticed any other lumps on his body.  He has been exercising regularly and eating well (did i mention he had been housesitting in Bermuda for the past 2 months!! um, can i have that job?)

PE: The mass is firm, mobile, mild discomfort to the touch, no warmth, no erythema, no discoloration of the overlying skin. No other palpable nodes in the vicinity or elsewhere on the body. 

Preceptor takes a look...it's now 4:30pm, and wants him to schedule with a surgeon immediately for a biopsy.  Although he doesn't tell the patient, the Dr. believes, even without the classic sx, the diagnosis is Hodgkin's.  Seeing how it's friday at 4:30, this will all have to wait until Monday.  Not the best way to start the weekend.

Hodgkin's Lymphoma:
Def'n-  malignant disorder of lymphoreticular origin; characterized by the presence of Reed-Sternberg cells (multinucleated giant cells).
Age of onset: bimodal distribution 15-34 yo and over 50yo.
Signs and SX: pts present with fever, night sweats, weight loss, malaise, dry cough, pruritis, and increased pain at tumor site after EtOH consumption.
Treatment: main modalities are chemo and radiation but these vary depending on the stage. (argh!!!! this geriatric computer won't let me link so for your reading pleasure I will summarize the staging...)
Stage 1- only found in 1 node or lymphoid structure
Stage 2- involves 2 or more nodes in the same region on the same side of the diaphragm.
Stage 3- involves nodes on both sides of the diaphragm.
Stage 4- disseminated disease.

How to stage:
Biopsy
Imaging studies (CT, xray, Gallium scan)
Hematologic studies (CBC, ESR, BM biopsy)
Biochemical studies (LFTs, renal fxn, LDH, alb, Ca2+)

In this man's case, we only found the one axillary mass on PE and no constitutional symptoms but we will await the biopsy result.


Cyst on the Wrist

A 20yo female came to the clinic with a chief complaint of a lump on her wrist.  Before I went in to go see her, the physicians already told me I should be able to guess what it is...well, I couldn't!!!  They suggested it was most likely a ganglion cyst, which is what it turned out to be.

She said she had the lump for the past 3 months on the palmar side of her wrist, just lateral of the midline.  It disappeared for a couple weeks, but then came back and is now growing in size.  It is sometimes painful to the touch and when she flexes her wrist, but was not painful today.  On exam, it was non-tender and about 1cm in diameter and was raised about 5mm.  It was semi-hard and non-mobile.  There was no erythema or heat.

According to the doctor, this was a perfect example of a ganglion cyst of the wrist.  Which occurs most often in women and 15% are in pts under 21yo.  They are often asymptomatic and treatment is not needed if they go away on their own.  Funny thing is there is an old therapy sometimes called "Bible therapy" where a heavy book is used to smash it.  Believe it or not, this girl was told by her previous doctor, that this is what they would do if it got worse!!!  She was a little scared when she came in thinking this might actually be done by us! 

We reassured her this would not be done and is an old method of treating it, but is no longer used. There are some good articles for patients, which give a nice overview of ganglion cysts (and can dispell the myths!).  Also, here is a nice overview for all us future doctors!

Treatment is usually aspiration if it is painful and does not go away. Unfortunately, it is likely to come back, unless the pt has it surgically excised. 


polymyalgia rheumatica

An elderly patient came into our office last week, complaining of terrible stiffness and soreness in her neck, shoulders, arms and both legs. The pain began several months ago and has gotten progressively worse since then. She says she has felt so tired and achy that she is not able to do anything outside of her home anymore. She doesn't have any other complaints.

These symptoms are consistent with a diagnosis of PMR, but there are other conditions that should be ruled out before you land on this diagnosis. In this patient, we ran a rheumatoid factor, which is positive in RA and negative in PMR, and an ESR, which is drastically elevated in PMR. Once a diagnosis of PMR is made, we should check for giant cell arteritis, which is present in about 15% of cases of PMR. This patient claimed to not have headaches or tender scalp, so we put off a temporal artery biopsy for the time being.

It is still unknown what the exact cause of PMR is, but there are some known risk factors, such as age > 70, female sex and caucasian race, all of which this patient had.

Treatment involves controlling the inflammation, so for mild symptoms, NSAIDS can work well, but one has to be careful for GI side effects if used long-term. For more severe cases, a daily dose of prednisone will make the patient feel significantly better. Actually, one way to confirm the diagnosis of PMR is to try prednisone for a few days and if the patient is not improved, then it is likely that the patient does not have PMR. Most patients have to take steroids for 6 months to 2 years.

I also found a trial comparing treatment with prednisone plus methotrexate vs. prednisone alone, which found that those in the prednisone plus methotrexate group had fewer flare ups, used a smaller dose of prednisone and usually remained off prednisone at the end of the study. It needs to be looked into further, but interesting article.

http://www.annals.org/cgi/content/full/141/7/I-12


Pallor, Cyanosis, Hyperemia - Raynaud's Phenomenon

            Recently a patient came to the office with complaints that her fingers and/or toes would change color when she was cold or exposed to cold.  The patient explained that her fingers or toes would become whitish and then light blue with the cold and eventually would become bright red after she would warm them up with rapid movements or by using warm water.  The patient complained that her toes had been doing this for years, and her fingers started doing this fairly recently.  The patient stated that during the episodes, she would experience some numbness that would resolve after the episode.  The patient complained that she had some minor scaring from the episodes on her toes but none on her fingers.  The patient denied the episodes occurring elsewhere on her body such as ears or nose. 

            The patient's ROS was negative.  The patient was an otherwise healthy female with no other complaints.  The patient had no other issues with her skin such as rash or sun sensitivity.  PE revealed no sclerodactyly, and no calcinosis but there were a few dark nontender, nonraised, nonpitting, lesions less than a millimeter in diameter on the distal skin of two toes.  The remainder of the PE was normal. 

            This article on Raynaud's Phenomenon is quite useful.  The concern with Raynaud's Phenomenon is that Raynaud's Phenomenon may be a marker for more serious disease such as scleroderma, SLE, and hyperviscosity syndromes.  Whereas, Primary Raynaud's Phenomenon, or Raynaud's Disease, occurs with vasospasms alone and no other associated illness.  Primary Raynaud's Phenomenon has a frequency of about 3 to 4 percent, occurring more often in women, with no racial predilection.  Typically PRP initially occurs in the second or third decade of life as seen in this patient. 

           

The Hx with PRP typically includes:

·         numbness and pain in the affected areas as described by this pt

·         affected areas show at least 2 color changes: white (pallor), blue (cyanosis), and red (hyperemia) as described by this pt

·         color changes are usually in the order noted above as described by this patient

·         changes are completely reversible as described by this pt

 

Diagnositic criteria

·  Periodic vasospastic attacks of pallor or cyanosis (some doctors include the additional criterion of the presence of these attacks for at least 2 years)
·  Normal nailfold capillary pattern
·  Negative antinuclear antibody test
·  Normal erythrocyte sedimentation rate
·  Absence of pitting scars or ulcers of the skin, or gangrene (tissue death) in the fingers or toes

These labs were ordered:  CBC, ANA and ESR which can help differentiate primary from secondary Raynaud's Phenomenon.  The patient's hx is suggestive of PRP; however, the lesions noted on the pt's toes are somewhat concerning.  The labs are pending.  The pt was given a prescription for a calcium channel blocker, which can minimize vasospasm in PRP.  However, the pt was already aware of the best treatment, protecting her body from the cold and warming her extremities when episodes occur.  The patient is to follow up as needed and will be contacted regarding the labs.   

 

The helpful links

http://www.niams.nih.gov/hi/topics/raynaud/ar125fs.htm

http://www.emedicine.com/med/topic1993.htm

http://www.merck.com/mrkshared/mmanual/section16/chapter212/212d.jsp

http://healthlink.mcw.edu/article/926055412.html

http://www.amcstudents.com


Epididymitis

17 y.o. male presents with right sided scrotal pain for the past 5 days. The onset of pain was gradual, it is constant, and he currently rates it as 6/10. He has never had this type of pain before. He has no dysuria, urgency, color change in urine or discharge. No complaint of fever, chills, nausea or vomiting. The patient became sexually active a little more than one year ago with 3 lifetime partners. While he uses condoms, he states that he does not use them all the time. He has been with his current girlfriend for 2 months.

Pertinent physical findings include tenderness of the epididymis on the right testicle, no testicular or scrotal swelling, and relief of pain with support of the right testicle. Urinalysis was negative.

The most likely cause of the patient's pain is epididymitis. However, one also needs to consider testicular torsion.

The epididymis, which facilitates sperm maturation, is located on the posterior aspect of the testicle. Epididymitis is classified as either acute or subacute. Acute epididymitis is relatively rare and characterized by exquisite pain and severe swelling. It is often accompanied by high fever and irritative voiding symptoms. Subacute epididymitis typically presents in an otherwise healthy male. The degree of epididymal tenderness is more subtle, irritative voiding symptoms are usually lacking, the urinalysis is generally negative, and there may or may not be swelling. The patient's complaints and physical findings are, therefore, suggestive of subacute epididymitis.

Epididymitis is typically seen in adults aged 19-40 years with a frequency of less than 1 in 1,000 males per year. It is most often caused by the retrograde extension of organism from the vas deferens. In prepubertal males and males older than 35 the most common causative organism is E. coli. Due to the link between epididymitis in prepubertal males and anatomic abnormalities, these patients should be referred for urological work-up. Epididymitis is most commonly seen in males aged 19-35. In this group the most common organism identified is Chlamydia followed by Neisseria gonorrheae. Therefore, the CDC recommends empiric treatment with ceftriaxone and doxycyclin of males in this age group. For prepubertal patients and patients older than 35 trimethoprim sulfamethoxazole (TMP-SMX) or a fluoroquinolone are recommended to cover for coliform bacteria.

It is important to rule out testicular torsion expeditiously as the salvage rate of the testicle is 80% to 90% if detorsion of the testicle occurs within 6 hours of the onset of pain. The rate of salvage approaches 0% if detorsion does not occur within 12 hours. The classic findings of testiclular torsion include sudden onset of pain (epididymitis is associated with a gradual onset of pain that peaks in about 24 hours), a high riding testicle with a "bell-clapper" deformity (the long axis of the testis is transverse rather than longitudinal), profound testicular swelling and an exquisitely tender testis (tenderness of entire testis not just the epididymis). The ability to differentiate between epididymitis and testicular torsion can be difficult. The Prehn sign, which refers to decreased pain with scrotal elevation or support that occurs with epididymitis, is sometimes used to differentiate the two. This relief in pain does not occur with testicular torsion. The Prehn sign, however, is not considered a reliable method for differentiating epididymitis from testicular torsion. Treatment for testicular torsion requires detorsion of the testis either manually or surgically to reestablish blood flow.


Tinnitus

In the past week, I have seen 2 patients with complaints of tinnitus.  One is a man in his 30's who states that his right ear rings after hearing loud noises, such as his 9 month old child screaming.  He also notes that he frequently has to ask people to repeat themselves because he is having difficulty hearing.  The other patient is a woman in her 30's who states she has ringing in her right ear "all the time." Physical exam, including Weber and Rinne tests, were negative for both patients. 

I didn't know much about tinnitus, so I decided to look into the matter.  Believe it or not, there is an American Tinnitus Association with a handy FAQ page which answers many basic questions about tinnitus.  This MedlinePlus site also offers useful information about tinnitus. 

Both patients claim that they "can live with the ringing'" but it is (wicked) annoying.  The man will see an ENT for help with his tinnitus (since he is also suffering with some subjective hearing loss); the woman has opted to live with it for now.  As listed on the ATA site, there are many treatment options for tinnitus ranging from alternative treatments to cochlear implant.  I hope to be better prepared for my next tinnitus sufferer.       


Chemo for multiple sclerosis

A teenager with multiple sclerosis came in for her monthly follow-visit.  She had an extensive history of being paralyzed and severely debilitated from her disease.  She was schedule to receive a course of cytoxan and oral steroids the following day.  This sparked my curiosity as to the rationale behind using chemotherapy as a treatment for multiple sclerosis.  I later found out that since multiple sclerosis is an autoimmune disease, chemotherapy can be used to suppress the immune system and prevent autoimmune destruction.

As a side note, the patient was given a hard time about using chemotherapy as a treatment for multiple sclerosis.  The insurance company was claiming that chemotherapy is only approved for the treatment of cancer.  After much convincing, the insurance company finally approved her treatment.


Bullous myringitis

I was pulled into the exam room by one of the docs that I don't usually work with the other day to take a look at a little boy's ear.  I correctly recognized the bulging TM with a "blister" like appearance but failed to name it as "bullous myringitis" (it was on the tip of my tongue I swear) He proceeded to tease me (good-naturedly) about the fact that I'm going into pediatrics and didn't recognize this finding, "classic peds" he said. Then he asked me what the most likely bug is that causes this. S. pneumo was my guess, but wrong again....or was I?

He told me you have the think Mycoplasm with BM. However, little did he know I have the power of the  blog on my side an did a little research of my own. Turns out Mycoplasm USED to be thought the be the etiology of the diesease, but in fact more recent research has deciced otherwise.  Most likely BM is nothing more than a progression of otitis media, and what do you know, S. pneumo is a common cause. 

The article attached has some good pics and good "pimpable" facts if you skip over all the methods and results mumbo jumbo.  Now the question remains, do I let this guy know? How exactly do you tell an attending he's misinformed with out coming off as an arrogant punk of a med student. Maybe thats a whole different blog :)


pain management
I recently saw a patient for uncontrolled, diffuse pain secondary to bony mets from prostate cancer.  It was obvious that this older gentleman was severely uncomfortable and, at the risk of sounding pessimistic, quickly approaching the end of a long fight with cancer.  His pain was described as an 8/10 @ baseline.  It radiated in every possible direction, was exacerbated by movement (even deep breathing) and was alleviated by nothing.  It was clear that he was in severe pain and noticeably depressed as a result.   After doing some  research, I was surprised to learn that inadequate pain management is an extremely common problem despite the fairly well outlined methodology of pain treatment.
The WHO classifies cancer pain as somatic (bone pain), neuropathic (type I is sharp, stabbing, burning, "zinger-like"; type II is dull, aching), or visceral pain.
The WHO analgesis ladder is:
Step I: acetaminophen, ASA, NSAID's.  Step II: Codeine (w/ or w/o acetaminophen), hydrocodone (w/ or w/o acetaminophen or ASA).  Step III: Morphine sulfate, hydromorphone, fentanyl, levorphanol, methadone.  Adjuvant analgesics are corticosteroids, TCA's, anti-convulsants and NSAID's.
Furthermore, there is a detailed outline of the method of beginning narcotic analgesic for mederate to severe cancer pain in the outpatient setting:
First, choose the drug (i.e. morphine sulfate).  Begin w/ a short-acting form.  In one week, switch total daily dose to long-acting morphine and continue short-acting morphine for breakthrough pain.  Always start bowel regimen at the same time as narcotic is begun lactulose or stool softener plus peristaltic  stimulant.  finally, consider anti-emetic tx for the first few weeks of narcotic therapy.
Other forms of palliative cancer pain therapy include palliative radiotherapy, palliative surgery, palliative chemotherapy.
cancer pain management is still inadequate in many settings, primarily due to the physicians' fear either of patient addiction/abuse or of trouble with DEA authorities.


Ear wax a common complaint

Patient is a 7 years old boy who present to the clinic with his mother for well child exam.  While examining the patient's ear, patient was noted to have a lot of wax.  Patient's has no frequent history of otitis media and tympanic membranes are intact.  Mom wants to know there is a way to get rid of the wax since cotton swabs are not recommended. 

Ear waxes are sticky liquid secreted by cerumen glands found only in the skin of the ear canal.  Its purpose is to protect the ear drum and canal from foreign material.  In most cases, it is self cleaning, however when there are excess buildup, symptoms can developed.  Symptoms can include partial hearing loss, tinnitus, earache, and sensation of fullness.  Self-treatment at home includes flushing with warm water using a bulb syringe or mixture 50% of hydrogen peroxide and 50% water.  Softening of wax can be accomplished with mineral oil, baby oil, or commercial ear drop.  Ear candling is not recommended.


turmeric - the wonder spice?

A 60+ y.o. woman came in complaining of back pain due to lifting a heavy object.  During our conversation, she mentioned that over a year ago, she had been almost bedridden with arthritis - extreme difficulty getting up in the morning and moving around throughout the day.  At an Oriental food store, she was told to take 1 tablespoon of turmeric daily.  She did this for 6 months, and by the end of this time period, she was full of pep, no longer had aches/pains, plus her GERD was also gone!  She had once been on a very limited diet because of the GERD, but after her 6 month regimen, she could eat anything without a problem.  I mentioned this to my physician, who said that she had heard about turmeric being used for colds in India.  1 teaspoon with a glass of water or milk, and it helped relieve symptoms.

The patient wanted to go back on her turmeric regimen, which the doctor okayed, with a suggestion of taking 1 teaspoon instead of a tablespoon.  The patient loved this idea, since she didn't like the taste.

UpToDate states that turmeric (curcuma longa) has been reportedly used as an antioxidant/anti-inflammatory, antirheumatic, hypercholesterolemia, dysmenorrhea, and for muscle soreness.  It also stated that Ayurvedic (traditional Indian) medicine has used it for GI complaints and skin diseases.  Ovid has 103 articles about turmeric since 1999, with research on its effects on Alzheimer's, various forms of cancer, MI's, H.pylori, depression, diabetes.  The majority of articles were done with lab rats, though. 

One article reviewed 337 studies and found that turmeric has enormous potential in the prevention and therapy of cancer.  Another article (sorry, couldn't find a link) of phase II clinical trial showed that 76% of subjects with peptic ulcers no longer had ulcers after  8 weeks of turmeric, while the rest of the subjects had relief of pain and discomfort. 

More information can be found on the University of Maryland's website http://www.umm.edu/altmed/ConsHerbs/Turmericch.html 


Babies with flat heads

Recently two children less than 1 yr old were seen in the office for well child visits and were found to have a very flat posterior head shape. The parents were concerned and had questions. Is it dangerous? What caused this deformation? Will it get better? What can they do?

After looking into the condition, on up-to-date, pubmed, and google I found that there is quite a lot written on the subject, but not a whole lot known. First "Is it dangerous?: Well no, probably not. The vast majority of the children with this condition have what is known as positional or deformational plagiocephaly caused by prolonged external forces to the back of the head. There has recently been an increase in the amount of these seen most probably due to the "Back to sleep" campaign to avoid SIDS (see this abstract).

This condition is universally assumed to be benign (no real long-term data on IQ or other indices have surfaced in my search) but can be confused with a pathologic condition called posterior synostotic plagiocephaly. This is a condition caused by internal pulling forces rather than external forces when one of the sutures closes prematurely. This latter condition is not benign. It can be identified by plain film but CT is a better modality. It can cause brain damage from compression and increased ICP, hydrocephalus and if left untreated presumably retardation. It must be treated with surgery.

Positional plagiocephaly only very rarely requires surgery. It is usually treated by simply changing sleep position, avoiding the flat part of the head, and lots of belly time during the day. If this fails a helmet can be used to take the pressure off the affected part of the skull. See these abstracts for some info on risk factors and these treatment modalities 1 2. In most cases these treatments are effective in fixing the condition and by 8-12 months the head is more rounded again.

So that pretty much answers those questions that matter to the parents, but the practitioner is still left with the question: Given that these two conditions confer very different prognoses and look similar, do I have to do a CT on every kiddo who comes in with a flat head, or is there a difference in the physical exam?

One online source contended that careful examination of the head shape is usually sufficient to tell the difference between the externally deformed head (positional plagiocephaly) and internally deformed head (synostosis), but laughably didn't say how. Up-to-date says, "The position of the ear is the most reliable indicator of the correct diagnosis. In posterior positional plagiocephaly, the ear is displaced away (anterior) from the flattened region. In contrast, in posterior synostotic plagiocephaly, the ear is displaced towards the affected side (posteriorly)" This actually makes a lot of sense when you think about the forces involved. When the head is squished from the back the ear moves forward in contrast to when the head is pulled out of position by the closed suture and the ear gets pulled back too. A picture here is probably worth a thousand words (see figure 2 on this page).

This page gives a fairly good review of these concepts and a nice little table compairing the two diagnoses.

 

May 21, 2005
Growth Deficits and Attention-Deficit/Hyperactivity Disorder

It has been my experience in Family Practice, Pediatrics, and Psychiatry that many parents are concerned about the long-term side effects of psychopharmacologic treatment on their children with ADHD, especially in regard to growth.  The entry on the efficacy of Drug Holidays sparked my interest in this topic.  During my rotation in child psychiatry I was informed that the average difference in actual height and expected height after long term treatment of stimulant therapy for ADHD was an average loss of 1 1/2 inches.  The psychiatrist felt that this loss was minimal compared to the potential long term negative consequences not treating ADHD.  However, for many adolescents and parents the thought of a decreased growth potential was clearly not acceptable.  In order to ease the anxiety of parents and their children over this issue I have commonly seen practitioners choose to prescribe drug holidays to allow for catch up growth.

I was initially planning on looking for data adressing whether or not drug holidays are effective for catch up growth, but instead was suprised to find that recent research suggests that there is no difference in growth between ADHD treated subjects and controls http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=12728081&query_hl=4.  This data was consistent across both genders http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=8936912&query_hl=7

The authors of these two studies argued that some of the problems with the studies that came out in the 1970's, suggesting a decreased growth potential after stimulant treatment for patients with ADHD, was that the heights of the subjects studied were not corrected for age, parental height, or onset of puberty.   

One criticism that I have of the study on growth deficits in girls with ADHD was that it did not control for treatment.  The authors did not specify whether or not the treated subjects were all on the same medication, or even what class of medication that they were on (i.e. stimulant verses non-stimulant). 

An interesting finding of the two studies was that there is a difference between genders with ADHD before adolescence.  They found that males with ADHD were smaller than males without ADHD before adolescence, regardless of treatment.  One conclusion drawn from this data by the researchers was that the difference in height was a consequence of the pathology of the disease, not the medication. However, once again after adolescence there was no longer a difference in height between males treated for ADHD and males without treatment or ADHD.

 

May 20, 2005
Fibromyalgia

   Over the past week, several patients came into the office with a history of fibromyalgia.  Since it's one of the most common rheumatic complaints in outpatient offices, affecting up to 10% of the general population, here are some relevant clinical pearls...

   Fibromyalgia is seen most frequently in women, aged 20- 50 years, and has an unknown etiology.    Patients complain of chronic musculoskeletal aching pain and stiffness, frequently involving the entire body, but especially in the neck, shoulders, low back, and hips.  It is often associated with other conditions, including fatigue, sleep disorders, chronic headaches, subjective numbness, and IBS.  Physical exam is often normal, usually with no objective signs of inflammation and no lab abnormalities.  Therefore, it is primarily a diagnosis of exclusion. 

   The differential diagnosis includes RA, SLE, hypothyroidism, polymyositis, polymyalgia rheumatica, hypophosphatemia, and oncogenic osteomalacia.

   Treatment requires patient education and reassurance.  Studies have also shown a partial response to exercise and TCAs, while NSAIDS are generally ineffective. 


Multiple Sclerosis

A 36 year-old woman came to the office with complaints of weakness, numbness and some pain in her legs for 3 days.  She had been able to go to work and tolerate the pain, but lost complete control of her legs and fell at home today, prompting her father to bring her to the doctor's.  She states she has been well for the most part, with only a mild cold a couple of months ago and denies any recent trauma or injury or similar symptoms in the past.

In short, she is a healthy 36 year-old woman in no apparent distress and with no significant past medical history.  She does not take any medications.  Physical exam is mostly normal - she has normal patellar and posterior tibial deep tendon reflexes bilaterally (I thought slightly hyperreflexive patellar reflexes, but then what do I know, I'm just a med student) and proprioception and sensation is intact bilaterally.  Her upper extremities are normal.  When asked to stand up and walk, she has difficulty getting up and shuffles her feet with difficulty.  Romberg test was negative. 

The demographic factors (female of child-bearing age) and symptoms may point to multiple sclerosis (MS), although MS is marked by a waxing and waning of such neurological symptoms.  This may indeed be the patient's first "attack."  This table lists some common symptoms of MS.                                                          

A diagnosis of MS can be devastating for a patient and we therefore told her more work-up was necessary to figure out what exactly was going on. 

Differertial diagnoses include, but are not limited to: 

- Acute transverse myelitis (which can happen after a viral illness)

- Spinal cord compression cause by a tumor, herniated disc, abscess or stenosis

- Acute disseminated encephalomyelitis

- ALS

- Stroke

It is important to not attribute the symptoms to hysteria simply because the neurological symptoms seem vague. 

The two diagnoses highest on our list was MS and acute transverse myelitis, an autoimmune dysfunction that results in demyelination, which may also be one of the presenting signs of MS.  MRI is the best test to confirm MS along with a CSF IgG level and oligoclonal bands.  This study indicates that MS vs. acute transverse myelitis are relatively easily distinguishable based on clinical and laboratory features (I think this study lacks power, but it was relavant nevertheless).

MS usually affects quality of life rather than duration of life.  Long term therapies that help to prevent progression of the disease include cyclosporine, methotrexate, interferon, azathioprine and other immunomodulatory agents.  Acute exacerbations are treated with methylprednisone.


Don't hate me because I love women's health
So, women's health posting number 2...

I had a young female patient who came to the clinic for her annual gyn exam. She had previously been diagnosed and treated at her college health clinic for BV and was complaining now of a "yeast infection". 

She had previously identified herself to my preceptor as having only having sex with women and again asserted that she hadn't ever had a male partner.

I mentioned to my preceptor that I thought lesbians would have a greater risk of BV infections because of the nature of their sexual practices: digital/vaginal, dipital/rectal and oral sex.  However, after I said it I realized that I didn't have any proof to back up my assertion.  So, I searched the CDC website for information about lesbians and STIs and found this article. 

The article states that while research is generally lacking, BV is more common in women who have sex with women than heterosexual women.  Additionally, the rate of HPV in self described lesbians who had not previously had a male partner was 19%.  Not as high as young heterosexual women, but still a significant portion of the population at risk for cervical CA.

The take home message is that lesbians get STI and should be screened as frequently as straight patients.



Guaifenesin for Fibromyalgia?

Treatments for Fibromyalgia: 


     Last week in the office I encountered a middle aged woman who was being managed for fibromyalgia.  She was complaining of having chronic pain through out her body but especially in her legs and thighs.  On physical exam there was no inflammation or erythema to be found anywhere.  What did stand out was an exaggerated response of pain while I was palpating her calves and shins.  She also had problems with insomnia and IBS.  During her encounter with our physician she was asked if the guaifenesin protocol had worked for her and she said it had not, so the physician suggested that aside from exercising and working on her insomnia, the patient should try acupuncture treatments. 
     Intrigued by this guaifenesin protocol, which I could not find in my epocrates or up-to-date as a treatment for fibromyalgia,  I decided to do a little research on the web.   I did find a site that advocates the use of  guaifenesin as a possible treatment for fibromyalgia because it is supposed to help clear metabolic debris from the body.  As you know, guaifenesin, helps clear respiratory mucus from the body.  It is safe and has no side effects.  By taking a certain amount of guaifenesin daily and actually having a worsening of symptoms, the patients are actually supposed to feel better in the long run.  Unfortunately, I was unable to find any reliable studies supporting the use of guaifenesin for fibromyalgia.  The next day I asked the preceptor about the lack of good data for guaifenesin and fibromyalgia, and they said that since the cause of fibromyalgia is unknown and there is no consensus on the treatment, there was no harm in suggesting the guaifenesin treatment.  If it had helped some people, perhaps it would help this patient.
      Fibromyalgia is a chronic pain syndrome of unknown etiology.  There are many theories as to the cause of this such as a low pain threshold or altered pain processing in the brain.  Depression, insomnia, and chronic fatigue syndrome are often comorbidities.  Fibromyalgia is the second most common disorder seen by rheumatologists, but the majority of fibromyalgia patients are seen by general practitioners.  For a great overview and explanation of the classification for this disease check out this posting from the American Family Physician.
      As far as treatment modalities, there was an excellent meta-analysis, looking at studies for the optimal management of fibromyalgia.  It showed that there was strong evidence for efficacy with the use of amitriptyline and cyclobenzaprine.  These often help with sleep and overall wellbeing.  SSRI's, SNRI's, and Tramadol had modest efficacy.  For non-medical therapy, cardiovascular, aka aerobic exercise, patient education, and cognitive behavioral therapy had strong evidence to support them.  Acupuncture also had a moderate amount of efficacy.  The overall suggestions for management were as follows:
Step 1:     Confirm and explain the diagnosis.  Also evaluate and treat comorbidities.
Step 2: Trial with low dose tricyclic antidepressants or cyclobenzaprine.  Begin aerobic exercise program and/or refer for CBT
Step 3: Specialty referrals and/or other antidepressants. 

    Hope that this will help you with the management of your fibromyalgia patients because you will
be seeing many  of them in your practices.    
    P.S.  The complete meta analysis article for Management of Fibromyalgia Syndrome can be found in JAMA, November 17, 2004 - Volume 292, No. 19. 

May 19, 2005
My sweaters won't button anymore

Middle aged, overweight woman presented to the office because her friends urged her to check out the "lump in her throat". The patient is single and lives alone, but had become aware of this golf ball size mass located right under her chin that seemed to have appeared a year ago, but did not bother her at all. She would have not even come in today, if not for the urgings of her friends. She did claim that she was no longer to button some of her winter sweaters, but there was no pain, no change in her voice, no cough, no problems swallowing, and she felt this finding was simply old skin sagging---like a "waddle".

High on my differential was a goiter. A goiter is an enlargement of the thyroid gland, which usually grows outward, therefore not compressing the trachea or great vessels in the substernal neck area. Asymmetric or posterior extension can cause obstructive symptoms, however growth and clinical manifestations are usually insidious. Incidence is about 1 in 5000, however, it increases to about 1 in 2000 for women over age 45 years. Most are benign, however one study noted a 10% incidence of thyroid cancer in substernal goiters. Goiters can present as visible masses, with common complaints of exertional dyspnea and cough depending on the size, or less commonly with hoarseness, symptoms of phrenic nerve paralysis, horner's syndrome, superior vena cava syndrome, and jugular vein compression.   

I was about ready to propose checking a TSH, when the attending popped in the room and said, "Whoa! Look at that thyroglossal duct cyst!"

A thyroglossal duct cyst is a rare but occasional cause of a benign midline neck mass, and the most common form of congenital cyst in the neck. It is an epithelial remnant of the thyroglossal tract, characteristically located midline at the level of the thyrohyoid membrane, closely associated with the hyoid bone. (A brief review of thyroid embryology can be found in this link in the first 2 sections.) Although most patients with thyroglossal duct cysts are children or adolescents, up to one third are not diagnosed until ages above 20. The tract may lie dormant for years until some stimulus leads to cystic dilatation. The persistent duct can promote oral secretions, putting it at higher risk for infection. This infection can cause enlargement of the cyst, with spontaneous drainage occurs in some instances. Males and females are equally affected. Familial occurrence of thyroglossal duct cysts has been reported, but is extremely rare, a total of 21 cases having been reported. An article speaking to the genetic component of thyroid anomalies in asymptomatic relatives of patients with congenital hypothyroidism is presented here to demonstrate possible familial links. Also, some pictures of location and treatment of thyroglossal duct cysts can be found here.

Thus, although the patient was an overweight female adult, with no history of being diagnosed with a thyroglossal duct cyst in childhood, the presentation of a palpable, asymptomatic midline neck mass at the level of the hyoid bone that moved with swallowing, versus substernal in location points more towards the embryological remnant as culprit. Diagnosis is usually made clinically as the mass moves upward when the tongue is extended and with swallowing because of its connection to the base of the tongue.  However, it is important to determine if the thyroglossal duct cyst contains thyroid tissues, and we ordered a TSH (to rule out hypo/hyperthyroidism), ultrasound (to view adjacent muscle, blood vessels, tissues, and organs), and a thyroid scan (to locate thyroid tissue and any abnormalities of the gland itself). We recommended definitive surgery of the cyst and path's tract and branches if and when the diagnosis is confirmed.

 


Flaxseed vs. Fishoil

Recently I was counseling a pt with dyslipidemia, who wanted to try diet and exercise, that they might try fish oil supplementation for the omega three fat content. At which point The MD I was working with interjected that flaxseed may be a better choice, so I decided to take a closer look.

As discussed in a posting above, fish oil can be beneficial both in the lipid profile and subsequent prevention of cardiovascular disease, i.e. in the outcome that matters avoiding heart attack. Similarly flaxseed has been shown to have a beneficial role in dyslipidemia. (see this citation from Nutrition Review 2004). These findings may be due to the omega three fat content in flaxseed. However fishoil contains EPA and DHA while flaxseed contains precursor fat ALA and other purportedly beneficial stuff such as lignans and phytoestrogen.

Flaxseed has the highest levels of ALA known of any food source. If you are interested to read in some biased but useful information from the flaxcouncil about the contents of flaxseed check out this pdf.

There is some question however whether the ALA is in fact converted to EPA and DHA (see this citation).

Given this it may turn out that flaxseed and fishoil are working in slightly different ways and that their effects are independent. So for the time being at least I will advocate a little helping of both.

May 16, 2005
Drug Holidays for ADHD?

Earlier this week, a 10 year old boy came into the clinic with his father for a medication checkup for his Straterra.  The boy was initially diagnosed with ADHD by his primary care physician after his father reported behavioral problems at school and home.  (Click here for more information on ADHD.)  Particularly, at home, the child was constantly defying his parents by staying up late at night, agitating his sister, and destroying things at home.  At school, his behavior was no better - with sudden outbursts in the classroom and difficulty paying attention to the teacher.  Ultimately, his lack of control had affected adversely at home and at school, especially in terms of his grades.

Over the last year, the parents and the doctor have tried different anti-ADHD drugs to find a balance that would offer a way to "control" his behavior.  Finally, with the administration of Strattera, over the last 3 months, the parents have noticed a significant improvement in the behavior of the child.  Most particularly telling has been his improvement in school.  His grades had improved and his teachers have written several notes commenting on the amazing progress he has made.

As the school year winds down, the child's dad has become particularly interested in taking the child off the medication during the summertime - placing him on a "drug holiday."

The number one reason that a doctor or parent would suggest a drug holiday is the side effects profile of the drugs being used.  (The side effects of the 4 major drugs used for ADHD are given here.)  However, other factors, such as the parents' desire to remove medication or the desire to see the child cope without an "artificial" means, are great motivating factors to remove the drug, especially on weekends and during summer vacation.

Although parents are eager to stop the drugs, research suggests that drug holidays are not recommended.  In fact, they may adversely impact older children.  Therefore, it seems that long-term treatment may be the most effective way of treating this disease.  This evidence requires practitioners to state to parents and children that treating ADHD is a continuing process that does not get "cured" from just a few months.  Although behavior may improve after some time, medications over longer duration of time will provide the framework by which the child may improve both neurologically and behaviorally (see article subheading entitled, "Effects of Long Term Treatment").


Seroma - What is it?

I recently had a patient ask to go over her pathology results from a recent breast biopsy.  This young women explained that she had several breast lumps removed , found to be "not cancer", but since this time the surgical site have continued "to leak."  She thought her breasts were infected and presented to her physicians' office to have them looked at.  A biopsy was done and the results stated a benign tumor called a seroma.  The patient asked me to explain this to her and as I began  realized I did not know what a seroma truly was. 

Harrisons was no help as seroma is not in the glossary and the section on nonmalignant tumors did not offer much if anything.  A quick google search lead to my information and my comforting explanation to the patient. 

Briefly, a seroma is a collection of serum (yellowish fluid of blood after the removal of RBC's and WBC's.)  This collection usually occurs at the site of a surgical incision where lymphatic circulation has been compromised thus fluid drainage from the wound area is deficient. Untreated most seromas will resolve on there own in several months time.  Treatment is elementary, involving insertion of drains to remove the collecting fluid.

The following website is a medical research page directed at animal welfare research but offers the best explanation and indepth information of a seroma that I have found.

It is interesting that my patient repeatedly spoke or her breast as infected but this is quite false.  An abscess, quite similar but different than a seroma, is a collection of serum with addition of WBCs, bacteria, and degenerate products of both.  A referral was done to a breast surgeon in the area and informed of the likely insertion of drainage tubes. 
 


A Donkey dressed in Zebra's Clothng
(if there's too much damn typing here just go look at impression and plan for some asthma management...)

    A 25 year-old Female with chronic asthma presents for follow-up of a continuing intermittent feeling of eye-fatigue, blurryness, and dizzyness.
    The patient first noticed this almost a month ago, when she was having the heavy eyelid sensation every day.  She went to a walk-in clinic where she ws diagnosed with sinusitis and given a 10-day course of Omnicef.  It is now resolving, only happening once or twice a week.

    The patient recently had a fairly severe exacerbation of her asthma, the worst ever, and went to the emergency room - 4 days after her visit to the walk-in.  She was given a nebulizer treatment and sent home.  She was seen by us the next day and given a 4-day prednisone taper which worked very well and cleared her chest right up.  She is currently on Advair but doesn't feel that it is helping.  Her chest is still tight at night.  She has no wheeze now but reports one every morning.  Also, every morning she wakes up with muscle pain in her arms, shoulders, and back.  This improves with a shower and stretching, and is resolved by early-afternoon.

    In the interim an opthalmologist has given her a clean bill of health from his perspective (which is to say she doesn't need glasses, uhh thanks dude).  The patient is also complaining of all-over muscle pain for several weeks, however she denies any double vision, tunnel vision, headaches, or loss of consiousness.

    On physical exam this is a pleasant young woman in good apparent health, and no acute distress.  Her lungs were CTA bilaterally and no wheezes, rales, or rhonchi were appreciable.  She has a cough with scant clear sputum production.  During this visit we had her perform a trial of spirometry.  Her FEV was 64% of predicted and her FEV1 was 76% of predicted.  She is snuffling her nose and appears to still be suffering some post-nasal drip.  There is minimal mucus discharge on the posterior wall of her oropharynx.

Impression and Plan:

    She's got asthma, real bad, and it's poorly controlled.  From a further history we found out that she lives in a basemant apartment and just noticed some mold on one wall.  The landlord promptly painted over the mold after she pointed it out (nice slumlord, good slumlord).  She also just bought a brand new feather comforter.  We also did a quick chart review and found that theis was the third year in a row that she was showing up around April with these complaints.  So,
  1. Sinusitis:  This wasn't resolved with Omnicef, a cephalosporin that inhibits cell wall synthesis, which is inactive against MRSA and organisms resistant to penicillins.  We gave her Bactrim DS (1 tab PO Bid, 24 days) for broad butt-kicking URI coverage.
  2. Acute Asthma: This obviously needs to be better controlled.  We increased Advair to 500/50 and added Allegra 180 D and Singulair (10mg PO QDay).  Advair has a corticosteroid (fluticasone) component and a B2-adrenergic bronchodialtor (salmeterol).  Allegra adds a H1-histamine receptor antagonist (fexofenadine).  Singulair is a leukotriene receptor antagonist to slow down them mast cells.
  3. Chronic Asthma:  Move out of the basement;  get a HEPA filter;  sorry about that expensive new comforter (actually you can buy hypoallergenic duvet covers)...  We advised her to come in in March next year, before her asthma acts up, so that we can address this prophylactically.
  4. Chief complaint:  The symptoms of fatigue, heavy eyelids, and blurry vision, along with the myalgias will improve once we get the combination of sinusitis and asthma under control.  This was ultimately my point for using this case.  The symotoms could have pointed to just about anything, however common things being common,...  We will follow up with her in a month to see how she's doing.
ps. yeah that stuff about the mold and the down comforter belongs in the HPI not the I&P...  I know that... don't you think I know that? Sheesh.


The things we do for beauty

A patient came to the office this week with a question about a scar, she wondered what she could do so the scar was less noticeable.  My preceptor suggested that time would heal all wounds, so to speak, and 4-6 months was required to see maximum cosmetic healing.  He also mentioned Vitamin E or aloe as possible adjunct therapy.  I brought up Mederma, which I used with good result myself, and have heard other physicians recommend.  Mederma is moderately expensive ($29/50g tube) even though it is available OTC and my preceptor wanted to know what the evidence was to support it's use.

I could only find one RCT on Pubmed that tested the product. The Mederma website lists a couple of studies, but I could not get to the full text to determine whether I would consider them valid.  I did find one review article that suggested the evidence was lacking for Mederma and other natural cream products.  They found that silicone patches or silicone applied to scars daily had reasonable effect.  Interestingly, Vitamin E has not been shown to improve the outcome of scars and in many cases can illicit a dermatitis.

Given my research, I suppose that I will not be able to recommend Mederma to patients, though I am not planning on throwing away my own tube.

In response to the comments: This patient's scars were three hypopigmented fully healed puncture wounds, ~1x1 mm each, and level with the surrounding skin.  Not anything I would ever be concerned about medically or cosmetically, but it was a possible litigation situation since it was a bite from the neighbor's dog, and her father was concerned she would be upset with the scars later in life.

May 15, 2005
Rheumatoid arthritis

I have seen several patients in the past few weeks with rheumatoid arthritis and although the patients I saw had already been diagnosed years before, I was interested in the clinical evaluation of a patient with suspected arthritis, and the best way to differentiate among the different types.

The history is an important part of the process, as always. The age and sex of the patient may first make certain diagnoses more or less likely. Also, the pattern of joint involvement is important - symmetry, large vs. small joints, locations, and migratory disease. Finding out how long the pain has been going on and whether the pain is worse in the morning and gets better with activity (inflammatory arthritis) or if there is no pain at rest and is precipitated by activity (osteoarthritis and nonarthritic musculoskeletal problems). Constitutional symptoms may be present in autoimmune disease and infection.

On physical exam, the joints in question must be examined for active and passive range of motion and also for joint deformity or effusion. The patterns of joint involvement is very important, as many diseases have very specific patterns. Rheumatoid arthritis almost always presents as involvement of the wrist and MCP joints, which is rare in osteoarthritis. The distal interphalangeal joints are almost always involved in inflammatory osteoarthritis and psoriasis. Ankylosing spondylitis and other spondyloarthropathies may be found by assesssing the axial skeleton.

Laboratory testing should involve synovial fluid analysis, because this helps to distinguish inflammatory processes from non-inflammatory. Patients with RA would likely have > 10,000 WBCs and a predominance of PMNs.  Rheumatoid factor is found in the blood of 80-90% of patients with RA, but also in many other rheumatic diseases, chronic infection and malignancy. Thus, the presence of rheumatoid factor is neither necessary nor sufficient to make the diagnosis of RA.

Radiographic studies in patients with RA would show erosive disease of the small joints of the wrist, the MCP joints, the PIP joints, the ulnar styloid and the small joints of the foot. The erosions seen in erosive psoriatic arthritis, however, are described as "telescoping of joints" or "pencil in cup" lesions.

Treatment for RA is based on maintaining function of the joints and decreasing the pain. NSAIDS are helpful for the pain, but do not act to reverse or slow the underlying process. Another class of drugs being used are called disease modifying antirheumatic drugs (DMARDs) or also slow-acting antirheumatic drugs (SAARDs), such as methotrexate, hydroxychloroquine, cyclosporine and also oral gold and gold salts. Methotrexate is the most widely used of this class, because it is has relatively low toxicity and is the fastest to act of this class. Corticosteroids can also be used to decrease inflammation, but should be used only when necessary and even then in low doses.

Physical therapy and occupational therapy can help these patients to improve muscle strength and maintain joint mobility.

This is a good website that I found for patient eduation on rheumatoid arthritis, but my computer hates me and won't let me hyperlink it, so I'll just give you the URL. It's http://www.medicinenet.com/rheumatoid_arthritis/article.htm 

Sorry about that. Hope it works.


Marijuana Use and Panic Attacks
 We had a tearful young woman come into the office this afternoon who was very distraught.  She complained of panic attacks that began 4 days prior and were not coming with any set frequency but did not exceed 4 per day.  The first attack presented itself while she was smoking marijuana of which she admits addiction and use of at least one joint per day for the last 3 years.  This has been an escalating habit up to $100/week.  She denies the use of other drugs or alcohol.  The attacks are debilitating in the sense that she is unable to leave her home and has not been to work in three days for fear of something happening to her.

The articles that I researched, including an Up To Date article on frequent marijuana use point to paranoia associated with occasional use and panic attacks, although rare, with chronic abuse such as in our patient.  One patient went to the emergency department many times with palpitations, diaphoresis, and sinus tachycardia.  He was diagnosed with panic disorder without agoraphobia.

The previous patient sounds a lot like ours.  A lengthy conversation revealed no significant changes in our patient's life but that she had been "down" for a number of weeks for no apparent reason. We decided to try a week of Prozac to see if it alleviates what my attending believes to be underlying depression manifesting in these panic attacks.  She is to call back in one week or prn if she does not feel the depression or panic attacks are improving.

Just another question you should be screening for in people with cp, tachycardia and diaphoresis.

Article abstract 1

Article abstract 2


Dementia

   An ederly diabetic dialysis patient presented with intermittent bilateral lower back pain, rated at 6/ 10.  She was unable to further describe the type of pain, elucidate when the pain began, describe anything that made the pain better or worse, and could not remember if she had tried any medication with/ without relief.  Fortunately, her husband accompanied her on her visit and was able to give a little more insight into the complaint.  This incident highlights the complexities in evaluating and treating dementia patients.

   Since an adequate history is often difficult to attain in these patients, physical exam becomes very important.  PE should not only be focused on the chief complaint, but should also include a mental status and neurological exam.  On exam, it is also important to identify other problems that may also interfere with the patient's ADL's, including hearing/ vision loss, orthopedic problems, etc.

   Dementia is a very common finding in family medicine offices, with a prevalence of 50% after the age of 85.  Although most cases of dementia are irreversible, it is important to consider the full differential since some causes are reversible.  The differential includes Alzheimer's dementia (about 50% of cases), multi- infarct dementia, Lewy body dementia, depression, normal pressure hydrocephalus, thyroid disorders, B12/ folate deficiencies, syphilis, HIV, medications, MS, Parkinson's, Huntington's, Down's, and intoxication. 

   Diagnostic evaluation should focus on recognizing potentially treatable causes of dementia and identifying any co- existing illness that may also be contributing.  Recommended tests include CBC, SED rate, electrolytes, calcium, albumin, BUN, creatinine, LFTs, TSH, Vit B12/ folate, and urinalysis.  Also useful are hearing and vision tests, CXR, EKG, and neuroimaging.

  Outside of the medical management of dementia patients, it is of utmost importance to educate the family and caregivers about how best to create a safe, familiar environment for the patients.  Due to the incredible stress of caregivers, they also need to be informed of local support groups .


Rosacea

We had a patient call the office for a refill on her prescription of Metrogel (topical metronidazole) that she uses for treatment of her rosacea.  In discussing this with my preceptor I 1) wondered why an antibiotic that is usually used for anaerobes would be effective and 2) I didn't know a that much about rosacea even though I've seen a few patients with the skin disease who presented for different complaints.

Rosacea is a common, but often overlooked, skin condition of uncertain etiology that can lead to significant facial disfigurement, ocular complications, and severe emotional distress.  I found it interesting in my research that although the exact etitology of the disease remains debated, the primary first line treament is various classes of antibiotics, including oral antibiotics, such as tetracycline, doxycycline, and metronidazole  as well as topical metronidazole (cream [MetroCream] or gel [MetroGel])

I thought the article I linked above was a good overview of diagnosing, treating and most  importantly recognizing this disease that can cause serious disfiguriement in adults. Hope it helps, I'm sure you guys have seen patients with this disease too.

 


Hypertension and the DASH Diet

A pt in her low 30s came to the office for a BP check.  She has had BPs in the 140-150s/80-90s.  She was obese, I forget the BMI, but remember she was somewhere around 35.  She has tried to lose weight through Slim Fast (a shake for breakfast and lunch, and then a "sensible dinner").  She has lost around 10 pounds over the past 2mo, but we discussed how this is a difficult diet to keep up for the long term. 

The physician came in and agreed that we needed to teach her healthier eating habits which she could keep up for the rest of her life.  She recommended the DASH diet (Dietary Approaches to Stop Hypertension).  This is a diet by the NHLBI that is low in saturated fat, cholesterol, and total fat, and suggests eating more fruits, veggies, and lowfat dairy foods.  It is low in red meat and sweets, but suggests eating more whole grains, fish, poultry and nuts.  Clicking on the link above gives you a great pdf file that you can print out and give to your pt (our pt was very excited to get the info!). 

What is interesting about the DASH diet, is it was not designed to decrease weight, but to lower BP.  Studies have shown that the DASH diet does lower BP and there is a recent review article which discusses some of these studies.  The DASH pt handout does have some suggestions on how to modify the diet to help decrease total caloric intake (to lose weight).  Also, it should be noted that the DASH diet with a behavioral intervention was shown to reduce systolic BP by only 4.3mmHg.  This is helpful, but our pt was hoping for a larger decrease in BP.

We discussed the importance of lowering her total caloric intake (she was eating bags of chips for dinner!).  Then went over the DASH pt handout with her to help her understand how she could change her diet and still have it fit into her busy lifestyle. 

We started our patient on HCTZ in addition to putting her on the DASH diet.  A 4.3mmHg reduction was just not enough for us or the patient and she was acceptable to the idea of taking medication to help her lower her BP.  Obviously, our pt wanted to decrease her risk or morbidity and mortality associated with obesity and HTN, but at this point she just wanted something to help her lower her BP and help lose weight.  She didn't need data on how this will extend her life, she already assumed that it would.

It was asked what she does for exercise...Actually, the reason she came in for a BP check was because she started a new exercise program and felt her BP was going way too high during and after her workouts with a trainer.  This probably wasn't the case, but it seemed that she was over-exerting herself for an obese woman who never exercised before.  She actually stopped going to the gym because of this.  This is something we need to mention to our pts, it is important to start out slow with exercise because not only can they get injured, but if it is too difficult for them, they will only get discouraged.  Starting with 5-10min a day and working up is a good way to keep them motivated.


Headache: therapies for migraine

A woman in her thirties presents with chief complaint of peri-menstrual migraine headaches.  She is requesting medication she can take at onset of migraine, and also wants to know of alternative treatment and prophylaxis options. 

The triptan class of medications has been shown to be effective in treating migraine headaches; this article suggests that rizatriptan taken via nasal spray offers more rapid absorption compared to the oral route. Therefore, this option was suggested to the patient as a way to provide faster relief in the face of an acute migraine.  In addition, a new fast disintegrating/rapid release formulation of sumatriptan has been developed which can be used in the acute treatment of migraine so patients can return more rapidly to normal functioning.

Alternative therapies for migraine have also been researched, including acupuncture and herbal remedies such as fever-few.  Acupuncture, in this study, was found to be no more effective than sham acupuncture in reducing migraine headaches.  But this article analyzes evidence-based information regarding alternative prophylactic treatment of migraine, and it finds that current clinical data supports the use of fever-few, butterbur, magnesium, and riboflavin in migraine prophylaxis. 

Studies are limited, and more rigorous methodologies and larger sample sizes are needed to further support the safe and effective use of these alternative treatments.  It is important for us to be aware of these alternative therapies to appropriately advise our patients. 

 


Heel pain

A 52 year-old obese female presented to the office for treatment of heel pain of her right foot.  The pain had started a few weeks ago and is only mildly relieved by Tylenol.  She has been working at a supermarket for over a year now, where she is on her feet for hours, but reports that the heel pain started recently.  She does not recall any recent injuries or increase in activity.  She is otherwise healthy, with her hypertension and diabetes well managed with medication, diet and exercise.  Physical exam revealed tenderness of the plantar surface of the right heel and foot.

Diagnosis: plantar fasciitis 

Heel pain is a common orthopedic complaint, and plantar fasciitis is the most common cause.  Plantar fasciitis is, not surprisingly, an inflammation of the plantar fascia resulting in degenerative changes.  The plantar fascia runs from the tuberosity of the calcaneus to the five toes and provides arch support.  Classically, patients complain of pain with the first few steps in the morning.  However, some may complain of pain only at the beginning of certain activities or, in severe cases, worse pain at the end of the day.  A characteristic finding on examination is local point tenderness along the fascia from heel to forefoot while dorsiflexing the patient's toes to pull the plantar fascia taut.  Other diagnostic testing is not necessary, although an x-ray may reveal a heel spur, which is often seen in conjunction with plantar fasciitis, but is not the cause of the pain (plantar fasciitis is commonly referred to as "heel spurs," which is a misnomer).

Differential diagnoses include: 

- Posterior tibial nerve entrapment (tarsal tunnel syndrome) - parasthesia, numbness

- Ruptures plantar fascia - sudden onset of pain, ecchymosis

- Bone pain from stress fracture of calcaneus - pain increases with weight bearing

- Bone pain due to osteomyelitis or neoplasm - constant pain with nocturnal worsening, MRI is diagnostic

- Posterior tibialis tendonitis - tenderness along course of tendon

- Painful heel pad syndrome - seen in marathon runners, pain localized to heel pad, not along plantar fascia, no increase in pain with dorsiflexion of toes     

 There are many risk factors for plantar fasciitis, over-use being more common than functional or anatomical risk factors.  Functional risk factors include tightness and weakness of the gastrocnemius, soleus, Achilles tendon and intrinsic foot muscles.  Some anatomical risk factors are pes planus (flat feet), pes cavus (high arches) and overpronation.  Over-use is seen in athletes, such as runners and ballet dancers, as well as those who stand on their feet for long hours.  Obesity is also a risk factor simply because of the amount of weight the arches must bear.  

Eighty percent of cases resolve completely in six to 18 months with rest, ice packs, ibuprofen and improvement of modifiable factors, such as weight loss.  Wearing properly padded shoes with good arch support, and exercises, such as calf-plantar fascia stretches, foot/ankle circles and toe curls, will also aid in improvement.  If these conservative therapies fail, cortisone injections are also effective, but carry a 10% risk of plantar fascia rupture and fat pad atrophy.  Custom made orthotics may also be helpful in difficult cases.  Surgery (plantar fasciotomy/fasciectomy) is reserved for the most recalcitrant cases (2-5%), but has a 70-90% success rate.  I must note, however, that there is very little data regarding the effectiveness of many plantar fasciitis treatment modalities. 

This article provides a link to a pamphlet that you can print out for patients, as well as having great information for providers.  
 
 


Mucha-Habermann

Patient is a young boy presents with a 3 weeks history of a papules rash on his back, trunk, and thigh.  Rash is not pruritic and patient has no systemic symptoms of fever, diarrhea, nausea/vomiting.  Patient is not taking any medication and is up to date with his immunization.  Patient has no recent illness or sick contact and no recent travel history.  There were no physical exam finding except for the rash.  A presumptive diagnose of Mucha-Habermann disease was made.  Mucha-Habermann or pityriasis lichenoides is a rare skin disorder that is self-limited.  It is of unknown etiology and can present as an acute or chronic condition.  Patient was referred to a dermatologist for a possible punch/shave biopsy to confirm the diagnosis.


Abnormal DRE

Man in his 50's came in for a full physical.  He hadn't seen a physician in over 5 years because he hadn't been sick but his wife made him come in now.

Quick and dirty relevant info:  PMHx-No surgeries/hospitalizations.  Did have a normal colonoscopy in 2001.  Fam Hx-HTN on both sides of family, some uncles died of some kind of cancers (he didn't know exactly).  No meds.  Social- pack a day smoker for 40+ years.  ROS:  Some SOB with exertion. 

PEx:  Normal except for the DRE.  http://www.nlm.nih.gov/medlineplus/ency/article/007069.htm

My 2nd DRE ever, but there were 2 soft, mobile pea sized bumps on the walls of the rectum.  I don't think they were on the prostate.  Hemoccult was negative.  What the heck were they?!?! 

Differential for abnormal findings on DRE:  hemorrhoids, polyps, or abscesses. http://my.webmd.com/hw/colorectal_cancer/hw4404.asp

He wasn't referred for a colonoscopy at that time because of the prior normal history less than 5 years ago.  He did  get his blood drawn after the exam:  CBC, cholesterol, PSA.  My physician said that common things being common, the lumps were probably hemorrhoids.  He'd had a normal colonoscopy in the past and he wasn't febrile or complaining of pain, so the polyps and abscess were unlikely. 


Secondary Amenorrhea and Depo Provera

This past week I saw a patient with complaints of amenorrhea.  The patient had been on Depo Provera for approximately three years, which is longer than the current recommendation of two years due to bone density issues.  Her last shot was in the early spring of 2004.  The patient's menstrual cycle had resumed in late summer of 2004 - about 6 months after her last shot of Depo Provera.  The patient's menstrual cycle had been normal for several months and then had stopped in early 2005.  The patient's menstrual cycle prior to and after the Depo Provera had been about 28 days.  Her LMP was normal but had occurred about 70 days prior to this visit.  The patient admitted sexual intercourse without barrier or other forms of protection a few weeks after her LMP but none since then.    

The patient's ROS was negative.  On physical exam the patient was overweight, VS were normal, with no abdominal or suprapubic tenderness.  The remainder of the exam was unremarkable.  The urine beta-HCG was negative

There are many methods to work up amenorrhea.  First, it should be noted that every year approximately 5 percent of menstruating U.S. women experience 3 months of secondary amenorrhea.  Lab studies should start with a beta-HCG which was done.  Other tests and the order in which to perform them, depends on the history and physical.  The levels of prolactin, FSH, LH, estradiol, testosterone, or TSH can be measured and inappropriate levels of these hormones are known causes of amenorrhea.  Imaging studies such as ovarian ultrasound or pituitary/hypothalamic MRI can be helpful.  Other tests such as the progesterone withdrawal test can also be used.  This test although not recommended by the authors of this paper was prescribed for this patient.  A positive test, i.e. bleeding after progesterone withdrawal, indicates that the ovaries are producing estrogen and the uterus is responsive to estrogen and progesterone.  Furthermore, a positive test indicates that there is a failure to menstruate due to a failure to ovulate.  This test was not recommended because a negative or positive test is not definitive and may delay "diagnosis of potentially serious disorders."

The recommended algorithm for evaluation of secondary amenorrhea is as follows: 1.) pregnancy test 2.) TSH and prolactin levels  3.) Progestin challenge  4.)  FSH and LH  5.)  MRI. 

In this patient, it was suspected that although her menstrual cycle had resumed since her last injection of Depo Provera, the Depo Provera may have still have been affecting her menstrual cycle and causing the secondary amenorrhea.  Additionally, the patient is overweight, which is known to cause amenorrhea and menstrual cycle dysfunction.  Follow up was scheduled for two weeks following the progesterone withdrawal.  

 

The helpful links:

http://www.emedicine.com/ped/topic2779.htm

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15589863

http://www.fda.gov/bbs/topics/ANSWERS/2004/ANS01325.html

http://www.emedicine.com/med/topic117.htm

http://www.amcstudents.com


PCOS

A young woman came in for a routine physical with no complaints.  She has had no major illnesses, no significant past medical history, and no surgical history.  When asked about her menstrual cycles, she said that they were heavy at times and very irregular.  Some months there was two weeks inbetween cycles and other times she would not have a period for 2-3 months.  She had never really given this much thought and had not discussed this with her mother.  She began menstruating at age 11 and is now 17.  Her only other complaint was that she wanted to lose some weight.  She denies regular exercise and admits to a diet consisting of daily soda, some fast food, minimal fruits and vegetables, and candy/cookies.  

On physical exam she is obese, displays mild hirtuism on the upper lip, and has evidence of some acne on her face.  She does not have acanthosis nigrans.  The rest of the PE is benign. 

We suggested several things at the conclusion of her exam: take some blood to test for androgen levels (total testosterone, free testosterone), cortisol levels, random glucose, and thyroind function tests and  refer her to a nutritionist for a review of her diet to help her with weight loss.  As far as she knows, there are no other family members that have been diagnosed with PCOS.

Her history and PE findings suggest PCOS.  Classic PCOS has been defined as an association of amenorrhea with polycystic ovaries and, variably, hirsutism and/or obesity.  A good webiste that has some of the latest information on PCOS for both doctors and patients is  http://www.obgyn.net/pcos/pcos.asp . 

Although there is no cure for PCOS, there have been some advances in trying to treat patients with this syndrome.  Typically the first line treatment is OCPs to control the ovulatory dysfunction and dermatological manifestations of PCOS.  GnRH agonists can be given to those patients who can not tolerate OCPs.  Hyperinsulinemia and insulin resistence is common in patients with PCOS causing both weight gain and contributing to the hypersecretion of androgens. Metformin has been studied and appears to have some utility in the management of weight loss by suppressing appetite. 

The results of this patient's labs are currently pending.

May 14, 2005
Mucoid Cyst

An elderly female came in with a nodule distal to her DIP joint.  She reported that the nodule was painless and denied any oozing.  The only thing she could remember was banging her finger a few times in the same place.  Upon further questioning, she also rememberred gardening several times before the nodule appeared, but denied any punctures from thorns.  On physical exam, she was afebrile and the nodule was superficial, non-erythematous, mobile, and non-purrulent.  It had the appearance of a blister. 

My differential included sporotrichosis because of the gardening history.  I excluded rheumatoid arthritis and other bony changes, because the nodule was more superficial.

At this point, we decided to drain the cyst with a needle.  Upon its puncture, a clear, mucinous fluid oozed out.  No further treatment was needed at this time.

After seeing the mucinous drainage, the diagnosis of mucinous cyst was made.  It probably developed due to repeated trauma to her finger.  It was explained to me that Sporotrichosis was ruled out because of the lack of inflammation.

May 13, 2005
Migraine in Children

Migraine in Children

A 14 y/o male patient presented in the clinic with a history of a sore throat in the morning, followed by a headache, and cyclical vomiting during a period of one day.  This pattern also occurred in the late fall of 2004.  The only other positive symptoms found during a complete history and review of symptoms was that during these episodes he was under more stress than usual at school, and that he was most comfortable during these episodes in a dark, quiet room during these periods.  In addition, his mother took his temperature and found it slightly elevated at 99. The only pertinent positive on physical examination was 2+ tonsilar erythema.  The patient was given a presumptive diagnosis of a migraine.  

After seeing this interesting presentation of a migraine I was curious as to whether or not a sore throat was possibly an atypical presentation of a migraine aura.  Upon reviewing the literature I found that an acute onset migraine in most children is accompanied with an upper respiratory tract infection. http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=10759922

These results correspond with the patient's history of a recent increase in stress and a sore throat.  Stress is associated with both an increased risk of an infection and a migraine.  It is very possible that he had a low grade URI.  In addition, he brought a progress note from a visit to another clinic.  The Nurse Practitioner clearly noted that the patient looked physically unwell after the episode which also supports this theory.  On both occasions the headache, sore throat, and vomitting cleared up after one day but were followed by a short period of fatigue.  It would be interesting to ask him on another visit if he commonly has these symptoms with upper respiratory infections.


Treadmill Stress Test

Treadmill stress tests are performed every Wednesday morning at one of the outpatient clinics. In the past two years I have worked at several Family Practice clinics, each routinely conducted treadmill stress test. A review of treadmill testing is provided at the American Academy of Family Physicians website (you can read the article if you like, but the tables are self explanatory and tell you most of what you need to know in a fraction of the time).

The treadmill test requires individuals to walk or run on a treadmill that inclines to a slope of 14-16%. Therefore, any patient seeking a treadmill test needs to be able to walk and have relatively good balance. If this is not the case, tests such as and adenosine-thallium or dobutamine stress test are more applicable to these patients. These tests mimic a treadmill test by stimulating the heart, but have no exercise component. The patient's history is taken to determine a pre-test probability of coronary artery disease (charts are available for this). The pre-test probability is determined by gender, age, and symptoms (typical angina, atypical angina). The patient's max heart rate is also determined (220-age). The desired goal is to reach 85% of the patients max heart rate during the test.

Indications for a treadmill stress test (Table 2) include symptoms of coronary artery disease, presence of typical anginal symptoms of chest pressure or pain with or without exercise, shortness of breath or dyspnea with exertion, following surgical intervention for coronary artery disease, or after an MI.

Absolute contraindications (Table 5) include acute MI, unstable angina, acute cardiac inflammation (pericarditis, endocarditis, myocarditis), severe CHF, uncontrolled ventricular arrhythmias, symptomatic supraventricular arrhythmias, high-grade block, severe hypertension (systolic pressure >200 mm Hg or diastolic >110 mm Hg), active thrombolic process, and poor candidate for exercise. As previously mentioned the treadmill inclines to a slope of 14-16%. Go to the gym and try this out. Regarding the blood pressure limits one needs to remember that many of these patients have HTN for which they are receiving medication. Since b-blockers and Ca++ channel blockers affect the test, patients are counseled to go off these medications prior to the test. Due to this a patient showed up this week with a BP of 248/138.

What to look for, the indications of a positive test (Table 8 and Figure 1). This can be divided into clinical findings and ECG findings. Clinical symptoms suggesting ischemia include exercise induced hypotension, exercise induced angina, or the appearance of S3, S4, or murmurs. Figure 1 illustrates some positive ECG findings. In general one looks for ST segment changes, typically ST segment depressions. Many clinicians use a 1mm depression as the cut off for a positive result. However, there are some who recommend using a depression of 0.5mm as a positive result. The argument is that this increases the sensitivity of the test. However, we all know from EBHC that this in turn will decrease the specificity.

May 12, 2005
Otitis media in 6 yr old

Mom brought 6 yo pt in who had developed acute onset right ear pain in 2 days.  The pain is intermittent, and fleeting at times. The patient had no fevers, no other constitutional symptoms, and has otherwise been a healthy 6 yo. On physical exam, both tympanic membranes were erythematous and the right side seemed to bulge more than the left, but without effusion, and negative insufflation. No other positives on physical exam or review of systems.  Would you treat?  I said "yes".  American Academy of Pediatrics said "no".   

I thought this a useful lesson to share.  With the concerning over-prescription of antibiotics, and different perspectives of pediatric care, AAP makes a valid and potentially good argument for one to bring up with office staff and attendings. Their management plan and reasoning is summarized below, but the link with complete recommendations is found here.

Age

Certain Diagnosis

Uncertain Diagnosis


 

<6 mo

Antibacterial therapy

Antibacterial therapy

6 mo to 2 y

Antibacterial therapy

Antibacterial therapy if severe illness; observation option if nonsevere illness

2 y

Antibacterial therapy if severe illness; watchful waiting if non-severe illness

Watchful waiting

However, their recommendations for observation are appropriate only when follow-up can be ensured and antibacterial agents started if symptoms persist or worsen. Non-severe illness is defined as mild ear pain and fever <39°C in the past 24 hours. Severe illness is moderate to severe pain or fever 39°C. A certain diagnosis of acute otitis media meets all 3 criteria: 1) rapid onset, 2) signs of middle ear effusion , and 3) signs and symptoms of middle-ear inflammation.

In a nutshell, there evidenced based guidelines come from the following studies and reviews. A placebo-controlled trial of acute otitis media showed most children did well without antibacterial therapy. Between 7 and 20 children was the range of number needed to treat for 1 child to benefit, and after the first day after diagnosis, 61% of patients had decreased symptoms regardless of antibiotic treatment.

The likelihood of recovery without antibacterial therapy differs depending on the severity of signs and symptoms at initial examination. In another placebo controlled trial, treatment failure was approximately 4% with placebo for non-severe cases versus approximately 14% for severe cases when compared with amoxicillin treated patients. Also, there has been poorer outcomes in younger children due to decreased immune system strength when compared to older children, increased number of penicillin-resistant strains of pneumococci in those younger than 18 months, and thus antibiotic treatment is justifiably warranted. Current evidence does not suggest increased risk of mastoiditis when AOM is managed only with initial symptomatic treatment without antibacterial agents, nor does routine antibacterial treatment for otitis media prevent bacterial meningitis.

So, this patient was sent home with reassurance and instructions to call if symptoms worsen, fevers develop, or patient does not get better in 72 hrs. If this mom was not to be trusted with close observation or transportation was a problem, she would have received a prescription Amoxicillin (80 to 90 mg/kg per day).

Drug resistance and over-prescription is a HUGE problem these days, so next time your attending is pulls out his/her prescription pad, make sure the latest guideline recommendations support the treatment being written.

May 11, 2005
Headache, temporal arteritis vs. Cluster
    An anxious appearing woman in her 40's presents with intermittent, unilateral headache.  The onset of each episode is very rapid, and the duration is very short.  However the episodes occur every 45-60 minutes.  The pain is deep, continuous, and excruciating, although it is NOT the worst headache in her life.  These episodes are not accompanied by any vision changes, dizzyness, or LOC.  The patient felt better if she worked through these episodes, even continued physical exercise through one.  She noted one occasion of trismus (lockjaw in the vernacular) with a headache, but no extra-cephalic symptoms.

    Differential: Subarachnoid hemorrage, migraine, temporal arteritis, cluster headache.

    Ok, without going into too much detail (and given that I know what happened to her), it's not the worst HA of her life and it has been coming and going 15-20 times per day for three days, so subarachnoid hemorrage is pretty low  on the differential.  There are no auras or visual disturbances and the onset, duration, and frequency are wrong for migraine.  We're left with temporal arteritis and/or cluster headaches.
    Temporal arteritis (Giant Cell Arteritis - GCA) presents with gradual onset headaches in the region between the temple and ear.  They are often accompanied by temporal artery tenderness to palpation, constitutional symptoms like fever or weight loss, and jaw claudication.
    Cluster headaches have a rapid onset and creschendo in minutes.  The duration is usually from 30 minutes to an hour, and the frequency is often 1-3 attacks per day for several weeks at a time.  The patients often prefer to remain active through these headaches as opposed to in migraines where they would like to find the nearest cave.
    In this case the patient had findings that were consistent with both diagnoses.  She described tenderness from the temple to just above her ear, and had at least one episode of trismus, an exaggerated form of jaw claudication.  However the onset and duration of her pain was much better described as cluster headaches.  There was one additional consideration.  Cluster HA'a appear more often in men, and occur 1-3 times a day.  There is a subset of cluster HA's that is pretty rare, however it happens up to 20 times a day predominantly in women.  This zebra is called chronic paroxysmal hemicrania, or by it's older name "indomethacin responsive headache".
    We decided to treat for cluster headaches and started the patient on 4L O2 by nasal cannula.  Indomethacin is an NSAID, so we then gave her Toredol, another NSAID, as a trial.  Both of these measures are reported to abort the HA cycle.  They worked, the patient left the office feeling better and was instructed to report back in the morning if the HA's returned.  They didn't, she didn't, and so I'm done here.  There's only a few last things...

to rule out Temporal Arteritis - try a trial of prednisone, if steroids don't fix it it probably isn't GCA.  Also get an ESR.  ESR<30 is associated with a likelihood ratio of GCA of only 0.02 (umm that's damn small).

Cluster headache can be prophylaxed against with verapamil (Ca-channel blocker), prednisone (steroid), lithium, indomethacin (NSAID), or ergotamine (halucinogenic possibly responsible for the Salem witch trials among other weird and wonderful historic anomalies).

May 10, 2005
Mamagement of Women with Cytologi/Histologic Cervical Abnormalities

As part of the family center, gynecologic clinics are held on two afternoons for the purposes of performing colposcopies or loop electrosurgical excision procedures (LEEP). The referral for colposcopy or LEEP is based on a set of published guidelines/algorithms. The patients seen in the clinic range in age from the late teens to women in their 40's. The cervical cytologic abnormalities include low grade intraepithelial lesions (LSIL), high grade intraepithelial lesions (HSIL), and atypical squamous cells of undetermined significance (ASCUS). While ASCUS still appears on many cytologic reports, newer terminology subdivides this into ASC-US (same as before) and ASC-H (atypical squamous cells in which HSIL cannot be excluded). ASC-H have a much greater probability of demonstrating HSIL on biopsy then does ASC-US. This terminology recommendation was made in what is referred to as the 2001 Bethesda System.

Due to advances in technology, testing and understanding of the progression of cervical changes and the causative agent (high risk human papilloma virus), The Ameican Society of Colposcopy and Cervical Pathology (ASCCP) held a meeting in September 2001 in Bethesda, MD to come up with evidence-based consensus guidelines for the management of cervical cytologic abnormalities. The Consensus Guidelines for the Management of Women with Cytologic Abnormalities was published in JAMA 2002. The guidelines are more easily viewed as algorithms that are available in PDF format from the ASCCP.

The guidelines address the following scenarios:

Management of women with ASC-US. Due to the lower potential for cervical intraepithelial neoplasia (CIN), a repeat PAP in 4 to 6 months, HPV DNA testing in 12 months or colposcopy are acceptable treatments. Three normal PAP's are required before returning to routine yearly testing. If the PAP returns abnormal or the HPV DNA testing is positive, colposcopy is recommended. If CIN is detected in colposcopy biopsies, a second set of guidlines and algorithms published by the ASCCP regarding the management of women with histologic abnormalities is employed. These guidlines involve the use of ablation procedures (cryotherapy) or diagnosic excision procedures, such as LEEP.

Management of women with ASC-US in special circumstances. This category involves post menopausal women with evidence of vaginal atrophy. These women can be referred to immediate colposcopy or HPV DNA testing. However, it is also acceptable to start these women on estrogen therapy and repeat a PAP after completion of therapy.

Management of women with ASC-H. As mentioned previously, ASC-H has an increased risk for HSIL as compared to ASC-US. Therefore, unlike with ASC-US, the sole recommended initial treatment is colposcopy.

Management of women with LSIL. Women with LSIL are referred for colposcopy. Biopsies are taken if necessary. If CIN is detected the above mentioned algorithms regarding ablation or excision are employed.

Management of women with LSIL in special circumstances. This category includes adolescents. Since LSIL is relatively common in the adolescent population and the presence of CIN is infrequent, it is acceptable to follow these patients with a repeat PAP in 6 months or HPV DNA testing in 12 months. As with women with LSIL, colposcopy is also an acceptable option.

Management of women with HSIL. Because up to 3% of women with HSIL have invasive cancer colposcopy with endocervical sampling is required. HPV DNA testing in 12 months is considered unacceptable. This scenario, however, can become complicated when biopsy reports come back as LSIL or even normal. This has occurred several times at the center. Since this is not an infrequent occurrence it is addressed within the algorithm. One is required to review the information and make a clinical judgment on whether to uphold the initial diagnosis, requiring subsequent ablation or excision, or whether to down grade the diagnosis and follow up with HPV DNA testing or a PAP. With conflicting data, this is not necessarily a straight forward task. Today a woman was seen that had HSIL on her PAP, but her biopsies came back normal and her HPV DNA testing was negative for HPV. The question is whether to perform a LEEP due to the known risks associated with HSIL.


Lyme disease presentation/prevention/treatment

I have had the opportunity to see various patients presenting with different stages of lyme disease.  Most patients in the early stage, however, do not present with the targetoid rash (erythema chronicum migrans) that is so often referenced in the texts.  Rather, the rash is ovaloid, erythematous, macular with non-discrete borders.  On further eval. (in my short experience) it has tended to have a sandpaper like texture that is not apparent with simple observation. The article linked addresses the different dermatologic presentations of lyme disease. 

There is some controversy as to how to treat lyme disease.  Many clinicians do not opt to treat until the tick has been identified as a deer tick that has fed for at least 24 hours (the minimum feeding time needed for transmission).  Other clinicians treat empirically with doxycycline 100mg bid for 21-28 days or amoxicillin 500mg qid for 21-28 days.  On the other hand, a single 200 mg dose of doxycycline given withing 72 hours after an I. scapularis tick bite has been reported to be effective in preventing the development of Lyme disease.  The problem with this approach is that most patients present with no recollection of a tick bite or with a tick embedded in the skin for an unknown amount of time.  The article talks about these treatments.

Finally, I have seen a surprising amount of post-Lyme disease depression.  Unfortunately, it does not respond to antibiotics because it is not caused by on-going infx.  The article talks about the long-standing neuro-psych issues associated with lyme disease.

Finally, prevention through proper clothing, inspection/treatment of pets, permethrin cream and, as mentioned earlier, prophylactic antibiotic treatment of tick bites are all helpful.  The article suggests some other ways to prevent infx.  Lyme disease is extremely common this time of year and should not be ruled out simply due to no history of tick bite or rash.

May 9, 2005
Treatment of Vertigo

A patient in her 40s came into the office complaining of nausea almost to the point of being "knocked to the ground."  She noticed that this sensation came over her for the first time when she was bending down to shave her legs n the tub.  Upon standing up, she found herself extremely dizzy and needing to steady herself to prevent herself from falling.

In the following days, she has found herself getting extremely dizzy when turning her head quickly while driving and when walking briskly.  However, if she keeps her head steady, she feels fine.  Hearing this history in conjunction with her physical exam, she was diagnosed with benign paroxysmal positional vertigo (BPPV).

BPPV may occur due to the following:

  • head trauma
  • severe cold
  • aging (average age of onset is 54 years, range 11-84)

Clinical manifestations include lightheadedness, dysequilibrium and sometimes nausea, vomiting, pallor and sweating.

To understand how this occurs, it helps to understand the workings of the ear.  However, in short, BPPV most commonly occurs when loose otoconia settle within the posterior semicircular canal.

Typically, this condition will resolve within 4-6 weeks as the calcium carbonate crystals within the inner ear (otoconia) dissolve or fall into the vestibule.

However, for most patients, this can be a very debilitating condition, so treatment may involve symptomatic management until resorption of the crystals or may include complete relief through Semont or Epley maneuver. 

In our outpatient setting, the appropriate management for BPPV is meclizine, an antihistamine, that minimizes the effects of the vertigo until the crystals clear.  However, this drug is quite sedating which may not be appropriate for a patient who works.  Other symptomatic drugs may be found here.

For patient looking for "instant" relief, they may prefer the Semont or Epley procedure.  More recently, modified versions of the original maneuvers have been found to be extremely effective, especially the modified Epley procedure (MEP).  As written in this article in Neurology, 95% of patients who were followed up 1 week after the MEP were found to have resolved BPPV compared to only 58% on the modified Semont maneuver (MSM).

For our patient, her wishes i(n spite of the evidence for the beneficial effects of the modified Epley maneuver) were for pharmacologic symptom relief.  Therefore, our patient was given a 30 day course of meclizine and was advised to follow-up in one month to see if her vertigo had resolved.


Should DRE and FOBT be used as a screening method for colon cancer in asymptomatic adults?

     The other day in the office there was a lively discussion between a doctor and a nurse on whether a DRE and fecal occult blood test should be performed on every adult patient who comes in for an annual physical who is asymptomatic.  The argument was that these were two easy and fast procedures that may save a life in the future by detecting colon cancer early.  While we would all do a DRE on any patient who has blood in their stools or is otherwise symptomatic, is there any need to submit the average adult with no risk factors to this procedure before the recommended guidelines?

      Current guidelines put out by the U.S. Preventative Services Task Force recommend that screening begin at age 50 in the adult with average risk factors.  In fact, they state that "neither digital rectal exam nor the testing of a single stool specimen obtained during DRE is recommended as an adequate screening strategy for colorectal cancer". Screening tests options put out by the American Cancer Society include the following:

1.  Colonoscopy performed every 10 years, or

2.  Flexible sigmoidoscopy or double-contrast barium enema every 5 years, or

3.  Fecal occult blood test, FOBT (the take home multiple sample method) or fecal

     immunochemical test (FIT)  every year combined with the sigmoidoscopy every 5 years, or

4.  FOBT or FIT test every year.  Least preferable option.

   

     The colonoscopy is the most sensitive and specific test for detecting cancer and large polyps but it is also costly and has higher risk of bleeding and perforation.  The problem with the single hemoccult test is that it misses cancer 95% of the time according to a recent study and therefore cannot be used to reassure a patient.

To be done correctly, stool needs to be collected on 3 consecutive days with the multiple sample method.  Even so, the false positive rate for the FOBT is 80%.  In A systematic review of the effects of screening for colorectal cancer using the faecal occult blood test, Hemoccult; the false positive rate was 80% and this study was performed on asymptomatic adults over 40.  The meta-analysis of 4 randomized control studies showed that if 10, 000 people were offered FOBT screenings then 8.5 deaths from colorectal cancer would be prevented over the next 10 years but between 20 to 800 colonoscopies or sigmoidoscopies per life prolonged would be performed.

This means if we were to apply the DRE and single FOBT to all adult patients on their annual physicals we would be subjecting an even greater number of people to unnecessary colonoscopies and the potential harm associated with them. 

     The DRE and FOBT should be reserved for symptomatic patients and screening for colorectal cancer should begin at 50 unless otherwise indicated.      


Lower Back Pain

   Last week, an obese 50- year old woman presented with complaints of chronic lower back pain for the past 1 year, which would not improve with over the counter Tylenol.  She rated the pain as dull and constant, rating an 8/ 10 for the past year; however, she never seeked treatment before.  She denied any recent injuries, but admits to being under increased stress recently due to her demanding job at the post office.  Her past medical history was also significant for depression 3 years ago, but denies despression currently.  She refuses diet modification and exercise, and states that her pain will only will improve with oxycodone. 

   After a negative physical exam and negative imaging, she was reassured, and encouraged to seek counseling for stress reduction.  She was also given a referral to a pain management specialist, per her adament request.  And that ended her 15 minute office appointment.

   Later that same week, 2 more patients came into the office with similar complaints of lower back pain, and my preceptor expressed the challenges in treating patients with chronic pain.  The differential diagnosis is vast, with the most common etiologies including lumbar disk disease, spinal stenosis, trauma, spondylolisthesis, osteoarthritis, vertebral metastases, infection, immune disorders, osteoporosis, visceral diseases, etc.  Management is complex and not amenable to a simple algorithmic approach.  Treatment is based on upon the identification of the underlying cause; and when no specific cause is found, conservative management is necessary.  For an excellent review article on this common topic, please refer to this article from the NEJM.

May 8, 2005
Omega-3 Fatty Acid Supplements

A 56 year old patient with diabetes mellitus type 2 (DM 2), hypertension (HTN) and hyperlipidemia came to the office for his annual physical exam.  He has been very compliant with his medications (metformin, lisinopril, hydrochlorothiazide, Lipitor) and his efforts are evident in his well-controlled blood glucose levels, blood pressure and cholesterol and triglyceride levels.  The patient has also been following a healthy, low fat diet and walks 30 minutes a day, five to seven times a week.  Although he has made every effort to reduce his risks of coronary vascular disease, he still wonders if there is anything he can do to reduce his risk of having a heart attack.  He has read that adding fish to his diet would help because they contain omega-3 fatty acids.  However, he does not like fish and also worries about mercury levels in the fish.  He asks for advice regarding omega-3 fatty acid supplements.

In short, omega-3 fatty acids are believed to reduce cardiovascular disease by slowing down the growth of atherosclerotic plaques by reducing inflammation, platelet-derived growth factor and adhesion molecule expression.  They are also antithrombogenic, lower blood pressure, decrease the heart's susceptibility to arrhythmias and reduce triglyceride levels.  Studies have shown that 1 to 3 grams of omega-3 fatty acids per day are effective in reducing cardiovascular disease for those who carry risk factors such as DM or have documented coronary heart disease.  This amount can be attained by eating fatty fish, such as salmon, albacore tuna, mackerel or lake trout, daily.  Mercury levels in some fish are concerning.  However, many selections of fatty fish have very low mercury levels and are not overly concerning, except for those who may be or become pregnant.  Patients who are unable to tolerate fish, cannot afford to buy fish, or do not have access to fish, will benefit from omega-3 supplements, such as fish oil capsules.  Since these capsules are fish-derived and thus may contain some mercury, patients should be informed to buy supplements that have been purified to remove as much mercury as possible.

Heart disease continues to be the number one killer of Americans who have comparatively less fish in their diet than those in other countries.  Many of our patients will benefit from adding a omega-3 fatty acid supplement to their diet.

 


Smoking Cessation

A female patient in her 50's came in for a "med refill" visit, but turned out to have multiple conditions/diseases that she wanted to discuss in her "20 min" visit.  In addition to discussing her HTN, DM Type 2, COPD (and various other problems) she received a flyer in the mail from medicaid saying they would pay for smoking cessation therapy for her.  She is a pack a day smoker with a 30+ pack year history.  She wanted us to recommend a therapy for her, but when I suggested the nicotine patch, she said she had already tried it and it didn't work.  Then I went through the other therapies that I knew of, the nicotine gum or nicotine inhaler. Turns out she has tried those therapies as well and said none of it works.  She wanted something else.

I read her flyer from medicaid and it also mentioned covering Zyban or the nicotine nasal spray.  I mentioned Zyban to her and told her it was the same drug as Wellbutrin.  She has taken Wellbutrin in the past and told me it had horrible side effects for her and she didn't want to try it again.  THe only thing left was the nicotine nasal spray.   I told her I had never heard of it before and didn't know how effective it was.  She was willing to try it anyways she said and all we needed to do was write her a prescription.

Since I knew the other therapies have been shown to be effective, I thought I would look up info on the nasal spray to see if it is effective as well.  Unlike the patch, it seems to me that it would give people the quick nicotine "fix" that they crave when they first quit smoking.  The American Family Physician journal had an article that is 10 years old, but is a nice brief overview of the nasal spray.

THe article states that the nasal spray with group therapy, is more effective than a placebo with group therapy in helping people to quit.  It discusses a study that showed the percentage of subjects who were totally abstinent after the first two weeks of treatment and up to one year following the start of treatment was 27% in the active group, versus 15% in the placebo group.

There is a great patient handout on the AAFP website that discusses the pros/cons of each type of nicotine replacement therapy to help the patient choose what will owkr best for them.  There is even a link at the top of that site to take you to an article that reviews the evidence for nicotine replacement therapy for helping smokers quit (for all you EBM junkies!).  And yes, according to this article, "the review of 94 randomized control trials of NRT offers compelling evidence for the efficacy of NRT in the treatment of smokers with moderate to severe nicotine dependence."  Just help the pt choose a method that you both think will work best for them with the fewest barriers to quitting.


Constipation

In the span of one week at my FP clinic three different people presented with a chief complaint of constipation.  These three people were each quite different: a young adolescent female, a middle aged female, and an elderly man.  The following link from last months Emergency Medicine magazine online is a great resource to learn all you need to know about constipation including the workup a physician would do.                       

There are many conditions associated with constipation  namely by class: structural, systemic, medications, muscle, neurologic, and functional.  The initial basic in-office exam would generally include a review of medications, change in diet, what they have tried before coming to the doctors followed by a physical exam for any perineal causes.  In depth studies are numerous and include: colonic transit study, anorectal manometry, colonoscopy, contrasted radiologic studies just to name a few.

Initial therapies include increasing fluids, increasing physical activity, increasing fiber which according to my find is adults 50 years or less 38 grams for men and 25 grams for women; adults greater than 50 30 grams for men and 21 grams for women.  This difference in numbers is attributed to older adults eating less food.  It is generally understood that achieving these fiber goals is difficult and underestimated by many.  Insight by the physician in increasing fiber should be done to aid the patient.  Laxatives, discussed at length in the above link, are not a first line treatment modality.  Patients are told to follow the above instructions and on follow up a reassesment is done to see what progress has been made.  Changes are made accordingly.


Myotonic dystrophy

Although the overall prevalence of myotonic dystrophy is 1/20,000 worldwide, I saw two patients with this disorder this week, so it may be more relevant than you think.

Myotonic dystrophy is an autosomal dominant disorder that commonly presents with muscle weakness, usually of the distal leg, hands neck and face, myotonia and cataracts. DM-I (Type I) is associated with a CTG trinucleotide repeat in the DMPK gene and severity of the disease generally correlates with the number of repeats.

In terms of treatment, there is no specific treatment for the progressive muscle weakness. I learned in the office while managing these patients, that hypothyroidism and some meds for hyperlipidemia can exacerbate the muscle weakness and if this is remedied, the muscle strength can return. One of the main concerns with management of these patients is cardiac involvement, specifically conduction deficits. It is recommended that a baseline echo and yearly EKGs be done with these patients.

I found a website that talks about myotonic dystrophy, and gets into a lot of detail about the genetics and genetic counseling issues involved with this disorder. These are extremely important issues for a family doc to be aware of, as he/she is often asked these questions by the patient.

I learned a lot about this disease this week, so I hope this will be helpful to everyone.


Knee pain and Baker's cysts

I don't know about you guys, but I saw a lot patients with knee pain this past week.  Many were middle aged men with aches and pains that my preceptor mostly attributed to muscle strain and possible some mild osteoarthritis. One younger patient who worked in construction was having trouble walking after his knee "gave out" when carrying some cement upstairs.   He reported he got some relief with Advil and he also was given a diagnosis of muscle strain, given some samples of Celebrex and sent on his way.

One case of knee pain that I saw that triggered a faint recollection in the back of my head of some vague anatomy lecture from 1st year, when the doc I'm working with mentioned Baker's cysts.  The patient was a middle aged male who was with complaints of knee pain and trouble walking. The patient denied any recent trauma. No fevers, no history of arthritis or any other problems with the joint. On physical exam there was no redness, but the patient reported it was much more comfortable to extend his leg than sit with it flexed at the knee.  There was a fluid filled area in the popliteal fossa that was extremely painful to touch.  A posible diagnosis of a Baker's cyst was given.

Baker's cyst is an accumulation of synovial fluid that forms behind the knee after a herniation of the knee joint capsule occurs, out through the back of the knee (as often occurs in adults) or accumulation of fluid in the joint space 9as often occurs in children).  It is often seen in children but can be seen in adults as well. 

Foucher's sign is a term that came up in my research for this blog. It is a measurment of the change in pressure in the Baker's cyst with extension and flexion of the knee.  With extension, the gastrocnemius and the semimembranosus muscles approximate each other and the joint capsule compressing the cyst against the deep fascia, therefore causing the cyst to become hard. Opposite effects in flexion allow the cyst to relax. Just one more fun eponym for us to remember!

Because it is a fluid mass, a Baker's cyst will not be seen on Xray, but may be visualized on MRI.  However, since it is a relatively benign condition that usually improves with time, a MRI was not ordered of this patient.  He was told to continue to monitor for worsening symptoms, told to use some Advil for pain and to return if the pain got worse. At that time, he would most likely for refered to an orhopaedic surgeion for possible drainage. 


Back pain

A woman in her late 20's came hobbling into the office complaining of low back pain.  In the room, she stood bent at the waist with her trunk supported by the exam table.  As she rocked back and forth on her heels, tears dripped off the end of her nose.  "I just want to talk to the doctor," she sobbed.  "You can be there, but I only want to talk with the doctor."

She had been in a motor vehicle accident 2 months ago and had visited the doctor on an almost weekly basis since then.  She worked as a nurse's aide in an adult facility.  In physical therapy the day before, the pain was worsened, which triggered this particular visit.

The doctor pressed on the patient's lower back during the physical exam.  The patient cried and groaned with every touch from the lumbosacral joint to the coccyx.  The pain was 12/10 bilaterally, with shooting pains down to the tips of her toes.  The doctor was so mean for pushing, esp. knowing that it would hurt the patient.

I was rather uncomfortable with this patient's presentation, so I looked up information on the acute management of back pain http://www.emia.com.au/MedicalProviders/EvidenceBasedMedicine/NHMRC_Bogduk_ALBP_Guidelines.pdf

There was an interesting section in Chapter 10 (starting on page 72) of this article which dealt with yellow flags or psychosocial factors that are associated with a poor prognosis.  The doctor didn't really address any of these items, but instead gave a script for more Lortab and wrote a note excusing the patient from work for 3 days. 

 


Sulfa Allergy

Recently a patient with a known sulfa allergy (to sulfamethoxazole in bactrim) who had hypertension and DM type 2 visited our office for routine care. The patient's glucose was under poor control and an additional drug was added. During the discussion of the possible choices the subject of cross-reactivity of sulfonylureas and the sulfonamide antibiotics came up.  For that matter what about sulfites and sulfates and preservatives in food.  Are there any problems with cross-reactivity with them?  Using a quick search I found some information on the subject which was very informative. 

Not all drugs which contain sulfur cross-react with the sulfonamide antibiotics.  In fact not all sulfonamides cross-react.  The sulfonamide antibiotics have the sulfur dioxide and nitrogen groups attached to a benzene ring as all sulfonamides do.  However they also have an arylamine at the N4 position whereas some other sulfonamides do not, accounting for their sporadic cross-reactivities.  Other medications and preservatives that contain sulfur but are not sulfonamides do not cross-react with the sulfonamide antibiotics. 

The product labeling and FDA recommendations for each sulfonamide varies.  For the most part the evidence consists of case reports or manufacturer testing.  However some sulfonamides are contraindicated for use in sulfonamide antibiotic allergy (see table page five in linked pdf document) while others have no recommendations or cautions. 


TB, X-ray, and Pregnancy

A 10-15 weeks pregnant patient presents with a positive PPD (> 15mm induration).  Patient has had negative PPD prior to this.  She recently came back from a trip outside of the US where she thinks she may have been exposed to TB.  Patient denies any symptoms and her physical exam is normal.  Typical TB management would be to do a chest x-ray to rule out active disease and start patient on Isoniazid 300mg daily (with pyridoxine for pregnant patient).  However, given that patient is in her first trimester of pregnancy, there are some controversy regarding the risk and benefit of doing a chest x-ray.  According to the Bureau of Tuberculosis Control of the NYC Department of Health patient can have chest x-ray done after the first trimester with appropriate lead shielding.    The US National Council on Radiation Protection believe that even an exposure of 5- 10cGy (typical x-ray is usually < 1cGy) pose no danger to the fetus/embryo.
The patient in question was referred to a TB clinic for further evaluation.   


PANDAS

A young boy presented to the office 2 weeks after initiation of antibiotic (amoxicillin) treatment for streptococcal infection.  He presents with facial/motor tics including pronounced blinking and puckering his lips repeatedly, and choreiform movements of his arms.  He has no past medical history of tics, Tourrette's, or other neuropsychicatric disorders. Family history is also negative for neuropsych problems. 

Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcus infection (PANDAS) is a syndrome in which pre-adolescent children have abrupt onset of tics and/or Obsessive-Compulsive Disorder (OCD) symptoms related to streptococcal infections.  There are five criteria for diagnosis: 1) obsessive-compulsive disorders and/or tics, 2) episodic course with abrupt exacerbations, 3) abnormal results of neurologic examination (choreiform movements), 4) temporal relation between GAS infection and onset of symptoms and 5) pre-adolescent age.  This article examines possible links between bacterial pathogens, autoimmune reactions, and neuropsychiatric symptoms. 

This is a controversial topic, however.  This article is one of the first studies performed to determine the risk of developing symptoms characteristic of PANDAS after GAS infection.  Interstingly, it concludes that children with GAS infection were not at increased risk for developing PANDAS symptoms.   

It will be interesting to see what future research will reveal about PANDAS.  The current view is that GAS infection in a susceptible host incites the production of antibodies to GAS that crossreact with neurons of the basal ganglia to produce tics and OCD symptoms. 

Current recommendations for treatment include penicillin treatment of each exacerbation with positive throat culture and more aggressive therapies (intravenous immunoglobulin or plasmapheresis) when symptoms are severe.    


tamoxifen
An significant concern among breast cancer survivors on long-term adjuvent chemotherapy is quality of life.  Tamoxifen is a commonly used adjuvent and has some significant side effects.  One complaint among postmenopausal users of Tamoxifen is weight gain.  I did a search on the side effects of Tamoxifen since weight gain in itself is an important risk factor for breast cancer.  Most of the studies that I located reported no significant difference in weight gain between Tamoxifen and placebo. However, the frequency with which this question has been adressed in the literature alone suggests that there is still some concern that Tamoxifen may be associated with weight gain. There were a few studies that linked Tamoxifen with weight gain among users. Due to the discrepencies among the literature I consulted a multi-study, evidence based review of the side effects of Tamoxifen.  This particular study concluded that Tamoxifen is not associated with weight gain https://nsas1.amc.edu/get/uri/http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=11773306.


Familial Breast Cancer Presenting as a Goiter
A middle-aged woman presented with a "lump" in the midline of her neck.  This had been present and growing for the last six months.  She has not come to the physician because of personal tragedy.  In the last year, her sister (55), mother (76) and daughter (33) have all died of breast cancer.  She occasionally does self-breast exams (where she has not found any changes or lumps), but has not had a mammogram in over 3 years. 

On exam a middle-aged woman in NAD who looks well with a 2 x 2 cm symmetrical nodular thyroid at the midline.

Clearly, breast cancer runs in this family but why is she presenting with an enlarged thyroid?  And is this related to her family history of breast cancer? 

The answer to the previous questions are:  1: she probably has a goiter (either hyper or hypothyroid) and B: maybe.

Rarely (0.5-2%) breast cancer may metastasize to the thyroid (article) or pieces of a breast carcinoma may embolize and present as acute thyroiditis (article). 

The diagnosis of goiter upset the patient and she had to be consoled and counseled that nothing was final until some tests were run and a thorough exam (including a breast exam) was performed and unremarkable except for the goiter.  She was sent to the lab for a THS, FT4, and a screening/diagnostic mammogram.   

Just one more thing to think about when finding a goiter on a patient.


Inflammatory changes on PAP smear

I saw a female patient with a history of Pap smears (three) that were negative for squamous cell changes but showed chronic inflammatory changes.  The physician had scheduled her for more frequent exams and sent a HPV test, which was positive, but had not decided whether her exam warranted colposcopy.  The patient was told at another clinic that the inflammation was due to having intercourse before her internal exams, which neither the nurse nor I had heard of before. 

I investigated this topic to determine if the patient had been given appropriate information and also to determine the appropriate follow-up for this patient.

I found a JAMA article (JAMA. 2002;287:2114-2119) that discussed the 2001 Bethesda system for grading Pap smear results, and several other sources (Cervix Low Female Genital Tract. 1989 Jul-Sep;7(3):207-12; Acta Cytol. 2001 Jan-Feb;45(1):5-8) which suggested that the inflammatory changes were most likely due to infection or birth control method.  None of my sources suggested that intercourse would change the outcome of the Pap smear.  They did suggest that given this woman's history of repeated inflammatory changes and HPV status that she should be scheduled for colposcopy (Int J Gynecol Cancer. 2003 Jul-Aug;13(4):518-21, J Fam Pract. 1995 Jan;40(1):57-62). 

May 7, 2005
Neurofibromatosis Type 1

I recently saw a patient with Neurofibromatosis Type 1 (aka von Recklinghausen disease) complaining that some of the neurofibromas were rubbing on his/her clothing/jewelry/accessories.  The patient asked if the neurofibromas could be removed in the office.  Before answering that question, I had to remember (aka look up NF1).
            NF1 is an autosomal dominant disorder affecting around 1 in 4000 individuals.  The NIH defined that the diagnosis of NF1 can be made when 2 or more of the following criteria are met:  more than 6 café-au-lait spots measuring at least 15 mm in adults and 5 mm in children, at least 2 neurofibromas of any type or at least 1 plexiform neurofibroma, freckling in the axillary or inguinal regions, optic glioma, two or more Lisch nodules, a distinctive bony lesion, or a first degree relative with NF1. 
            The neurofibromas on this patient were extensive from head to toe.  The size of the neurofibromas varied from a few millimeters to many centimeters.  Check out these images on Google of neurofibromas.  Interestingly, The Elephant Man was incorrectly diagnosed with neurofibromatosis. 
            Surgery is not curative for NF1, but can be performed to relieve symptoms of the cutaneous and subcutaneous tumors.  The use of intraoperative electromyography monitoring can reduce the risk nerve function loss due to surgery.  Additionally, radiation can be used to shrink the neurofibromas when there is increased risk of damaging nerve function.  If the AMC firewall worked properly, I may have been able to read this article, which appears appropriate for this clinical question.  After reviewing the various sites discussing surgical treatment for NF1, it looks appropriate to treat the patient with surgery while explaining that the neurofibromas can redevelop after being excised. 
 

These comments are sponsored by the Albany Medical Students Website.


Sacral Agenesis and Back Pain

A man in his 40's came in with complaints of lower back pain for a week and a half.  The pain was constant and radiated down both of his legs.  He did not have any associated weakness or urine or stool incontinence.  His lower back was also tender to palpation.  The patient had back pain before about 10 years ago, but it has never been this bad.  He took Ibuprofen and Aleve for the pain with no relief.  He attributes his pain to sacral agenesis. 

After hearing this, I wondered what the causes of sacral agenesis were and what sequelae it had. 

Sacral agenesis is a condition when part of the sacral segments are absent.  The absence of 3 or more segments usually results in nerve abnormalities.

Sacral agenesis occurs in 1:25,000 live births.  Most cases of sacral agenesis are sporadic.  However, there is an increase association with maternal diabetes during pregnancy.  Other causes include vascular anomalies with alteration of blood flow, infectious agents, teratogens (a case report suggested an association with the use of minoxidil solution for the prevention of hair loss during pregnancy), and a hereditary form (aut dom) has also been reported, which can occur with a presacral mass and with ano-rectal malformations (Currarino triad).

Conditions associated with sacral agenesis include hip dislocation, foot deformities, spina bifida, narrowing of spinal canal rostral to the last vertebral body, tethered cord with lipoma, teratoma, cauda equina cyst, fusion of caudal vertebral bodies, neurogenic bladder, anal atresia,  and malformation of genitalia.

We decided to treat the patient with Ibuprofen and Lortab (for breakthrough pain).  We also suggested putting orthotics in his shoes, since his work required him to stand on his feet all day.  For further evaluation of his back pain, we sent him for an x-ray.

May 6, 2005
Blood in semen

Yesterday a patient in his 30's presented with a history of 3 episodes of blood in his semen following intercourse with his girlfriend.  On the second episode he noticed that there was a "clot-type" piece of tissue in the tip of the condom.  He denies pain with ejaculation, new lumps or bumps, warmth, or tenderness in his genital area.  The patient denied changes in urinary habits, pain or burning upon urination, or any abdominal pain.  Patient is consistent with condom use and denies any STDs or known exposure.  He denies having urethral discharge.

The patient is concerned about the possibility of cancer.

On physical exam, the patient was afebrile and BP was normal.  There were no lumps or swellings noted on or around testes.  There was no enlargement of the inguinal lymph nodes.  No lesions were seen.  There was no discharge noted from urethra.

Hematospermia, or blood in the semen, can be caused by inflammation, infection, blockage, or injury to the genital area.  (http://www.nlm.nih.gov/medlineplus/ency/article/003163.htm) It is important to rule out CA although this is very rare and one would typically see a mass and/or swollem lymph nodes.  Testicular cancer usually presents between ages 15-35 and is the most common solid malignancy affecting males in this age group. It is also important to note any urethral discharge to rule out infection.

A U/A was done on this patient which was negative and he was sent to a urologist to have a further work up done to rule out less likely causes such as cancer.

May 5, 2005
Minocycline as treatment for rheumatoid arthritis?

A patient with long standing history of rheumatoid arthritis came to the office for her follow up visit. She had numerous flare ups with her arthritis in the past, and was  prescribed numerous steroids, anti-inflammatory agents, and combinations of both, however, none seemed to truly help. Today, she appeared at the office for the first time, with absolutely no pain complaints. She attributed this to her 2 week start of Minocycline by her  new rheumatologist. Is this her cure or the placebo effect?

As some background, rheumatoid arthritis is a symmetric, peripheral polyarthritis of unknown etiology.  Many potential causes have been identified, namely genetic susceptibility, cigarette smoking, bacterial infections, viral infections, superantigens, heat shock proteins, and autoantibodies, but none proven to date. The disease usually progresses from the periphery to more proximal joints, and in patients who do not fully respond to treatment, results in significant locomotor disability within 10 to 20 years.

The management of the patient with RA is very individualized based upon response to previous treatment regimens, elimation of risk factors where possible, and universal preventive measures such as rest, exercise, physical, occupational dietary therapy, and general measures to protect bone structure and function. Although treatment regimens vary, most physician turn to disease modifying anti-rheumatic drugs (DMARDs) as soon as possible after disease onset. Those with more severe active disease and/or poor prognostic signs are usually  treated more aggressively than those with milder disease. The common endpoint of treatment is to increase the intensity of treatment until evidence for synovitis diminishes or disappears, or until drug-induced side effects become intolerable.


There are four main classes of drugs are currently used, and combination drug therapy from the different classes are frequently employed in treatment, as in the patient mentioned. Topical and oral analgesics ranging from capsaicin to oxycodone, are used to alleviate pain and help patients carry on with a functional life. NSAIDs or selective COX-2 inhibitors, such as celebrex, in patients at high risk for GI bleeds have both analgesic and antiinflammatory properties but do not alter disease outcomes. Glucocorticoids, namely prednisolone or prednisone are most commonly used to suppress inflammation, thereby relieving joint paint and tenderness, may be administered orally, intravenously, or by intraarticular injection. And lastly, a miscellaneous group of drugs termed slow-acting antirheumatic drugs (SAARDs) or disease-modifying antirheumatic drugs (DMARDs) have the potential to reduce or prevent joint damage, preserve joint integrity and function, reduce health costs, and maintain economic productivity. Such agents include, hydroxychloroquine, sulfasalazine, methrotrexate, leflunomide, and less often prescribed, gold salts, D-penicillamine, azathioprine, and cyclosporine.

As mentioned above, none on these drugs seemed to work for my patient.  The Minocycline prescribed for her has 2 potential mechanisms of action that may work in treating rheumatoid arthritis: 1) Inhibit/interferes with the activity of several inflammatory mediators such as metalloproteinases prostaglandins, leukotrienes, nitrous oxide synthase, and oxygen radicals that are involved in joint destruction by rheumatoid synovium, and 2)Antibacterial effect against the postulated Mycoplasma etiology of rheumatoid arthritis. Because of the lack of a gold bullet to cure RA, many physicians are now turning to alternative drugs such as Minocycline after more studies have shown efficacy and safety compared to placebo in patients with mild to moderate disease.

It's worked so far for this patient!



http://www.postgradmed.com/issues/1999/04_99/alarcon.htm