JACOPIN / BSIP / SCIENCE PHOTO LIBRARY JACOPIN / BSIP / SCIENCE PHOTO LIBRARY
Illustration of the gastric band technique, surgical treatment of obesity. It involves tightening the band around the upper part of the stomach so that it is divided in two like an hourglass : a small pouch above the band quickly fills with food and rapidly produces a sated feeling. The rest of the stomach below the band forms a second pouch in which food passes slowly before being digested in the usual way.
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