Who
Gives a CAM?
By Milt Hammerly, MD
Sir William Osler, who advised
to "be not the first nor the last" in adopting new therapeutic approaches,
would probably be appalled at how many physicians are dragging their feet
with respect to complementary and alternative medicine (CAM). In fact around
the turn of the century Dr. Osler himself recognized that acupuncture was
a useful adjunct for patients with low back pain. The objection physicians
most often raise for not accepting or adopting CAM is that there are no
studies adequately documenting safety and efficacy for these therapies.
As more and more studies document both the safety and efficacy of select
CAM interventions in specific clinical situations the above objection becomes
more of an excuse based on ideology than a reason founded on thoughtful
consideration. With a significant percentage of our patients using CAM
it is apparent that physicians who choose to remain willfully ignorant
of CAM are doing their patients a disservice.
Ideology Centered Research
Historically, there were
two divergent post-Hippocratic schools of medicine. One was called empiricism,
which relied on experience and observable events, the other was called
dogmatism, which assumed ultimate truth could be known. In Dorland's medical
dictionary, the above is explained and an additional entry under empiricism
equates it with quackery. The feat of relegating experience and observable
events to quackery was accomplished with the adoption of the "scientific
method" in medicine. Scientific medicine, also referred to as rational
medicine, is in essence a form of neo-dogmatism. The assumption of this
approach is that absolute knowledge can be tested and proven or disproven
incontrovertibly. The current tool most favored for this is the double-blinded,
placebo controlled study. This tool has several assumptions and limitations.
The primary assumption is that all extraneous variables can be controlled.
If we were studying robots, or genetically controlled strains of mice,
in which we control both nature and nurture, this might be true. However,
since we are dealing with people, each with their unique variations in
physiology and personality, the most favored tool will fail to detect clinically
significant outcomes in certain subsets of the studied population. Another
shortcoming of the most favored tool is that some therapies cannot be doubled-blinded,
thereby excluding these therapies from the "scientific" arena. To give
an example illustrating both of the above points - consider a study of
acupuncture in the treatment of asthma. The two arms of the study involved
patients who were treated with needling of sham acupuncture points (placebo)
or needling of real acupuncture points. The patients did not know whether
they were receiving sham or real acupuncture, however the practitioner
clearly had to know who received what treatment. All patients in the non-sham
group had the exact same acupuncture points stimulated in the exact same
way. This is an insult to anyone who knows the slightest bit about Traditional
Chinese Medicine (TCM). TCM, from which acupuncture is derived, recognizes
at least seven major types of "asthma" with many minor variations. A "one
size fits all" study tool clearly compromises the underlying principles
of the therapy being studied. Therefore it is no surprise that studies
with this type of design fail to show a clinically significant effect.
A much more reasonable study design would take into account both individual
variability and the therapy being studied. Outcome studies, which have
been in the press a lot recently, are more suited for CAM research because
they focus more on results than on theory or ideology.
Patient Centered Research
There has been a rude awakening
of the medical establishment over the last few years. Limited health care
resources and cost containment efforts by third party payers have demanded
that we prove that what we do in Western allopathic medicine (WAM) works.
Unfortunately, 70 to 80% of what we do in WAM has not met this standard
of proof - the same standard of proof being demanded of CAM. The cost of
doing research which proves anything "beyond a shadow of doubt" is very
high. In fact the cost of this type of research is so prohibitively high
that we will never be able to afford proving beyond a shadow of doubt most
of what we do in WAM. If WAM with its generous financial resources can't
afford to prove everything it does it is obviously self-serving to expect
CAM, with more meager funding, to do so. The use of outcome studies levels
the playing field for both WAM and CAM. Outcome studies could just as easily
be called "patient centered research" because what matters most to the
study is what matters most to patients - results.
The Clinical Dance
The same dogmatism that has
prevailed in research until recently has also prevailed in clinical practice.
The assumption has been that physicians, with their specialized biomedical
training, would always lead the clinical dance and the patient would follow.
More and more patients are questioning this assumption and trying to lead
the dance at times. Patients who are "stepped on" because the physician
refuses to follow often choose to find someone else to dance with. According
to a number of studies between thirty and fifty percent of our patients
are opting to use some form of CAM for their health care. If we systematically
put patients down when they use CAM and refuse to learn anything about
CAM they will find someone else to dance with! Am I suggesting that we
endorse every fad or agree with everything our patients do? Hardly. I am
suggesting that we should take an active interest in what is clearly relevant
in our patients' lives. If we get educated about CAM we can engage our
patients in meaningful discussion on the subject, with a chance of being
heard and of helping our patients make good choices. If we choose to remain
dogmatic and uninformed about CAM we will not be heard and will consequently
do our patients a disservice. In fact, it is probably negligent to not
ask our patients about their use of CAM because of the potential interactions
and occasional contraindications with what we do in WAM. If we lead the
dance in this direction, as we should, it is vital that we be well informed
and able to give good advice and honest answers on the subject. We should
try to lead by being well informed. We should be willing and able to follow
when patients take the lead. If we're unable to lead and/or follow we should,
as the saying goes, get out of the way.
Pragmatism & Medical
Evolution
The ever changing knowledge
base and climate in medicine requires us to be pragmatic with respect to
our research methods - the tools and methodology have to be flexible enough
to accommodate what we are attempting to study. Rigid, inflexible tools
and methodology will result in bad data, bad conclusions, and the perpetuation
of dogma. The changing patient - physician relationship also requires us
to be pragmatic. We need to learn some new dance steps if we don't want
to left out. Even reimbursement for medical services requires pragmatism.
If you remain inflexible in this rapidly changing area you will quickly
go out of business.
The physician who refuses
to evolve will become extinct. Pragmatism is the attitude that makes medical
evolution possible. Dogmatism is the attitude that leads to medical extinction.
One of my favorite cartoons depicts two cave men talking to each other
with chisels in their hands and some stones in the background. The caption
reads, "The trouble with being a cave man is that everything has to be
carved in stone." Let us not think that everything has to be carved in
stone!
Patient Centered Medicine
An often quoted saying of
Dr Francis Peabody Weld is, "The secret of caring for the patient is to
care for the patient!" Well, what exactly did Dr. Weld mean when he told
us to care for the patient - and what relevance does it have to CAM? To
care for the patient undeniably involves caring what they care about. Patients
care about results more than ideology. Patients have their own ideas and
preferences. To put patients down for their ideas or preferences or to
not give a hoot about how their ideas and preferences impact their health
is not what Dr.Weld had in mind.
The studies show repeatedly
that a significant number of our patients care about CAM. We had better
start caring about CAM if we care for the patient - otherwise we'll find
ourselves deselected from the caring pool by a significant number of patients.
Caring about CAM requires, at a minimum, that we become well informed and
that we discuss the subject with our patients. For physicians who want
to do more than the bare minimum it makes sense to expand the frontiers
of knowledge in CAM by doing outcomes research to better define the parameters
of safety and efficacy. It also makes sense to offer CAM to our patients
as an option in the select instances where research documents a high probability
of safety and efficacy.
By being less dogmatic and
more pragmatic we will be better able to care for the patient. Pragmatism
and a touch of humility will allow us to move from ideology and physician
centered medicine to what Dr. Weld had in mind - patient centered medicine. |