Posts Tagged chronic pain

“Non-pharmacological treatments for pain” ≠ CAM, no matter how much NCCIH wishes it so

NCCIH #TalkPain

I’ve had the Monday spot on this blog for quite a long time now. While there are many advantages to posting on Monday, not the least of which is having more time to put a post together (although that is also a disadvantage because it incentivizes my taking more time than I sometimes should), one distinct disadvantage is that all the Monday holidays are mine. That leaves me a choice on, for example, Memorial Day and Labor Day every year. It’s a choice with three options: The first is: Don’t post. (Do stop laughing, please. I know it’s me.) The second is: Use a guest post. I thought about this, and there are guest posts in the pipeline, but I don’t like to use a guest post just because I’m feeling lazy. It strikes me as an abuse of being the managing editor. Finally, I could post, which is what I decided to do.

I mainly decided to do a post because late last week there was something to blog about that was pretty important and interesting, courtesy of the National Center for Complementary and Integrative Health (NCCIH), which was formerly known as the National Center for Complementary and Alternative Medicine (NCCAM). Basically, on September 1, the NCCIH published a press release, “Review Examines Clinical Trial Evidence on Complementary Approaches for Five Painful Conditions.” Elsewhere, NCCIH Lead Epidemiologist and first author of the review, Richard Nahin, PhD, MPH, bragged on the NCCIH blog, “New Review Offers Providers and Researchers Evidence-Based Information on Complementary Health Approaches for Pain.” It didn’t take long for headlines to start appearing that said things like:

Posted in: Acupuncture, Clinical Trials, Medical Academia, Politics and Regulation

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Keep Naturopathy Out of the VA!

Let's not change the eagle into a duck

Let’s not change the eagle into a duck

AMVETS has joined with The American Association of Naturopathic Physicians in seeking to “promote natural, non-pharmacological approaches to treating patients suffering from chronic pain.” They are petitioning Congress and the VA to authorize bringing licensed NDs into the VA system. As a veteran myself, a retired Air Force Colonel and an MD, I find this appalling. During my twenty years service in the U.S. Air Force as a family physician and flight surgeon, I took pride in the high-quality science-based medical care my colleagues and I were able to provide. This proposal would jeopardize the welfare of our veterans by exposing them to substandard care with irrational, untested, and potentially harmful treatments. Letting naturopaths into the VA would be a grave mistake. (more…)

Posted in: Naturopathy, Politics and Regulation

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Mind Over Matter: The Brain’s Way of Healing

The Brain's Way of HealingIn 2008 I wrote about neuroplasticity as presented in Norman Doidge’s book The Brain That Changes Itself. I urge you to click on the link and read what I wrote there before you continue. The science is fascinating. The brain is far more malleable than we once thought. Areas of the cortex devoted to a sensory input shrink when that input is lost. Neurons from other parts of the brain can be co-opted to take over lost functions. Learning a new skill actually changes the structure and function of the brain: the areas of the cortex devoted to that skill enlarge as the new skill is practiced and perfected.

This is exciting stuff, with potential therapeutic applications in chronic pain, brain damage, and chronic illness. When I reviewed that book, I said I thought Doidge was a bit overenthusiastic; and now he has written a follow-up book that is even more overenthusiastic. In The Brain’s Way of Healing: Stories of Remarkable Recoveries from the Frontiers of Neuroplasticity, he slips into unscientific speculations and relies on anecdotes about patients who have allegedly benefited from practical applications of brain plasticity science. The title is accurate: these are stories, not scientific studies. I continue to find the subject fascinating and to believe that neuroplasticity offers a lot of potential for human healing, but I don’t believe we have learned much about practical ways to accomplish that. Doidge’s book goes beyond the science. (more…)

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

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Chronic Pain: A Disease in its Own Right

Melanie Thernstrom has written a superb book based on a historical, philosophical, and scientific review of pain: The Pain Chronicles: Cures, Myths, Mysteries, Prayers, Diaries, Brain Scans, Healing, and the Science of Suffering. Herself a victim of chronic pain, she brings a personal perspective to the subject and also includes informative vignettes of doctors and patients she encountered at the many pain clinics she visited in her investigations. She shows that medical treatment of pain is suboptimal because most doctors have not yet incorporated recent scientific discoveries into their thinking, discoveries indicating that chronic pain is a disease in its own right, a state of pathological pain sensitivity.

Chronic pain often outlives its original causes, worsens over time, and takes on a puzzling life of its own… there is increasing evidence that over time, untreated pain eventually rewrites the central nervous system, causing pathological changes to the brain and spinal cord, and that these in turn cause greater pain. Even more disturbingly, recent evidence suggests that prolonged pain actually damages parts of the brain, including those involved in cognition. (more…)

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

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Acupuncture, the P-Value Fallacy, and Honesty

Credibility alert: the following post contains assertions and speculations by yours truly that are subject to, er, different interpretations by those who actually know what the hell they’re talking about when it comes to statistics. With hat in hand, I thank reader BKsea for calling attention to some of them. I have changed some of the wording—competently, I hope—so as not to poison the minds of less wary readers, but my original faux pas are immortalized in BKsea’s comment.

Lies, Damned Lies, and…

A few days ago my colleague, Dr. Harriet Hall, posted an article about acupuncture treatment for chronic prostatitis/chronic pelvic pain syndrome. She discussed a study that had been performed in Malaysia and reported in the American Journal of Medicine. According to the investigators,

After 10 weeks of treatment, acupuncture proved almost twice as likely as sham treatment to improve CP/CPPS symptoms. Participants receiving acupuncture were 2.4-fold more likely to experience long-term benefit than were participants receiving sham acupuncture.

The primary endpoint was to be “a 6-point decrease in NIH-CSPI total score from baseline to week 10.” At week 10, 32 of 44 subjects (73%) in the acupuncture group had experienced such a decrease, compared to 21 of 45 subjects (47%) in the sham acupuncture group. Although the authors didn’t report these statistics per se, a simple “two-proportion Z-test” (Minitab) yields the following:

Sample X   N   Sample p

1            32  44   0.727273

2           21  45   0.466667

Difference = p (1) – p (2)

Estimate for difference: 0.260606

95% CI for difference: (0.0642303, 0.456982)

Test for difference = 0 (vs not = 0): Z = 2.60 P-Value = 0.009

Fisher’s exact test: P-Value = 0.017

Wow! A P-value of 0.009! That’s some serious statistical significance. Even Fisher’s more conservative “exact test” is substantially less than the 0.05 that we’ve come to associate with “rejecting the null hypothesis,” which in this case is that there was no difference in the proportion of subjects who had experienced a 6-point decrease in NIH-CSPI scores at 10 weeks. Surely there is a big difference between getting “real” acupuncture and getting sham acupuncture if you’ve got chronic prostatitis/chronic pelvic pain syndrome, and this study proves it!


Posted in: Acupuncture, Clinical Trials, Science and Medicine

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