The operation used in the study, adjustable gastric banding, is performed through small slits and loops a band around the top of the stomach to cinch it into a small pouch so that people eat less and yet feel full.

• 这次研究中的术式，是采取的调整性胃部束带手术，通过小的切口使用环状物将一个束带在胃底部固定并将胃的容积缩小，这样即使吃的东西比原来少了，患者仍然会产生饱胀感。