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Electrodermal Testing Part I: Fooling Patients with a Computerized Magic Eight Ball

Remember the Magic Eight Ball toy? You could ask it a question and shake it and a random answer would float up into a window: yes, no, maybe, definitely, etc. There is even a website where you can ask an Eight Ball questions online.

I have been meaning to write about bogus electrodiagnostic machines for a long time. These devices supposedly diagnose diseases and/or energy imbalances, indicate which remedies will correct the problem(s), and sometimes even treat the imbalances by transmitting a balancing frequency to the patient. I knew they were bogus, but I had never really realized the full extent of the deception until I viewed a set of training videos recently sent to me by a correspondent. I had never realized how similar electrodermal testing was to the Magic Eight Ball. I was further amazed at how they managed to combine every kind of alternative medicine into one incoherent package and to bamboozle patients with an appalling display of pseudoscientific babble.

This will be a two-part series. In the first, I will describe what the machines and their operators do. In the second (next week), I will address the legal and regulatory issues.

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Posted in: Acupuncture, Energy Medicine, Homeopathy

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Virtual Colonoscopy Can Be Hazardous to Your Health

The US Preventive Services Task Force (USPSTF) recommends that everyone aged 50-75 be screened for colon cancer with any one of three options: colonoscopy every 10 years, flexible sigmoidoscopy every 5 years, or fecal occult blood testing (FOBT) every year. Conventional colonoscopy is considered the “gold standard” since it allows for direct detection and biopsy of early cancers and removal of precancerous polyps. It involves passing a long colonoscope via the rectum through the full length of the colon and is also known as optical or visual colonoscopy. A newer and less invasive alternative, virtual colonoscopy or CT colonography, is being promoted by some as the test of choice. Others disagree. One area of controversy is that CTs frequently find “incidentalomas” that require further investigation. An article in the journal Radiology highlights this problem, describing “the clinical drama that follows screening or diagnostic tests.” (more…)

Posted in: Cancer, Diagnostic tests & procedures

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Kudos to Steven Novella

It has just been announced, in the July/August issue of Skeptical Inquirer magazine, that our own Steven Novella has been awarded the 2010 Robert P. Balles Annual Prize in Critical Thinking. It will be formally presented at the CSIcon conference in New Orleans on October 28, 2011. The Prize is a $1500 award given to the author of the published work or body of work that best exemplifies healthy skepticism, logical analysis, or empirical science. The Committee for Skeptical Inquiry (CSI) selects the publication that, in its judgment, has the greatest potential to create positive reader awareness of currently important scientific concerns. Previous awards starting in 2005 were for individual publications. In Dr. Novella’s case, the award was for his entire body of work. In the letter informing him of his selection, CSI Executive Director Barry Karr said,

…you are being honored for your tremendous body of work including The Skeptic’s Guide to the Universe, Science-Based Medicine, Neurologica, your SKEPTICAL INQUIRER column “The Science of Medicine,” as well as your tireless travel and lecture schedule on behalf of skepticism. You may well be the hardest worker in all of skepticism today. And to me, the truly amazing thing is you do all of this on a volunteer basis.

He is also the president and co-founder of the New England Skeptical Society, a fellow of CSI, a founding fellow of the Institute for Science in Medicine, a medical advisor to Quackwatch, a contributor to other blogs, has produced a course for The Teaching Company on “Medical Myths, Lies, and Half-Truths,” and is Senior Fellow and Director of the James Randi Educational Foundation’s (JREF) new Science-Based Medicine project. And I have undoubtedly omitted several of his other accomplishments.

It is hard to believe he hasn’t cloned himself, since all of these achievements are in addition to his demanding day job as a clinical neurologist, assistant professor, and director of general neurology at Yale University School of Medicine.

Congratulations, Steve! The award couldn’t have gone to a better candidate. I want to add my personal thanks for all you do and say how proud I am to be associated with you. You da man!

 

 

 

Posted in: Announcements

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Acupuncturist’s Unconvincing Attempt at Damage Control

Acupuncture has been in the news recently. A former President of South Korea had to undergo major surgery to remove an acupuncture needle that had somehow lodged in his lung.  A recent study in Pain compiled a list of 95 published reports of serious complications of acupuncture including 5 deaths. Meanwhile, acupuncturists continue to insist that their procedures are “safe.”

Edzard Ernst et al.’s article Acupuncture: Does it alleviate pain and are there serious risks? A review of reviews was published in the journal Pain in April 2011. It had two parts: (1) it was a systematic review of 57 systematic reviews showing that there was “little truly convincing evidence that acupuncture is effective in reducing pain,” and (2) it tabulated published reports of 5 deaths and 90 other serious complications of acupuncture treatments. I wrote an accompanying commentary, “Acupuncture’s claims punctured: Not proven effective for pain, not harmless.”

William Morris chastised me for not declaring a conflict of interest (!?) in my commentary. Now, in Acupuncture Today, he has criticized the Ernst et al. study itself.
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Posted in: Acupuncture

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Autism and Prenatal Vitamins

Science has found no evidence that vaccines cause autism; but the true cause(s) of autism have not yet been determined. So far the available evidence has pointed towards a largely genetic cause with possible interaction with environmental factors. A new study supports that interpretation. It also supports previous evidence that autism is triggered prior to birth, rather than at the time of vaccinations.

Schmidt et al. published a study in Epidemiology on May 23, 2011, entitled “Prenatal Vitamins, One-carbon Metabolism Gene Variants, and Risk for Autism.” It was a population-based case control study of 566 subjects comparing a group of autistic children to a matched control group of children with normal development. They looked at maternal intake of prenatal vitamins in the 3 months before conception and the first month of pregnancy, and they looked for genotypes associated with autism. They found that mothers who didn’t take prenatal vitamins were at greater risk of having an autistic child, and certain genetic markers markedly increased the risk. There was a dose/response relationship: the more prenatal vitamins a woman took, the less likely she would have an autistic child. There was no association with other types of multivitamins, and no association with prenatal vitamin intake during months 2-9 of pregnancy. (more…)

Posted in: Neuroscience/Mental Health, Nutrition

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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.

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Posted in: Book & movie reviews

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How to Build a Bridge

People tend to limit their reading to sources that agree with their beliefs. We find ourselves mostly preaching to the choir; our message usually doesn’t reach those who most need to hear it. I recently received an inquiry from a science-based medical doctor asking how to approach others in building a bridge to clarify so much misinformation.

My first thought was that you can build a bridge but the real challenge is persuading people to cross that bridge. Like leading a horse to water…

How to approach others? That’s a tough question. The best approach varies with the individual and with where he is in his journey. Confrontation seldom works: it just makes people angry. It is counterproductive: it only serves to make them invent more rationalizations to defend their beliefs. Although sometimes anger can be a good thing. I got an e-mail from an acupuncturist who was incensed by an article I wrote saying that acupuncture was not based on good evidence. He set out to prove me wrong by looking up the evidence behind what he had been taught by his teachers about acupuncture’s efficacy for specific conditions, and when he couldn’t find any, he realized that his teachers and his textbooks had misled him with lies. He gave up acupuncture and went back to school to learn a science-based health profession. (more…)

Posted in: Science and the Media

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Pragmatic Studies and Cinderella Medicine

Explanatory studies are done under controlled conditions to determine whether a treatment has any efficacy compared to a placebo. Pragmatic studies are designed to assess how the intervention performs in everyday real world practice. Pragmatic studies measure practical success but don’t determine actual efficacy: that requires a proper randomized controlled trial (RCT) with an appropriate control. Pragmatic studies have their place, but they can sometimes make an ineffective treatment look good: a phenomenon I have christened Cinderella Medicine.

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Posted in: Acupuncture, Clinical Trials

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Cognitive Traps

In my recent review of Peter Palmieri’s book Suffer the Children I said I would later try to cover some of the many other important issues he brings up. One of the themes in the book is the process of critical thinking and the various cognitive traps doctors fall into. I will address some of them here. This is not meant to be systematic or comprehensive, but rather a miscellany of things to think about. Some of these overlap.

Diagnostic fetishes

Everything is attributed to a pet diagnosis. Palmieri gives the example of a colleague of his who thinks everything from septic shock to behavior disorders are due to low levels of HDL, which he treats with high doses of niacin. There is a tendency to widen the criteria so that any collection of symptoms can be seen as evidence of the condition. If the hole is big enough, pegs of any shape will fit through. Some doctors attribute everything to food allergies,  depression, environmental sensitivities,  hormone imbalances, and other favorite diagnoses.  CAM is notorious for claiming to have found the one true cause of all disease (subluxations, an imbalance of qi, etc.).

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Posted in: Science and Medicine

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