Obese patients loss more weight with bariatric surgery than with medical weight loss treatment. ‎The laparoscopic Roux-en-Y gastric bypass procedure results in more short term weight loss ‎than laparoscopic adjustable gastric banding, but the latter has fewer postoperative ‎complication and lower mortality rate; long term comparative data are currently lacking. The ‎decision regarding which procedure to perform should be based on individual patient and ‎surgeon factors.‎
Early complications of gastric bypass surgery are bleeding, anastomotic leak, wound infection, ‎thromboembolism, and anastomotic stricture. Longer term complication scan include marginal ‎ulcers, bowel obstruction, gallstones, and nutritional deficiencies.‎
Complication of adjustable gastric banding includes prolapsed and erosion. Patient typically ‎loses more than 50% of their excess weight after bariatric surgery. Obesity related diseases ‎markedly improve after bariatric surgery, reducing cardiovascular risk and improving life ‎expectancy. Patient undergoing bariatric surgery must commit to a program of lifestyle ‎changes, diet, vitamin supplementation, and follow-up.‎