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Effectiveness of Bariatric Surgery

According to updated analyses of the effects of weight-loss surgery from 164 studies, following 161,756 patients aged about 46 with a BMI of 46, BMI loss five years after surgery ranged from 12% to 17%, complication rates ranged from 10% to 17%, and the reoperation rate was about 7%. Among different surgical procedures, gastric bypass was more effective for weight loss but was associated with more complications; adjustable gastric banding had lower death and complication rates but reoperation rates were higher and weight loss was less than gastric bypass; and sleeve gastrectomy appeared to be more effective for weight loss than adjustable gastric banding and comparable with gastric bypass. JAMA Surgery, published online Dec. 18, 2013