Mini-Gastric Bypass is a minimally invasive procedure that partitions the stomach into a long, narrow tube and a separate larger piece. The smaller stomach is attached about 6 feet down in the small intestine. The larger stomach is sealed and left unattached. MGB has been found to be safer than other kinds of bariatric surgery.
The smaller stomach decreases the amount the patient can eat and the bypass of a portion of the small intestine decreases the the absorption of fat and calories. This combination of smaller volume and decreased absorption has resulted in an average weight loss of 140 pounds in one year in a 300-pound patient.
The surgery is done in 45 minutes approximately. The recovery is a very fast since the procedure is done by laparoscopy. The patient will be walking 2 or 3 hours post-op and will be discharged from the hospital in 24-48 hours after the surgery.
The relative weights of the risks and benefits will differ for each patient. Anyone considering MGB (or any other bariatric surgery), in cooperation with his or her family Doctor and a Doctor qualified to perform MGB, should make very effort to learn about how the surgery fits with his or her lifestyle