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Lessons from History of Medical Delusions

A brief reference on the web site The Quackometer recently drew my attention to a very short book (really more of a pamphlet, in the historical sense) by Dr. Worthington Hooker, Lessons from the History of Medical Delusions, which I thought might be of interest to readers of this blog. Though published in 1850, the book contains many eloquent observations that are just as relevant to understanding how pseudoscience and quackery persist and even flourish in what we otherwise assume to be an age of scientific medicine. The book is available online as a Google eBook, and relatively cheap printed facsimiles are available as well.

Dr. Hooker was a physician, a professor at Yale, and an outspoken critic of homeopathy in it’s early days. His critique of homeopathy still resonates today, and has long drawn the ire of Hahneman loyalists, such as this one who makes reference to Dr. Hooker’s, “periodical fulminations for the destruction of Homoeopathy that have appeared like locusts or cholera at certain dates.” Though Dr. Hooker wrote an entire book discussing homeopathy, Homeopathy: An Examination of its Doctrines and Evidences, he does spare a few words here for this less-than-venerated practice:

The error I have been illustrating is carried to an extreme by the Homeopathist. He attributes palpable results to doses of medicine which are so small that they cannot produce any perceptible effect except by miracle.

(more…)

Posted in: Book & movie reviews, History, Science and Medicine

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What is Science?

Consider these statements:

…there is an evidence base for biofield therapies. (citing the Cochrane Review of Touch Therapies)

The larger issue is what constitutes “pseudoscience” and what information is worthy of dissemination to the public. Should the data from our well conducted, rigorous, randomized controlled trial [of 'biofield healing'] be dismissed because the mechanisms are unknown or because some scientists do not believe in the specific therapy?…Premature rejection of findings from rigorous randomized controlled trials are as big a threat to science as the continuation of falsehoods based on belief. Thus, as clinicians and scientists, our highest duty to patients should be to investigate promising solutions with high benefit/risk ratios, not to act as gatekeepers of information based on personal opinion.

–Jain et al, quoted here

Touch therapies may have a modest effect in pain relief. More studies on HT and Reiki in relieving pain are needed. More studies including children are also required to evaluate the effect of touch on children.

Touch Therapies are so-called as it is believed that the practitioners have touched the clients’ energy field.

It is believed this effect occurs by exerting energy to restore, energize, and balance the energy field disturbances using hands-on or hands-off techniques (Eden 1993). The underlying concept is that sickness and disease arise from imbalances in the vital energy field. However, the existence of the energy field of the human body has not been proven scientifically and thus the effect of such therapies, which are believed to exert an effect on one’s energy field, is controversial and lies in doubt.

—Cochrane Review of Touch Therapies, quoted here

 …

Science is advanced by an open mind that seeks knowledge, while acknowledging its current limits. Science does not make assertions about what cannot be true, simply because evidence that it is true has not yet been generated. Science does not mistake absence of evidence for evidence of absence. Science itself is fluid.

—David Katz

When people became interested in alternative medicines, they asked me to help out at Harvard Medical School. I realized that in order to survive there, one had to become a scientist. So I became a scientist.

—Ted Kaptchuk, quoted here.

 …It seems that the decision concerning acceptance of evidence (either in medicine or religion) ultimately reflects the beliefs of the person that exist before all arguments and observation.

 —Ted Kaptchuk, quoted here.

Together they betray a misunderstanding of science that is common not only to “CAM” apologists, but to many academic medical researchers. Let me explain. (more…)

Posted in: Basic Science, Book & movie reviews, Clinical Trials, Energy Medicine, Faith Healing & Spirituality, Homeopathy, Medical Academia, Science and Medicine

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An Owner’s Manual for the Heart

In writing about science-based medicine, we give a lot of attention to medicine that is not based on good science. We use bad examples to show why science is important and how it is frequently misapplied, misinterpreted, misreported, or even wholly rejected. It’s a pleasure, for a change, to write about a straightforward example of the best of science-based medicine in action. The book Heart 411 is such an example.

The medical literature is a jungle of conflicting and complicated studies. It’s difficult for novices and even for sophisticated non-specialists to navigate. It’s useful to have experts as guides who can apply their knowledge, experience, and judgment to analyze the data and put everything into perspective. I can’t imagine anyone more qualified as guides to “matters of the heart” than the authors of this book. Heart surgeon Marc Gillinov and cardiologist Steven Nissen practice at the Cleveland Clinic, which has been ranked as the number one heart hospital by U.S. News & World Report for the last 15 years and is currently ranked 4th best hospital overall. They have treated more than 10,000 heart patients over 30 years of clinical practice and have also done extensive research and published hundreds of articles in peer reviewed journals. Their book contains everything they would like their patients to know about the prevention, diagnosis, and treatment of  heart disease.  It amounts to an owner’s manual for the heart.  (more…)

Posted in: Book & movie reviews, Science and Medicine

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Dummy Medicine, Dummy Doctors, and a Dummy Degree, Part 2.3: Harvard Medical School and the Curious Case of Ted Kaptchuk, OMD (concluded)

Dummy Medicine, Dummy Doctors, and a Dummy Degree, Part 2.3: Harvard Medical School and the Curious Case of Ted Kaptchuk, OMD (concluded)

A Loose End

In the last post I wondered if Ted Kaptchuk, when he wrote the article titled “Effect of interpretive bias on clinical research,” had understood this implication of Bayes’s Theorem: that interpretations of most scientific investigations are exercises in inverse probability, and thus cannot logically be done without consideration of knowledge external to the investigation in question. I argued that if Kaptchuk had

…understood the point when he wrote his treatise, he was dishonest in not explaining it and in not citing at least one pertinent article, such as Steven Goodman’s (which I’m willing to bet he had read). If he didn’t understand the point he should have withheld his paper.

In researching more of Kaptchuk’s opinions I’ve discovered that he had certainly read Goodman’s article, but that he either didn’t understand it or preferred to obscure its implications in deference to his ongoing project in belittling scientific knowledge. In a letter to the editor of the Annals of Internal Medicine in 2001, Kaptchuk opined that even if “more trials of distant healing with increased methodologic rigor” were positive, it still would not “be persuasive for the medical community”:

The situation resembles the predicament with homeopathy trials, another seemingly implausible intervention, where the evidence of multiple positive randomized, controlled trials will not convince the medical community of its validity. Additional positive trials of distant healing are only likely to further expose the fact that the underpinning of modern medicine is an unstable balance between British empiricism (in the tradition of Hume) and continental rationalism (in the tradition of Kant).

…It seems that the decision concerning acceptance of evidence (either in medicine or religion) ultimately reflects the beliefs of the person that exist before all arguments and observation. [Kaptchuk cites the second of the two Goodman articles that I referred to above, discussed here]

(more…)

Posted in: Acupuncture, Book & movie reviews, Health Fraud, Legal, Medical Academia, Medical Ethics, Politics and Regulation, Science and Medicine, Science and the Media

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Dummy Medicine, Dummy Doctors, and a Dummy Degree, Part 2.2: Harvard Medical School and the Curious Case of Ted Kaptchuk, OMD (cont. again)

“Strong Medicine”: Ted Kaptchuk and the Powerful Placebo

At the beginning of the first edition of The Web that has no Weaver, published in 1983, author Ted Kaptchuk portended his eventual academic interest in the placebo:

A story is told in China about a peasant who had worked as a maintenance man in a newly established Western missionary hospital. When he retired to his remote home village, he took with him some hypodermic needles and lots of antibiotics. He put up a shingle, and whenever someone came to him with a fever, he injected the patient with the wonder drugs. A remarkable percentage of these people got well, despite the fact that this practitioner of Western medicine knew next to nothing about what he was doing. In the West today, much of what passes for Chinese medicine is not very different from the so-called Western medicine practiced by this Chinese peasant. Out of a complex medical system, only the bare essentials of acupuncture technique have reached the West. Patients often get well from such treatment because acupuncture, like Western antibiotics, is strong medicine.

Other than to wonder if Kaptchuk had watched too many cowboy ‘n’ Native American movies as a kid, when I first read that passage I barely blinked. Although the Chinese peasant may have occasionally treated someone infected with a bacterium susceptible to his antibiotic, most people will get well no matter what you do, because most illnesses are self-limited. Most people feel better even sooner if they think that someone with special expertise is taking care of them. If you want to call those phenomena the “placebo effect,” in the colloquial sense of the term, fine. That, I supposed, was what Kaptchuk meant by “strong medicine.”

Turns out I was mistaken. Let’s briefly follow Kaptchuk’s career path after 1983. In the 2000 edition of The Web, he wrote:

(more…)

Posted in: Acupuncture, Basic Science, Book & movie reviews, Chiropractic, Clinical Trials, Homeopathy, Medical Academia, Science and Medicine

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Dummy Medicine, Dummy Doctors, and a Dummy Degree, Part 2.1: Harvard Medical School and the Curious Case of Ted Kaptchuk, OMD (cont.)

Rave Reviews

In 1983, Ted Kaptchuk, the senior author of the recent “albuterol vs. placebo” article, and soon to become the long-time Second-in-Command of the Harvard Medical School “CAM” program, published The Web that Has No Weaver:

The book received rave reviews:

A major advance toward the synthesis of Western and Eastern theory. It will stimulate all practitioners to expand their understanding of the causes and treatment of disease.

–Paul Epstein, MD, Harvard Medical School

A lucid and penetrating exposition of the theory and practice of Chinese medicine. While the book’s rich detail makes it of great use to practicing healers, it is in its entirety very simply written, enjoyable reading for the layman…it brings a demystifying balance…Instructive, profound, and important!

Professor Martin Schwartz, University of California, Berkeley

…demystifies Oriental medicine in a remarkably rational analysis…

—Science Digest, Nov. 1982

…an encyclopedia of how to tell from the Eastern perspective ‘what is wrong.’

Larry Dossey

Dr. Kaptchuk has become a lyricist for the art of healing…

—Houston Chronicle

Although the book is explicitly detailed, it is readable and does not require previous knowledge of Chinese thought…

—Library Journal

The 2nd edition was published in 2000, to more acclaim:

…opens the great door of understanding to the profoundness of Chinese medicine.

—People’s Daily, Beijing, China

…weaves a picture…that is eminently understandable from a Westerner’s point of view…adds a valuable analysis of the current scientific understanding of how the therapies work and their effectiveness.

Brian Berman

Ted Kaptchuk’s book was inspirational in the development of my acupuncture practice and gave me a deep understanding of traditional Chinese medicine…

Dr. George T. Lewith

…a gift for all who share an interest in deep understanding of healing. This new edition is essential reading…

Michael Lerner, President, Commonweal

Even Edzard Ernst, still in his foggy period, called the 2nd edition “a brilliant synthesis of traditional and scientific knowledge…compulsory reading…”

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Posted in: Acupuncture, Book & movie reviews, Health Fraud, Medical Academia, Science and Medicine

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What to Expect When You’re Expecting

A correspondent asked me to review the book What to Expect When You’re Expecting by Heidi Murkoff and Sharon Mazel. She wrote “I’m very worried about this book.”

She had just seen an NPR article about the book and was alarmed because it provided an excerpt from the book recommending that patients with morning sickness “Try Sea-Bands” and “Go CAM Crazy.” She knew from reading SBM and other science blogs that “going CAM crazy” is not a good idea. She was savvy enough to search Google Books with the title and “CAM” and found more alarming advice(more…)

Posted in: Book & movie reviews, Obstetrics & gynecology

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Angell’s Review of Psychiatry

Marcia Angell has written a two-part article for The New York Review of Books: “The Epidemic of Mental Illness: Why?” and “The Illusions of Psychiatry.” It is a favorable review of 3 recent books:

and an unfavorable review of the most recent version of the Diagnostic and Statistical Manual of Mental Disorders, DSM-IV-TR. It paints a disturbing picture of psychiatry. It raises a number of serious concerns but it borders on psychiatry-bashing, a sport that I deplored in a previous post. (more…)

Posted in: Book & movie reviews, Neuroscience/Mental Health

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Another Anti-Vaccine Book

I was asked to review the book Make an Informed Vaccine Decision for the Health of Your Child by Mayer Eisenstein with Neil Z. Miller. Fortunately my public library had it so I didn’t have to buy a copy. Reading it was a painful déjà vu experience. I can honestly say it met all my expectations: I expected that its concept of “informed decision” would equate to deciding not to vaccinate, and that it would rely on the same tired old fallacious arguments that have been heard before and rejected by knowledgeable scientists. The only thing that surprised me was a warning/disclaimer statement that admitted

this book tends to find fault with vaccines, therefore readers are advised to balance the data presented here with data presented by “official” sources of vaccine information, including vaccine manufacturers, the FDA, CDC and World Health Organization.

The fact that the book omitted all that balancing data undermines its pretense that it is intended to help readers make a truly informed decision.

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Posted in: Book & movie reviews, Vaccines

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The Believing Brain

A common question of skeptics and science-based thinkers is “How could anyone believe that?” People do believe some really weird things and even some obviously false things. The more basic question is how we form all our beliefs, whether false or true.

Michael Shermer’s book Why People Believe Weird Things has become a classic. Now he has a new book out: The Believing Brain: From Ghosts and Gods to Politics and Conspiracies: How We Construct Beliefs and Reinforce Them as Truths It synthesizes 30 years of research into the question of how and why we believe what we do in all aspects of our lives.

Some of the content is repetitious for those of us who have read Shermer’s previous books and heard him speak, but the value of the new book is that it incorporates new research and it puts everything together in a handy package with a new focus.

Shermer says

I’m a skeptic not because I do not want to believe, but because I want to know. How can we tell the difference between what we would like to be true and what is actually true? The answer is science.

(more…)

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