Weight loss surgery, also called bariatric surgery, can help you lose weight and lower your risk of medical problems associated with obesity. Dr. Aviv Ben-Meir performs three different weight loss surgeries: Roux-en-Y Gastric Bypass, Laparoscopic Vertical Sleeve Gastrectomy, and Laparoscopic Adjustable Gastric Banding, or Lap Band, Surgery. Deciding to have weight-loss surgery isn't easy. We believe it is a brave and difficult choice-one that should be carefully considered knowing that it will change your lifestyle and your life.