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Archive for January, 2009

Animal vaccinations

Without question, vaccination has been one of the most important interventions in disease prevention that has ever been developed. In spite of the demonstrable, and ongoing, success of vaccination, a small, but vocal, anti-vaccination movement has developed in human medicine, occasionally buttressed by horrifying instances of adverse reactions, as well as the occasional publications in scientific journals (vis, the Wakefield debacle). Vaccine development continues, and human health continues to benefit, as new vaccines are developed and tested prior to release.

In veterinary medicine, vaccination has also proven to be a boon for animal health. Diseases such as canine parvovirus and canine distemper, feline leukemia, or equine tetanus, have been greatly reduced – in some cases, nearly eliminated – by vaccination. And, as in human medicine, a small, but vocal, anti-vaccination movement has developed, regaling fearful listeners with tales of acute harm, or chronic, low-grade disease (sometimes termed “vaccinosis”).
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Posted in: Vaccines, Veterinary medicine

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The Weekly Waluation of the Weasel Words of Woo #9

Resurrection!

Can y’believe it? The W^5/2™, that cesspool of Afflicted Sophistry and Festering Fallacy—not to say that wellspring of Awesome and Absolutely Annoying (Cloying) Alliteration© and that Mother of all Maddening Mixed Metaphors and Sundry Similitudes®—is back! Yup, like the proverbial phoenix rising from the ashes of near-terminal procrastination, and due to overwhelming popular demand, the W^5/2 is reborn!!! Well, it also might have something to do with yer faithful servant needing some time to put together a real paper or two…naaahh! But what the hay, let’s just dive right in and pretend that nothin’s changed, shall we?

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Posted in: Cancer, Chiropractic, Faith Healing & Spirituality, Health Fraud, Humor, Medical Ethics

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Our own slippery grounds

When we were forming the National Council against Health Fraud I wondered aloud to the president, Bill Jarvis, what we would do if society solved the chiropractic problem. Bill laughed and said there would never be an end to quackery claims.

How right he was. But why? Many express surprise that at this time of remarkable intellectual and scientific advance, so many people choose to believe in irrational medical claims. The answer I am used to is the one that explains the difference between the attraction of subjective versus the dryness of the objective; between reflex and conditioned responses and rational thought, and between immediate emotionally gratifying, low-level mid-brain reactions and slow-reacting, cool, higher level intellectual thought. These comparisons are all valid but in trying to answer the question, we can miss the constancy of human nature biology, the dimension of time flow, the changing nature of evidence, and as yet unemphasized, the changes and evolution of measurement.…

Before Evidence Based Medicine (EBM) was devised, and the randomized clinical trial (RCT) accepted as the so-called gold standard, our evidential decisions turned on balances or ratios of science/nonsense, rationality/irrationality, reality/delusion, and an estimate of plausibility/implausibility. We can see now that the concept of EBM introduced a new set of standards to our equations balances – proof by RCT and their derivatives, systematic reviews (SRs). The demand for proof by RCT and and SR relegated the previous standards, the unbalanced ratio concept, to the level of anecdote and “uncontrolled observation.” We had to start over again with a new standard.
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Posted in: Basic Science, Clinical Trials, Health Fraud, Science and Medicine

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Who Should Ascend To The Office Of Surgeon General?

President-elect Obama’s nomination of CNN medical correspondent, Sanjay Gupta, for the Office of Surgeon General of the United States has ignited a firestorm of debate across the Internet. Some argue that he is not qualified for the position, others say that his charisma would be a boon to public health communications, though the lay majority appear to have mixed feelings.

It is highly irregular for a Surgeon General nominee to be announced before the Secretary of Health and Human Services is confirmed. This faux pas in itself may speak to an irresistible opportunity for self-promotion, or that the Senate confirmation hearing is not the independent review event that we assume it is.

At age 39, Gupta has long aspired to become the Surgeon General, as sources close to him report that he has been saying (since age 33) that “it’s the next logical step in his career development.”

But before we draw conclusions about who’s right for the job, we need to understand what the job entails.

I asked Dr. Richard Carmona, 17th Surgeon General of the United States, to explain the roles and responsibilities of the office. A summary of our conversation follows:
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Posted in: Politics and Regulation, Public Health, Science and the Media

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Paul Offit Takes On Robert Sears

Dr. Robert Sears, son of the perhaps more famous Dr. William Sears (both pediatricians), has continued his father’s work of publishing popular books for parents. He wrote The Vaccine Book: Making the right decision for your child, published in October 2007. In it he advocates his Dr. Bob’s Alternative Vaccine Schedule. Much of his claims made in the book are repeated on his Ask Dr. Sears website.

In the latest issue of Pediatrics, Paul Offit, along with Charlotte Moser, write a detailed analysis of Dr. Bob’s alternative vaccine schedule, systematically reviewing Dr. Sears’ claims. It is essential reading for anyone interested in the popular vaccine controversy. Paul Offit also recently published his own book, Autism’s False Prophets, in which he goes into great detail about the history and science behind the claims by anti-vaccination advocates of the risks of vaccines, most famously the claim that vaccines are linked to autism.

Dr. Sears does not come off as a hard core anti-vaccinationist. I am still trying to figure out his perspective from reading his articles. It seems as if he is trying to be popular by straddling the fence, and offering what he thinks might be a reasonable compromise. For example, he writes on his site:

The bottom line is that more and more parents want options. If we don’t provide them with options they are comfortable with, more parents will opt out of vaccines altogether. We will then see more and more disease fatalities and complications.

Unfortunately, this is like trying to compromise between mutually exclusive positions, like young-earth creationism and evolution. It doesn’t work. Dr. Sears is left giving his readers, who will likely be comprised of many parents trying to decide whether or not to vaccinate their children, with partial information or misinformation. Offit and Moser do a great job of exposing this deception through misinformation.

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Posted in: Vaccines

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2008 Medical Weblog Awards

I am pleased to announce that Science-Based Medicine is a finalist for a 2008 Medical Weblog Award in the New Medical Blog category. You can see all the categories and finalists here: http://www.medgadget.com/archives/2009/01/the_2008_medical_weblog_awards_the_polls_are_open.html

Of note, our blogging friend, Orac, is also a finalist for Respectful Insolence in the health policies/ethics category, along with our own Dr. Val Jones for her excellent blog, Better Health.

We would appreciate you taking a look and voting for the blog of your choice.  And thanks to all of our readers for your kind support over our first year, and the active and informative discussions in the comments section. We look forward to more SBM in 2009.

Posted in: Science and Medicine

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South Dakota’s Abortion Script: The Hijacking of Informed Consent

In a previous post, I suggested that informed consent could sometimes be misused. South Dakota has provided a clear example of such misuse and has set a frightening precedent reminiscent of Big Brother in George Orwell’s 1984.

A law went into effect in July, 2008, requiring that any woman seeking an abortion in South Dakota must be told that she is terminating the life of “a whole, separate, unique, living human being” with whom she has an “existing relationship” and that abortion terminates “her existing constitutional rights with regards to that relationship.”

It requires that doctors give patients information about medical risks, but it doesn’t leave anything to chance: it specifies what the risks are, including depression, suicide, danger to subsequent pregnancies, and death. The current state of development of the fetus must be described, and the woman must be asked if she wants to see a sonogram of the fetus. All of this must be done in writing, and the woman must sign each page of documentation. Physicians who fail to comply can lose their license or be charged with a misdemeanor. (more…)

Posted in: Politics and Regulation, Surgical Procedures

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Reality is unfair

This space has often hosted musings on the nature of scientific knowledge, on how medical science is based in methodological naturalism (MN), rather than supernaturalism.  MN requires that our acquisition of knowledge about the natural world be based on natural phenomena.  The reason for this should be quite obvious:  the natural world is the only one that exists, for all intents and purposes, and explanations must be based on natural processes.  Can you name any supernatural processes?  Can you measure them?  Of course not.

This bothers adherents of alternative medical practices.   Since science doesn’t support their ideas, they would like to carve out exceptions to natural laws.   Remember, we know quite a bit about the universe.  We don’t understand exactly what matter is yet, but we can measure it and experience it without ambiguity.  We know the universe has matter/energy; we understand pretty well the primary forces of electromagentism, gravity, small and weak nuclear; and there are probably a few other things whose effects we can measure even if they aren’t completely understood (dark energy, dark matter).

All of modern medicine works in ways consistent with our understanding of the universe.  Even when we don’t completely understand something, it does not behave contrary to these laws.  A beta blocker has never caused someone to levitate.  No one has been revivified by electricity, a la Dr. Frankenstein (“That’s Frahnkensteen!“).  Human bodies follow natural laws, and natural explanations are the ones that have explanatory power.

Since these natural laws explain what we see in the clinic and lab, what are the altmed gurus to do?

They have three main strategies, each of which is conveniently described by a logical fallacy. (more…)

Posted in: Science and Medicine

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Christine Maggiore and Eliza Jane Scovill: Living and dying with HIV/AIDS denialism

Christine Maggiore

On Science-Based Medicine, we strive to apply the light of science and reason on all manner of unscientific belief systems about medicine. For the most part, but by no means exclusively, we have concentrated on so-called “complementary and alternative medicine” (CAM) because there is an active movement to infiltrate faith-based, rather than science-based, modalities into “conventional” medicine. Indeed, such efforts are well-financed, both by public and private organizations, and are alarmingly successful at insinuating postmodernist and pseudoscientific beliefs into academia to form an unholy new monster that has been termed by some as “quackademic medicine.”

However, one pseudoscientific belief system about medicine that we at SBM have perhaps not dealt with as much as we should is the belief that, contrary to the overwhelming scientific consensus built up over 25 years, the Human Immunodeficiency Virus (HIV) does not cause Acquired Immune Deficiency Syndrome (AIDS). True, working with Tara Smith, our fearless leader Steve Novella has published an excellent primer on the phenomenon, but not on this blog. This belief system, which is commonly called HIV/AIDS denial or HIV/AIDS denialism, is championed by virologist Peter Duesberg, along with a panoply of groups, such as Alive & Well AIDS Alternatives and Rethinking AIDS; blogs, such as Science Guardian, HIV/AIDS Skepticism, and AIDS Is Over; podcasts, such as How Positive Are You?; books, such as What If Everything You Thought You Knew About AIDS Was Wrong? by Christine Maggiore; and movies, such as The Other Side of AIDS (which resembles in many ways the anti-evolution movie Expelled! and the pro-quackery movie The Beautiful Truth). The influence of HIV/AIDS denialism is horrific, too, particularly in Africa, where advocates of such nonsense, such as Matthias Rath, have advocated quackery over antiretroviral therapy and had the ear of South African President Thabo Mbeki, who lost power in late 2007.
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Posted in: Health Fraud, Public Health, Science and Medicine, Science and the Media

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AARP and Alternative Medicine

I know I said the next entry would be about the efficacy of the influenza vaccine. The road to blogging in paved with good intentions. I will eventually write that entry, but the ADD has kicked in and my attention has wandered elsewhere.

I am 51 and one of the benefits of this advanced age is you get to join AARP, the American Association of Retired People. Yes, I know I am not retired, and given the current economic situation I am already practicing for my retirement.

“Do you what paper or plastic?”

“For here or to go?”

“Do you want fries with that?

Piece of cake. Who needs a 401K?

The day I received the AARP application, on my 50th birthday, despite some misgivings (8), I joined.

The purpose of AARP, besides discounts at Denny’s and the right to yell at kids when they are on your lawn, is, according to their mission statement, “AARP is dedicated to enhancing quality of life for all as we age. We lead positive social change and deliver value to members through information, advocacy and service. (1)” AARP is a lobby/special interest group for the elderly. In medicine the elderly are considered a vulnerable/at risk group. The elderly may have have fixed incomes, chronic medical problems, declining cognitive function and social situations that make them particularly susceptible to scams of all kinds. So it was nice to have an organization looking after our interests.

AARP has at least 40 million members. Accompanying the membership is their magazine, somewhat eponymously entitled AARP Magazine. The AARP Magazine has the largest circualtion of any magazine in the US with 24 million copies, each read issue by more than one person (7). It has 3 times the circulation of Readers digest. Only Parade magazine has a wider circulation. These are the publications where people receive casual information about about health care. I would assume that a magazine from my advocacy organization would contain information that I can trust. After all, AARP is looking out for my interests as a senior, and any article they would publish, especially relating to health and finances, I should be confident was reliable.

The January/February had an article “Drug Free Remedies for Chronic Pain” by Loolwa Khazzoom (2).
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Posted in: Energy Medicine, Science and the Media

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