You are currently browsing the daily archive for July 30th, 2009.

Beware the Spinal Trap

Some practitioners claim it is a cure-all, but the research suggests chiropractic therapy has mixed results – and can even be lethal, says Simon Singh.
Simon Singh

On 29th July a number of magazines and websites are going to be publishing Simon Singh’s Guardian article on chiropractic from April 2008, with the part the BCA sued him for removed.

They are reprinting it, following the lead of Wilson da Silva at COSMOS magazine, because they think the public should have access to the evidence and the arguments in it that were lost when the Guardian withdrew the article after the British Chiropractic Association sued for libel.

We want as many people as possible around the world to print it or put it live on the internet at the same time to make an interesting story and prove that threatening libel or bringing a libel case against a science writer won’t necessarily shut down the debate.

You might be surprised to know that the founder of chiropractic therapy, Daniel David Palmer, wrote that “99% of all diseases are caused by displaced vertebrae”. In the 1860s, Palmer began to develop his theory that the spine was involved in almost every illness because the spinal cord connects the brain to the rest of the body. Therefore any misalignment could cause a problem in distant parts of the body.

In fact, Palmer’s first chiropractic intervention supposedly cured a man who had been profoundly deaf for 17 years. His second treatment was equally strange, because he claimed that he treated a patient with heart trouble by correcting a displaced vertebra.

You might think that modern chiropractors restrict themselves to treating back problems, but in fact some still possess quite wacky ideas. The fundamentalists argue that they can cure anything, including helping treat children with colic, sleeping and feeding problems, frequent ear infections, asthma and prolonged crying – even though there is not a jot of evidence.

I can confidently label these assertions as utter nonsense because I have co-authored a book about alternative medicine with the world’s first professor of complementary medicine, Edzard Ernst. He learned chiropractic techniques himself and used them as a doctor. This is when he began to see the need for some critical evaluation. Among other projects, he examined the evidence from 70 trials exploring the benefits of chiropractic therapy in conditions unrelated to the back. He found no evidence to suggest that chiropractors could treat any such conditions.

But what about chiropractic in the context of treating back problems? Manipulating the spine can cure some problems, but results are mixed. To be fair, conventional approaches, such as physiotherapy, also struggle to treat back problems with any consistency. Nevertheless, conventional therapy is still preferable because of the serious dangers associated with chiropractic.

In 2001, a systematic review of five studies revealed that roughly half of all chiropractic patients experience temporary adverse effects, such as pain, numbness, stiffness, dizziness and headaches. These are relatively minor effects, but the frequency is very high, and this has to be weighed against the limited benefit offered by chiropractors.

More worryingly, the hallmark technique of the chiropractor, known as high-velocity, low-amplitude thrust, carries much more significant risks. This involves pushing joints beyond their natural range of motion by applying a short, sharp force. Although this is a safe procedure for most patients, others can suffer dislocations and fractures.

Worse still, manipulation of the neck can damage the vertebral arteries, which supply blood to the brain. So-called vertebral dissection can ultimately cut off the blood supply, which in turn can lead to a stroke and even death. Because there is usually a delay between the vertebral dissection and the blockage of blood to the brain, the link between chiropractic and strokes went unnoticed for many years. Recently, however, it has been possible to identify cases where spinal manipulation has certainly been the cause of vertebral dissection.

Laurie Mathiason was a 20-year-old Canadian waitress who visited a chiropractor 21 times between 1997 and 1998 to relieve her low-back pain. On her penultimate visit she complained of stiffness in her neck. That evening she began dropping plates at the restaurant, so she returned to the chiropractor. As the chiropractor manipulated her neck, Mathiason began to cry, her eyes started to roll, she foamed at the mouth and her body began to convulse. She was rushed to hospital, slipped into a coma and died three days later. At the inquest, the coroner declared: “Laurie died of a ruptured vertebral artery, which occurred in association with a chiropractic manipulation of the neck.”

This case is not unique. In Canada alone there have been several other women who have died after receiving chiropractic therapy, and Edzard Ernst has identified about 700 cases of serious complications among the medical literature. This should be a major concern for health officials, particularly as under-reporting will mean that the actual number of cases is much higher.

If spinal manipulation were a drug with such serious adverse effects and so little demonstrable benefit, then it would almost certainly have been taken off the market.

Dan Neil has an article at the LA Times over Scientology’s increasing PR push-back:

The Church of Scientology has had a bad couple of years, PR-wise. You could start the damage-control clock running in January 2008 with the release of the Scientology indoctrination video featuring Tom Cruise — you know, black turtleneck, eyes spinning — claiming that Scientologists are the only ones who could really help at an accident scene. This summer the church was tried for fraud in France. In May, Wikipedia said it would ban entries originating from Scientology IP addresses on account of the church’s self-serving wiki-revisionism. And last month the St. Petersburg Times published a devastating four-part expose of Scientology’s tiny tyrant David Miscavige, based on testimony from four former high-ranking executives in the church.

William Saletan’s article at Slate, The Culture of Death, covers the somewhat disturbing divide between pragmatists and militants in the pro-life movement:

While some extremists have been raising hell and shooting doctors, pragmatists have been hashing out common-ground legislation. Their latest bill, introduced Thursday, is the Preventing Unintended Pregnancies, Reducing the Need for Abortion, and Supporting Parents Act. If that sounds like a jumble of ideas from both sides, it’s because lots of bargaining went into it. Among other things, pro-choicers got money for contraception and sex education. Pro-lifers got abstinence-friendly curriculum, a bigger adoption tax credit, and financial support for women who continue their pregnancies.

The two sides talked, listened, and compromised. Pro-lifers couldn’t stand postcoital birth-control pills, fearing they might kill early embryos. The fear was unwarranted, but pro-choicers agreed to leave the pills out. Pro-choicers couldn’t stand even the vaguest legislative description of what doctors should tell patients. That anxiety, too, was unnecessary, but pro-lifers agreed to drop the language. Pro-choicers hated abstinence-only education but agreed to fund “evidence-based programs that encourage teens to delay sexual activity.” Pro-lifers wanted women to see prenatal ultrasound images but settled for money to make the machines more widely available.

Hunter and other pro-life pragmatists signed on, too. But the militant old guard of the pro-life movement didn’t. The militants, led by the National Right to Life Committee, call the bill a “scam.” According to NRLC Legislative Director Doug Johnson, the bill’s real goal is “financial gains for the abortion industry.” How could abortion-reducing legislation help the “abortion industry”? By funding contraception. If you run an organization dedicated to avoiding unplanned pregnancy but in 3 percent of cases you provide abortions to women who ask for them, you’re the “abortion industry.” And any bill that funds your pregnancy prevention services, even with the legal understanding that you’re forbidden to spend the money on anything else, is a “bailout for the abortion industry.”

So apparently abortion reduction isn’t enough. In fact, in lieu of total prohibition, any reduction is a sell-out. It hardly seems to be about life then, huh?

On unrelated but equally political grounds, UK government appears to be considering banning “intelligence-enhancing drugs.”

And for something almost completely different, George Dyson essay on Game Theory and Economic Misbehavior.

Starts with a Bang has a great post on how Mobile Alabama schools “lost its mind.” . I remember these sorts of sexual slit being proposed in seriousness when I was in education graduate school.

 

July 2009
M T W T F S S
« Apr   Aug »
 12345
6789101112
13141516171819
20212223242526
2728293031  

free debate
Scarlet Letter of Atheism