August 10th, 2010 by Harriet Hall, M.D. in Better Health Network, Health Policy, News, Opinion, Quackery Exposed, Research
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Glucosamine is widely used for osteoarthritis pain. It’s not as impossible as homeopathy, but its rationale is improbable. As I explained in a previous post:
Wallace Sampson, one of the other authors of this blog, has pointed out that the amount of glucosamine in the typical supplement dose is on the order of 1/1000th to 1/10,000th of the available glucosamine in the body, most of which is produced by the body itself. He says, “Glucosamine is not an essential nutrient like a vitamin or an essential amino acid, for which small amounts make a large difference. How much difference could that small additional amount make? If glucosamine or chondroitin worked, this would be a medical first and worthy of a Nobel. It probably cannot work.”
Nevertheless, glucosamine (alone or with chondroitin) is widely used, and there are some supporting studies. But they are trumped by a number of well-designed studies that show it works no better than placebo, as well as a study showing that patients who had allegedly responded to glucosamine couldn’t tell the difference when their pills were replaced with placebos. Read more »
*This blog post was originally published at Science-Based Medicine*
July 27th, 2010 by GarySchwitzer in Better Health Network, Health Policy, News, Opinion, Quackery Exposed, Research
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Kudos to Christopher Snowbeck and the St. Paul Pioneer Press for digging into new Medicare data to report that the state the newspaper serves is out of whack with the rest of the country in how many expensive MRI scans are done on Minnesotans’ bad backs.
Snowbeck artfully captures the predictable rationalization and defensive responses coming from locals who don’t like what the data suggest. Because what they suggest is overuse leading to overtreatment. So here’s one attempt a provider makes to deflect the data:
“The Medicare billing/claims data, which this report is generated from, would not capture conversations between a patient and provider that may have addressed alternative therapies for lower back pain,” said Robert Prevost, a spokesman for North Memorial Health Care. “It’s important to recognize the limitations of this data.”
No, data don’t capture conversations. But wouldn’t it be fascinating to be a fly on the wall during those many patient-physician encounters that led to an MRI to see what level of truly informed shared decision-making (if any) took place? Read more »
*This blog post was originally published at Gary Schwitzer's HealthNewsReview Blog*
July 22nd, 2010 by RamonaBatesMD in Better Health Network, News, Opinion, Quackery Exposed, Research
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I first saw mention of the “vampire facelift” two weeks ago as a news article listed in the July 9th issue of the Plastic Surgery SmartBrief: “Vampire facelift” uses patient’s platelets and fibrin in dermal filler.”
The article begins:
Instead of a traditional facelift, patients are being offered another option to get rid of wrinkles. It’s called Selphyl or the “vampire facelift,” and it uses a person’s own blood to sculpt the face.
Selphyl, according to the company’s website:
The patented SELPHYL® System enables the safe and rapid preparation of an activated Platelet-rich Fibrin Matrix (PRFM). A small volume of the patient’s blood is collected and the platelets and fibrin are concentrated during a simple centrifuge process. The resulting product (liquid, gel or membrane) can be applied to a treatment area of the face or body to stimulate natural, new tissue growth. SELPHYL® prepared PRFM has been shown to increase skin volume and rejuvenation.
SELPHYL® ensures a preparation of fibrin and platelets, with virtually no red or white blood cells. Studies have shown these platelets to be viable and intact. Platelets will release proteins, which have been reported to trigger cell migration, proliferation and differentiation over time.
With over 45,000 procedures performed world-wide, this technology has been extensively used for soft tissue regeneration in plastic surgery, orthopedics and maxillofacial surgery.
So how does Sephyl create any face-lifting effect? Read more »
*This blog post was originally published at Suture for a Living*
June 17th, 2010 by Medgadget in Better Health Network, News, Research
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Felasfa Wodajo, an orthopedic oncologist in Virginia, recently took his iPad into the operating theater to see how it performs in such an environment.
Being one of the editors at iMedicalApps, Dr. Wodajo just published his initial findings and they bode a rather bright clincial future for the iPad, and tablets in general.
SOURCE: iMedicalApps: Test driving the iPad in the hospital Operating Room…
*This blog post was originally published at Medgadget*
May 13th, 2010 by DrRob in Better Health Network, Health Tips, Humor, Medical Art, Opinion, True Stories
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Back to the subject at hand.
To those who are relatively new to this blog, one of the most popular…uh…tolerated series of posts has been my series on the physical exam. If you haven’t done so already, you may want to go back and read the posts to get in the proper mindset (or destroy enough brain cells).
Astute readers will note that doctors are not the only professionals to examine the hand.
Long before we knew anything about carpal tunnel syndrome or the thenar eminence, we had Madam Linda and her cohorts looking at the hand for signs of what the future will bring for the individual that happens to be connected to the hand in question. Just as stars and planets can have a peculiar interest as to whether a person will run into money, the lines on a person’s hand can foreshadow a person’s future. Read more »
*This blog post was originally published at Musings of a Distractible Mind*
