This page was last updated/ edited on January 19, 2023. Bariatric surgery has become increasingly common. The most commonly used bariatric surgery procedure at academic medical centers in the US is now laparoscopic sleeve gastrectomy (Esteban Varela and Nguyen, 2015). Roux-en-Y gastric bypass In another bariatric surgery procedure called the Roux-en-Y gastric bypass, a small…