
The Vertical Sleeve Gastrectomy generates weight loss by restricting the amount of food that can be eaten without bypassing any of the intestines or malabsorption. Sleeve gastrectomy is ideal for patients who have very high medical risk, high weight or BMI, complex surgical histories or those who are fearful of potential complications from an intestinal bypass. This surgery is also ideal for lower BMI patients who wish to avoid a more complex intestinal bypass or are fearful of “cheating” the gastric band.
Patients who undergo sleeve gastrectomy avoid the possibility of vitamin and nutritional deficiencies because the intestines remain intact. This is a restrictive procedure in which approximately 85% of the stomach is removed. This is not reversible. The stomach that remains is shaped like a banana and measures from 2 to 5 ounces. The nerves to the stomach and the outlet valve (pylorus) remain intact thus preserving the functions of the stomach while reducing the volume. This surgery greatly reduces production of the “hunger hormone” Grehlin. The result is a decreased appetite and hunger sensation. Weight loss with Gastric Sleeve is faster than with the adjustable gastric band and slower than with the gastric bypass.
Sleeve patients can anticipate losing 50% of their excess body weight in the first year, bypass patients up to 70%, and band patients 20-30% of excess body weight. However, because Gastric Sleeve is considered investigational, most insurance companies will not cover this surgery. The same was true of Lap-Band when it was first available, and we anticipate more and more insurers will extend their bariatric benefits to sleeve gastrectomy. This procedure, like gastric banding and gastric bypass, is done laparoscopically. Laparoscopic surgery reduces the length of hospital stay and greatly reduces the incidence of many complications. All surgery carries risk, and complications can occur. We will discuss all surgical risks and the risks unique to Laparoscopic Sleeve Gastrectomy with you in your pre-op education classes.