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Laparoscopic Sleeve Gastrectomy

This procedure generates weight loss solely through gastric restriction (reduced stomach volume). The stomach is divided vertically, with more than 85 percent of it being removed. This part of the procedure is not reversible. The remaining portion of the stomach is shaped like a very slim banana and measures between 1-5 ounces (30-150cc), depending on the surgeon performing the procedure. The nerves to the stomach and the outlet valve (pylorus) remain intact with the idea of preserving the functions of the stomach while drastically reducing its volume.

This is a relatively new procedure that can be used as a stand alone procedure for those with lower BMIs or as a staged procedure for high-risk patients with high BMIs. The advantage to this type of procedure is that there is a low risk of malnutrition, diarrhea, anemia, dumping syndrome or vitamin loss and therefore is an alternative for patients with anemia, Crohn’s and other conditions that make them too high-risk for the Gastric Bypass.

As a restrictive procedure, the sleeve gastrectomy performs in a similar manner to the gastric band but without the high maintenance of having an implanted device requiring adjustments.