Though I enjoyed the fairly understated soap opera on tonight’s episode of House, I found the medicine to be frighteningly bad.

Julia is 35 year-old woman in an open marriage. She is just about to start a fling with her boyfriend when she develops sudden excruciating abdominal pain. She is taken to the ER where all the “usual suspects” are ruled out and she is eventually diagnosed with intestinal blockage (by which I suspect they mean a small bowel obstruction). She is admitted to House’s service not because her condition is particularly interesting, but because Thirteen knows he’ll be intrigued by her open marriage.
The team’s initial diagnosis of herpes colitis (a widespread herpes infection of the intestine) seems to be unduly focused on Julia’s suspected sexual escapades, rather than any real evidence — or the fact that there are many far more likely causes of bowel obstruction. A barium enema is ordered: it shows no evidence of herpes colitis, though Julia’s pain does resolve during the procedure.
Thirteen wants to discharge Julia from the hospital now that the blockage has cleared, but House wants to runs some tests to find out why she developed the intestinal blockage in the first place. He orders an upper GI with a small bowel follow through (have the patient swallow barium, then take a repeated series of x-rays as it slowly makes its way through the intestine). The x-rays are negative, but Julia develops a racing heart rate during the test which is later explained as an “arrhythmia.” Taub attempts carotid sinus massage to slow the heart rate (the massage should activate the parasympathetic system, which slows the heart rate), but it doesn’t work (though clearly something did as her heart rate and rhythm is normal for the rest of the show). With intestinal and cardiac symptoms, the team now suspects a parasitic cause. Neither Julia’s husband nor her boyfriends have been out of the country, so something exotic seems unlikely. A search of Julia’s house turns up evidence her husband was telling the truth about his limited travels, but also a loofah sponge, which the team now suspects she got amebiasis from (an infection by amebas).
Unfortunately, Julia’s symptoms worsen and she loses all movement in her legs. “Tests show no spinal cord injury, no cerebral lesion, and no hemorrhage.” The stool studies also come back and are negative for amebas or any other parasite. House suggests that Julia may have an electrolyte imbalance. Chase suggests that with the husband and boyfriends, she may have an abnormally high libido (i.e. her sex drive is too strong), which can be a sign of adrenocortical carcinoma (cancer of the adrenal glands). An MRI is ordered and it shows no cancer in the adrenals, but it does show a blood clot in the lungs which is confirmed by a VQ scan. The team now believes she has a clotting disorder and starts her on heparin (a blood thinner). The differential diagnosis consists of DIC (disseminated intravascular coagulation), Factor V Leiden, antiphospholipid syndrome, and Vitamin K deficiency. House has Thirteen run tests for all of them — which are, of course, normal. Thirteen now suggests pulmonary artery hypertension, but before any discussion can occur, the team is summoned to Julia’s room where she has once again developed severe abdominal pain. An abdominal ultrasound is quickly obtained and is normal. Chase thinks she may have a problem with her parasympathetic system, but Taub believes she has an intussusception (a condition where the intestine collapses down on itself like closing a telescope). In adults, this is usually caused by cancer. She is rushed to surgery where an intussusception is found. A subsequent biopsy reveals no cancer, just some non-specific inflammation. Chases reports this could be a sign of inflammatory bowel disease, but states that it wouldn’t explain the heart symptoms or the newly-developed kidney failure (oh, House season six, where would we be without our weekly kidney failure?) House disagrees, pointing out that inflammatory bowel disease can be associated with ankylosing spondylitis (an inflammatory disease of the spine), which can have heart and kidney symptoms. He wants Julia started on sulfasalazine and TNF (tumor necrosis factor α) inhibitors (both these medications work on autoimmune diseases, such as ankylosing spondylitis and inflammatory bowel disease).
Julia does not improve on the new regimen and her kidneys are actually getting worse. A kidney biopsy showed IgA nephropathy, for which Chase has kindly written the differential on the whiteboard — a list far too long to reproduce here. The team quickly decides it can’t be sickle cell anemia, celiac disease, hepatitis, cirrhosis, Alport syndrome, anti-GBM antibodies, or Henoch-Schönlein purpura (HSP). They ultimately determine the three most likely causes are hemochromatosis, Weil’s disease, and sarcoidosis and start treatment for all of them (which would include frequent blood draws and possibly deferoxamine, antibiotics, and high dose steroids). Once again, there is no improvement in Julia’s condition. The team starts to list other possible causes of her symptoms including polyarteritis nodosa and mercury poisoning. House looks at the lilacs her husband brought in for her from their garden and remembers that his father didn’t like them because they drew too many bees. The leads House to remember that Henoch-Schönlein purpura can sometimes follow a bee sting — and, sure enough, Julia suffered a sting a few weeks before. The classic rash (the purpura) is still missing, but a quick look in her mouth reveals the lesions at the back of her throat. She is started on IVIG (intravenous immunoglobulin — not a common treatment of HSP) and cyclophosphamide (a common treatment of severe HSP) to treat her condition and a full recovery is expected.
As usual, major complaints are in red, minor complaints are in blue, and nit-picking ones in green:
Once again, a halfway decent physical exam would have cleared this up right away (and it didn’t even have to be a good exam; a half-assed one would have worked.) Looking in the mouth? That’s really basic. This isn’t a third-year medical student mistake; it’s a first-year medical student mistake.
Herpes colitis is exceedingly rare, especially in patients who are not immune deficient. There are dozens, if not hundreds, of more likely causes. Regardless, a barium enema is not the recommended diagnostic test (though, of course, it does conveniently temporarily fix the patient’s problem without actually diagnosing it)
Technically, it is the DCBE (double contrast barium enema) which corrects intussusception, not the regular barium enema Julia seems to have received.
The ER ruled out all the “usual suspects” for abdominal pain and obstruction, but never ran a CT scan? Of course, this would have shown the offending intussusception right away and it would have been case-closed before it even got to House. (It is possible to diagnose bowel obstruction without a CT scan — it has a classic look on an abdominal x-ray for instance — but one of the first orders of business after diagnosis is to look for a cause, and that requires a CT scan).
Though we no longer follow the maxim “never let the sun go down on a bowel obstruction” (i.e. operate right away, time is of the essence!), Julia was receiving substandard care. The poor choice of tests I’ve already mentioned (and will probably mention again), but she should have had a nasogastric tube to help relieve her symptoms.
Very sloppy differentials tonight, right from the start. The team was jumping around each time a new symptoms was discovered without following any logic at all.
Why didn’t the abdominal ultrasound catch the intussusception? Or at least show a suspicious mass where it was?
If a barium enema corrected the intussusception the first time, why not try that again before rushing off to open abdominal surgery, which has much higher risks associated with it?
Thirteen wasn’t actually ruling conditions out, she was stating which ones weren’t treatable. That’s not medical care, that’s wishful thinking.
It is possible to have HSP without the rash. Depending on the study and the diagnostic criteria, as many as 5% of patients may not have the pupura.
Your standard STD panel does not generally include herpes testing because the answer is not as black and white as the other STDs. Unless you directly test a herpes lesion (which will give you a definitive yes-or-no answer, the test looks at antibodies — which are good at telling if the patient has ever had herpes, but not as good at identifying current infections. And as was pointed out, it does no good to test if the body hasn’t had time to make enough antibodies to detect.
Some clotting tests can’t be run once the patient is on heparin, though most of the important ones can (and boy those genetic tests came back fast).
The medical mystery started off slow, but picked up steam, I give it a B. The final solution seemed to fit, for the most part at least: B+. The medicine was very haphazard and illogical, but significant oversights and poor care in general. It gets a D-. The soap opera was pretty strong though, and I enjoyed it: A-.
The review of the previous episode of House
A list of all prior House reviews