Surgical treatment for morbid obesity

of evidence • Patients undergoing various bariatric surgical procedures lost an average of 61.2% of their excess weight (varying from 47.5% for gastric banding to 70.1% for biliopancreatic diversion or duodenal switch procedures) • Perioperative mortality was relatively low (varying from 0.1% for banding, 0.5% for bypass, to 1.1% for biliopancreatic diversion or duodenal switch) • Most patients had resolution of or improvement in comorbid conditions; most notably, resolution of diabetes was 98.9% for biliopancreatic diversion or duodenal switch, 83.7% for gastric bypass, 71.6% for gastroplasty, and 47.9% for gastric banding