Vertical Sleeve Gastrectomy is a surgical weight-loss procedure in which the stomach is reduced to about 25% of its original size, by surgical removal of a large portion of the stomach, following the major curve. The open edges are then attached together (often with surgical staples) to form a sleeve or tube with a banana shape. The procedure permanently reduces the size of the stomach. The procedure is performed laparoscopically and is not reversible.
The earliest forms of this procedure were conceived of by Dr. Jamieson in Australia (Long Vertical Gastroplasty, Obesity Surgery 1993)– and by Dr. Johnston in England in 1996 (Magenstrasse and Mill operation- Obesity Surgery 2003). Dr Gagner in New York, refined the operation to include gastrectomy(removal of stomach) and offered it to high risk patients in 2001. Several surgeons worldwide have adopted the procedure and have offered it to low BMI and low risk patients as an alternative to laparoscopic banding of the stomach.
It generates weight loss by restricting the amount of food (and therefore calories) that can be eaten by removing 85% or more of the stomach without bypassing the intestines or causing any gastrointestinal malabsorption. It is a purely restrictive operation. It is currently indicated as an alternative to the Lap-Band® procedure for low weight individuals and as a safe option for higher weight individuals.