The bypass in Tunisia is done under general anesthesia. The procedure takes 2 to 3 hours and requires 5 days of hospitalization. The procedure is done by laparoscopic surgery, using 5 small incisions (from 5 to 15 mm) made in the upper abdomen. These incisions are used to introduce the material necessary for the gastric section (the camera, the different instruments and the forceps).
The surgeon begins by cutting the upper part of the stomach. This allows him to make a small gastric pouch, with a capacity of about 25 ml.
Unlike gastric banding, this is an irreversible procedure. Indeed, the small intestine will be sewn onto the small pouch corresponding to the new stomach. This is what is called a bypass.