26 August 2008

Other names: vertical sleeve gastrectomy, sleeve gastrectomy, greater curvature gastrectomy, parietal gastrectomy, gastric reduction and vertical gastroplasty.

The vertical gastrectomy, or sleeve gastrectomy, is a type of restrictive weight loss surgery. Vertical gastrectomy surgery causes weight loss by restricting the amount of food that is able to be consumed before feeling full. This procedure is usually performed on superobese or high risk patients with the intention of performing another surgery at a later time.

It can be used as a primary weight loss operation or as a first-stage operation in a 2-stage approach in patients who are extremely obese and may carry significant risks to undergo a one step definitive surgical approach.

The vertical sleeve gastrectomy is a restrictive form of weight loss surgery in which approximately 70-80% of the stomach is removed laparoscopically leaving a cylindrical or sleeve shaped stomach vertically from top to bottom with a capacity ranging from about 60 to 150 cc, depending upon the surgeon performing the procedure.

The stomach still functions as normal, but is much smaller so that people who have this operation must make radical changes in his food intake and lifestyle in order for the procedure to have a successful long-term outcome. Because the stomach has the ability to stretch to accommodate food, the stomach can expand greatly from the one-ounce capacity the surgery allows for. Meals should be small (less than half a cup) and drinking fluids with meals can fill the pouch, preventing the intake of solid food at that time.

The operation is usually done by keyhole surgery and requires a 1-2 night stay in hospital. Most people lose 30-50 percent of their excess weight in the first 12 months. This operation is sometimes carried out as the first step in a two-part procedure for extremely obese people with a BMI of 60 or more, where other procedures are more risky to them. After 12 to 18 months of receiving a sleeve gastrectomy, these people may then go on to have a gastric bypass or duodenal switch.

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