What is gastric bypass weight-loss surgery?
Roux-en-Y gastric bypass (RYGB) is a type of weight-loss surgery. Weight-loss surgery is also called bariatric surgery. It’s often done as a laparoscopic surgery, with small incisions in the abdomen.
This surgery reduces the size of your upper stomach to a small pouch about the size of an egg. The surgeon does this by stapling off the upper section of the stomach. This reduces the amount of food you can eat. The surgeon then attaches this pouch directly to part of the small intestine called the Roux limb. This forms a “Y” shape. The food you eat then bypasses the rest of the stomach and the upper part of your small intestine. This reduces the amount of fat and calories you absorb from the foods you eat. It also reduces the amount of vitamins and minerals you absorb from food.
Why might I need gastric bypass weight-loss surgery?
Gastric bypass surgery is used to treat severe obesity. It’s advised for people who have tried other weight loss methods without long-term success. Your doctor may advise gastric bypass surgery if you are severely obese with a body mass index (BMI) over 40. Your doctor may also advise it if you have a BMI between 35 and 40 and a health condition such as sleep apnea, high blood pressure, heart disease, or type 2 diabetes.
Gastric bypass can help a person lose about 100 pounds of excess weight. It may also reverse type 2 diabetes and stop heartburn and reflux. Weight-loss surgery can also lower the risk for high blood pressure, sleep apnea, and certain heart problems.
What are the risks of gastric bypass weight-loss surgery?
Bleeding, infection, and blood clots in your legs are possible side effects that may occur after any surgery. General anesthesia may also cause breathing problems or other reactions. You may also have leaks from the stomach pouch or the Roux limb.