The Mini-Gastric Bypass ( MGB ) procedure is a simple, successful and inexpensive surgical technique in weight loss surgery. The operation usually takes less than one hour and the hospital stay is usually less than 24 hours. With excellent long term weight loss, minimal pain and the option for reversal or revision should the need ever occur, it's not surprising that people from all across America are choosing the Mini-Gastric Bypass as their Laparoscopic Gastric Bypass procedure over other types of weight loss surgery.