Is an anesthesiologist needed for routine colonoscopies? Maybe not.

For many Americans, the prospect of a colonoscopy is unnerving and patients often find comfort knowing sedation will make the procedure as simple as a brief nap. Around the world, however, up to 80 percent of routine colonoscopies are done without any sedation at all. So, is an anesthesiologist really necessary in the U.S. for healthy people? One may be ...

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