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Bariatric Services

Westchester Medical Center’s bariatric surgery program  facilitates weight loss by restricting food intake or altering intestinal absorption of calories and nutrients (a process referred to as malabsorption). Most procedures accomplish one or the other although the most popular bariatric surgery, Roux-en-Y gastric bypass, achieves both.

Surgical bariatric services do have some risks, but can result in dramatic weight loss and improved overall health, so the benefits can be enormous.

Types of Surgical Bariatric Services

Roux-en-Y Gastric Bypass Surgery (Restrictive and Malabsorptive)

This most commonly performed and highly successful procedure creates a small stomach pouch and then constructs a "bypass" for the small amount of food which is ingested. The smaller stomach area limits the amount of food that can be ingested and the bypass allows that food to skip parts of the small intestine, reducing the amount of calories and nutrients that are absorbed.

Laparoscopic Adjustable Gastric Banding (Restrictive)

Laparoscopic Adjustable Gastric Banding restricts food intake by placing a band around the uppermost part of the stomach, resulting in two stomach sections: one small and one large. With the stomach divided into smaller parts, most patients feel full faster. The band used in this procedure is adjustable in the event that the rate of weight loss is not acceptable. Unlike the Roux-en-Y procedure, digestion and intestinal absorption occur normally.

Biliopancreatic Diversion with Duodenal Switch (BPD/DS) (Malabsorptive)

Malabsorptive procedures reduce the size of the stomach, although it remains a bit larger than with other procedures. The stomach pouch created is connected to the lower part of the small intestine, resulting in diminished absorption of calories and nutrients. There are three malabsorptive procedures that our bariatric services team provides: Biliopancreatic Diversion with Duodenal Switch, Biliopancreatic Diversion and Extended Roux-en-Y gastric bypass surgery.

Biliopancreatic Diversion with Duodenal limits stomach removal to the outer margin and creates a sleeve of stomach. The first portion of the small intestine, the duodenum, is divided so that pancreatic and bile drainage are bypassed.

Sleeve Gastrectomy (Restrictive)

The sleeve gastrectomy removes the left side of the stomach, resulting in a new stomach that is roughly the size and shape of a banana. This operation does not involve any "rerouting" or reconnecting the intestines, and is a simpler operation than the gastric bypass or the duodenal switch.

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