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Archive for September 2nd, 2009

IVF and CAM Use

Perhaps the biggest hurdle to broader acceptance of the need for a consistent scientific basis for medical interventions is the attitude that worthless treatments are harmless. I often have the experience, after reviewing the evidence showing lack of efficacy for a specific intervention, of getting the head-tilt and shrug along with some variation of the dismissive attitude,  “Well, if people feel better, then what’s the harm?” In my opinion, ethics and intellectual honesty indicate that we have to do better than that.

The “what’s the harm” refrain is so tired and overused that it prompted a website by that name, documenting direct harm caused by unscientific treatment modalities. This is a helpful reminder that any intervention that actually does something (has biological activity) must also contain some risks. But this site also has significant limitations. First, it is anecdotal. But also it emphasizes direct harm, while the indirect harm of unscientific methods (for example by delaying definitive treatment) likely vastly outweighs the direct harm. However, indirect harm is extremely difficult to quantify.

Studies looking at the net clinical effects of using or relying upon unscientific methods is therefore desirable. Recently Danish researchers have published one such study:  Use of complementary and alternative medicines associated with a 30% lower ongoing pregnancy/live birth rate during 12 months of fertility treatment.

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Posted in: Science and Medicine

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