 “Sleeve gastrectomy had the lowest complication and reoperation rates of the three (main weight-loss surgery) procedures...The percentage of procedures requiring reoperations due to complications was 15.3 percent for the gastric band, 7.7 percent for gastric bypass and 1.5 percent for sleeve gastrectomy,” according to a 2012 study by the American Society for Metabolic and Bariatric Surgery.Over a 10-year study while using a common data model to allow for comparisons, 8.94% of patients who received a sleeve gastrectomy required some form of reoperation within 5 years compared to 12.27% of patients who received a Roux-en-Y gastric bypass.Both of the effects were fewer than those reported with adjustable gastric banding.