Gastric bypass surgery is a safe and effective procedure that can help you lose weight quickly and maintain a healthy body mass index over the long term. Evidence shows that the surgery may even reverse related metabolic diseases such as Type 2 diabetes and give you a longer, healthier life.
The Roux-en-Y gastric bypass surgery works both by restricting stomach capacity and by reducing calorie absorption into the body. Staples are used to isolate a small pouch approximately 1-2 ounces in volume at the top of the stomach, which limits food intake. The small bowel, or jejunum, is then attached to the pouch, effectively rerouting food away from the larger portion of the stomach and the upper small intestines, where most calories are processed and absorbed.
On average, more than half of patients lose 70% or more of their extra weight and then start to maintain. Long-term success is dependent on accepting new rules for eating and food selection, which is taught in the follow-up period after surgery.
Potential complications can include nausea/vomiting and small bowel obstructions.