Over a year ago my wife and I were on a cavalcade. Present on the same cavalcade was a woman who was an equine vet. While we were discussing various 'alternative' treatments and such she happened to say “but I'm a real believer in the power of placebo, though…”. I found that statement a little surprising, coming from (I assume) a qualified medical person, but perhaps in a way this is telling.
Truly understanding placebo effects (note the plural) is critical to science-based medicine.
Darcy Cowan takes another look at a subject that just won't go away.
Hard on the heels of the Bent Spoon awarded to the Poisoning Paradise 'documentary', the NZ Herald has produced an appalling piece on alleged pesticide poisoning of people and wildlife in Auckland (27 September).
Justin Vodane's letter (NZ Skeptic 91) is a classic defence of the indefensible.
Placebos may contain no active ingredients, but they have real effects on the human brain. This article is based on a presentation to the NZ Skeptics 2008 conference in Hamilton, September 26-28.
A surgeon claimed that an alcohol-based hand wash had been responsible for a failed evidential breath alcohol test (EBA). He had been operating all day, went home, had two glasses of wine went out again, and failed an EBA. He argued that "the moderate amount he had drunk was not enough to have put him over the limit." He claimed that an alcohol-based hand wash had been absorbed by his skin. What was he doing? Drinking it?
It has become a cliché that whenever something bad happens, a horde of counsellors descend on the survivors to make their lives a misery. It's true. Counselling does make you more sick compared to doing nothing.
PHARMAC is the Government drug-purchasing agency. Pharmac's 2005 Annual Review showed that about eight prescription items were issued per adult in that year. In the course of my work I write a lot of prescriptions but I certainly don't consume eight scripts per year.
A drug company has been perplexed at a shortage of Vitamin B12 created by a surge in use. A spokesman for the company said "doctors had so far failed to come up with a convincing explanation" and "Vitamin B12 was also used to treat chronic fatigue syndrome (CFS) and as a vitamin booster."
Some doctors see a problem and look for an answer. Others merely see a problem. The diffident doctor may do nothing from sense of despair. This, of course, may be better than doing something merely because it hurts the doctor's pride to do nothing.
If the caring practitioner has no idea of what to do next, the decision may be best left in the hands of the Almighty. Too many clinicians, unfortunately, are unable to resist giving God a hand with the decision-making.
John Welch finds that the sexual abuse industry rolls on unabated.
The placebo effect has long been of interest to skeptics for its presumed role in alternative medicine. The Skeptics' Dictionary (http://www.skepdic.com) has a lengthy entry, describing a placebo as an inert substance, or fake surgery or therapy, used as a control in an experiment or given to a patient for its probable beneficial effect. It goes on to add the effect has at least three components.
Many people will remember Dr Bill Morris's entertaining autobiographical talk at the last Skeptics' conference in Wellington. From his presentation, we extract this discussion of what is still the most persistent and potent medical effect known to the human race.
Myocardial infarction (heart attack, coronary thrombosis) is commonly caused by a blood clot blocking one of the three coronary arteries supplying blood to the heart muscle. It is the commonest cause of death (4,000 p.a.) in New Zealand and other Western countries. Specialists have long wondered whether early administration of a fibrinolytic (blood clot dissolving drug) would reduce mortality.
In your November 1987 issue, Dennis Dutton (page 3) asks whether it matters that sick people, especially cancer sufferers, are not discouraged from using "alternative" or "complementary" treatments, The answer of course is the one that he himself has given: it does and it doesn't.