The Mini Gastric Bypass (MGB) is a reversible, short, simple, and successful laparoscopic gastric bypass weight loss surgery. The procedure has recently been renamed as Single Anastomosis Gastric Bypass. The procedure usually takes less time and requires less or the same amount of hospitalisation as a standard bypass surgery.
The first step is to shrink the stomach so that it can hold less food. Stapling transforms the stomach into a long, slender pouch up to the antral part.
The second step in the surgery is to create a bypass for food to flow from the new stomach pouch. Depending on the surgeon and the patient's metabolic condition, a small intestine loop between 150 and 200 cms is chosen for anastomosis. The "omega loop" is formed by connecting the middle section of the intestine to the opening in the stomach pouch. The loop allows food to bypass the lower stomach, duodenum, and a portion of the small intestine. The incisions are closed with sutures at the end of the procedure.
Advantages of mini gastric bypass surgery: