With vertical sleeve gastrectomy (VSG), a large part of your stomach is removed, leaving a thin, banana- or sleeve-shaped stomach.
The gastric sleeve surgery works in two basic ways:
- Stomach size is reduced, providing satisfaction with less food
- Hunger hormones are reduced, causing less hunger and interest in food
Gastric sleeve surgery is almost always performed through small incisions. This surgery uses several small incisions instead of one large incision, causing less discomfort. It allows you to return to normal activities more quickly.
During gastric banding surgery, two devices are placed in the belly: an adjustable silicone band and an injection port.
The silicone band is placed around the upper part of the stomach. It molds the stomach into two connected chambers.
The injection port is attached to the belly wall, underneath the skin. The port is connected to the band and is used to add or remove fluid (saline) when the silicone band is adjusted. Adding saline increases the band’s restriction, which helps you feel full sooner and with less food.
With gastric bypass surgery, the doctor creates a smaller stomach pouch. The doctor then attaches a section of your small intestine directly to the smaller pouch. This allows food to bypass, or go around a large portion of the small intestine where calories usually are absorbed.
Having a smaller stomach pouch makes you feel full sooner and eat less food; bypassing a portion of the small intestine means your body will absorb fewer calories.
Biliopancreatic Diversion with Duodenal Switch (BPD-DS) is a procedure that begins with the creation of a tube-shaped stomach pouch similar to the sleeve gastrectomy.
The smaller stomach, shaped like a banana, allows patients to eat less food. Food bypasses about 75% of the small intestine, the most of any commonly performed approved procedures. This results in a significant decrease in the absorption of calories and nutrients. Patients must take vitamins and mineral supplements after surgery.
Single Anastomosis Duodenal-Ileal Bypass with Sleeve Gastrectomy (SADI-S) is a procedure that starts the same way as the sleeve gastrectomy by making a smaller, tube-shaped stomach.
When patients eat, food goes through the pouch and directly into a newly created portion of the small intestine. The food mixes with digestive juices from the first part of the small intestine. This allows enough absorption of vitamins and minerals to maintain healthy nutrition.
