Some issues do not need to be studied. For example, would we expect the National
Institutes of Health to fund a study to determine if drivers wearing blindfolds
have better outcomes? In the past few
weeks, the National Football League (NFL) has conceded that head trauma is
linked to chronic traumatic encephalopathy (CTE), a fancy term that means brain
damage. Of course, there have been multiple studies that have examined this question.
And, in a nod to the tobacco companies, the NFL for too long failed to
admit what any school child could have deduced.
Smashing your head several hundreds of times against the ground or
another helmeted gladiator does not promote good brain health.
Sometimes industries will cite their own ‘studies’ that
astonishingly contradict what our intuition and common sense tell us should be true. Would we accept the results, for
example, of a movie industry ‘study’
that extolled the health benefits of popcorn?
Sometimes, in medicine, we need a study to
derail a standard treatment that is based on habit, rather than on medical
evidence. For decades, appendicitis has
been treated with appendectomy, surgical removal of this finger-like structure
at the uppermost portion of the large bowel.
Diverticulitis, a presumed infection of the colon, has been treated with
antibiotics long before I became a doctor 30 years ago. In the past few months, I have read expert opinions that challenge the embedded dogma of the treatment of these two diseases.
There is evidence and belief that appendicitis can be successfully
treated with antibiotics, rather than surgery.
And, some authorities have suggested that diverticulitis may resolve
on its own without antibiotic treatment.
Appendix at bottom right
These were fascinating and refreshing new observations on
old diseases. So much of what we do in
medicine is based on scant data and evidence.
Despite these lapses, these practices become the standard of care,
leading patients and physicians to believe that there is firm underlying
scientific support for them. When my
kids were small, most case of otitis, an ear infection, were treated with
antibiotics. Why? Because that was how it was done. Over time, this practice has changed.
Medical practice is an ocean liner whose direction cannot be
easily or quickly changed. Of course, we
would not want a truly effective treatment to be abandoned on the basis of one
study whose results may not be sound. Conversely, it is difficult to cull the profession of
established treatments that should have never become established in the first
place.
Finally, just because there is no persuasive evidence that
a treatment works, doesn’t make it quackery.
There’s plenty of stuff in medicine and in life that works well despite
the absence of supportive data. Sure,
medicine is a science. But it’s also an
art.
If a sport requires that an athelete wears body armor and a helmet, then do we need a study to conclude that this head-smashing and bone-breaking activity isn't the best strategy to stay well?
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