Philosophical Differences Between Western
and Chinese Medicine
(Part 1--
Western Medicine)
Western medicine is based on modern
biomedical science and is an evidence-based medicine. Its methodology is
fundamentally analytical and reductive. This method is very powerful in
understanding the structure and function of the human body and
disease-causing agents such as bacteria, fungi, protozoa, virus, etc.
Anatomy, histology, cytology, ultra-structure, molecular biology, and
sub-molecular biology have given us a clear and detailed view of the
physical and chemical structure of the body. The recently disclosed
gene-map has even revealed our fundamental genetic make-up. These advances
in health care have improved the quality of human life tremendously and
because of this success, modern western medicine has become the
predominant medical system in the world. However, no system is flawless
and able to solve every problem. In the case of chronic diseases, the
methodology of Western medicine is not always accommodating for three main
reasons.
First, because no two individuals are the
same, ideal medication has to be individualized. Unified therapeutic
strategy (one disease one treatment, such as IFN-based treatment for
Hepatitis C) used in western medicine cannot meet this requirement.
Because of the great variability that exists among individual patients,
properly prescribed treatment is still a mixed bag of science and art.
Recently developed pharmacogenetics is trying to deal with this problem,
but this branch of modern western medicine is still in its infancy and the
present "one size fits all" method will only yield partial
efficacy.
Second, although the analytical approach is
powerful, being linear is also the weakness of modern western medicine.
Because the human body is an open, large, and complex system, it is
impossible to understand it by analyzing its subsystems alone. The sum of
the parts will not add up to the whole because of the complex
interdependencies that exist. The linear analytical approach of modern
western medicine is accustomed to using the reduction method to simplify
complicated clinical situations. One of the examples is the treatment of
chronic hepatitis C. For this complicated liver disease, western
medicine's linear equation is HCV +(infects) Body = Hepatitis C; Body -
(eradication) HCV = Cure. Conventional western hepatitis C treatment
strategy based on this type of linear method is solely focused the
eradication of the virus and fails to address the numerous other changes
that a patient experiences once he or she is infected. In the chronic
stage, there may be many pathological damages present and if a patient cannot tolerate
or respond to the conventional anti-viral
treatments, he or she is left with few options but to wait for newer
anti-viral treatments.
Third, in this simplified model, human
body's role in the disease pathogenesis has disappeared. In reality, viral
infections consist of two sides, the invading virus and the body's
reactions to this invasion. In the conventional western medical model, the
human body's reactions and pathological changes are rarely taken into
account. So, the treatment strategy for chronic diseases such as Hepatitis
C rarely includes measures to help the restoration of the liver and other
body functions. After 20 to 30 years of a HCV infection, the pathogenetic
factors can have much more profound effects on the liver disease
progression than the etiological factor (the virus). Unfortunately,
conventional western medical treatment is still focused solely on the
etiologic factor and does not address the other complications of chronic
liver disease. So far, the clinical outcome of treating chronic viral
hepatitis using a pure analytical methodology has not been satisfactory.
During the recent hepatitis C consensus development conference held in
Washington in June, 2002, experts expressed their belief that only about
30% of hepatitis C patients are eligible for the interferon-based
anti-viral treatments due to the potential side-effects. Of these eligible
patients, the estimated response rate is only around 50%, leaving the
majority of patients without alternatives in the conventional treatment
arena.
These three major deficiencies in western
medicine are the main reasons Hepatitis C patients are turning to
alternatives such as Chinese medicine. (Part 2 will explore Chinese
medicine and its methodology.)
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