Sleeve Gastrectomy Surgery

Sleeve Gastrectomy SurgerySleeve gastrectomy surgery is a restrictive weight loss surgery where up to 85 percent of the stomach is removed to reduce hunger and promote weight loss. The sleeve gastrectomy procedure is also known as the gastric sleeve surgery and the vertical sleeve gastrectomy. Unlike duodenal switch and gastric bypass, this bariatric procedure does not require alterations to the small intestine.

During the gastric sleeve procedure, a large portion of the stomach is physically removed from the body. The remaining portion of the stomach is left in a banana-shaped sleeve that stretches from the base of the esophagus to the small intestine.

By permanently reducing the stomach’s size, the gastric sleeve procedure reduces stomach capacity, thus reducing the amount of food that can be comfortably consumed at one time. The removal of stomach tissue also reduces the production of hormones that contribute to hunger.

Benefits of Sleeve Gastrectomy Surgery

By physically removing part of the stomach, the gastric sleeve procedure takes a two-fold approach to promoting weight loss by reducing stomach capacity and reducing hunger hormone production.

Gastric sleeve surgery helps patients lose an average of 55 percent of their excess body weight.

Other benefits of sleeve gastrectomy surgery include:

  • No post-surgical adjustments required (unlike Lap Band surgery).
  • Does not alter the digestive tract, allowing the digestion process to continue normally and reducing risk of nutrient and vitamin deficiency common after malabsorptive bariatric procedures.


Buchwald, H., Avidor, Y., Braunwald, E., Jensen, M. D., Pories, W., Fahrbach, K., & Schoelles, K. (2004).

Bariatric surgery: A systematic review and meta-analysis. Journal of the American Medical Association, 292(14), 1724-1728.