One-anastomosis gastric bypass, also known as mini gastric bypass, is a type of bariatric surgery that helps individuals with obesity achieve significant weight loss and improve their overall health.

During this procedure, a small pouch is created at the top of the stomach, restricting the amount of food that can be consumed. The procedure is performed using minimally invasive techniques, such as laparoscopy or robotic-assisted surgery. This approach involves making small incisions instead of a large abdominal incision, resulting in reduced scarring, less pain, faster recovery, and a shorter hospital stay.

Benefits of this surgery can include significant weight loss, improvement or resolution of obesity-related health conditions such as type 2 diabetes, high blood pressure, and sleep apnea, as well as an overall improvement in quality of life.