Gastric Bypass Surgery
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Metabolic and Bariatric Surgery

The Metabolic and Bariatric Surgery Program at Mount Sinai is an innovative, multidisciplinary program designed to treat obesity and the numerous health problems that accompany conditions associated with it, such as Type 2 diabetes. New research suggests that both diabetes and obesity may in fact be diseases of the gastrointestinal tract. Surgical modification of the stomach and intestines, such as bariatric surgery, may result in substantial improvements in both these conditions. Coordinated by the Division of Metabolic, Endocrine and Minimally Invasive Surgery, the Program includes a tightly integrated group of advanced laparoscopic and minimally invasive endocrine surgeons, working in conjunction with internal medicine specialists, endocrinologists, cardiologists, diabetologists, psychiatrists, nurse practitioners, and nutritionists. This distinguished team provides a broad spectrum of both traditional and advanced procedures to treat diabetes and obesity.

Weight Loss and Bariatric Surgery Options

The Mount Sinai Metabolic and Bariatric Program offers both established and advanced procedures to its patients. Established minimally invasive operations such as gastric bypass, sleeve gastrectomy, adjustable gastric banding, and duodenal switch, are available for patients with a body mass index (BMI) of 35 or more. Patients suffering from diabetes and milder obesity, with a BMI of 30-35, may qualify for one of several investigational procedures currently being performed under a research protocol.

The following four procedures are currently available to treat diabetes and obesity. To determine which surgery is most appropriate, it is necessary to evaluate each patient's height, weight, and medical problems, while also taking into consideration his or her lifestyle. Most operations performed at Mount Sinai use laparoscopic, minimally invasive techniques.

  • Gastric Bypass: An established operation that has been used to treat obesity for more than 40 years, the gastric bypass entails creating a small stomach pouch and bypassing three to five feet of intestine. Obese patients typically lose 50-75 percent of their excess weight. Type 2 diabetes is resolved in 80 percent of patients.

  • Adjustable Gastric Band (LAP-BANDâ„¢): The adjustable gastric band is wrapped around the upper stomach, restricting the stomach's food capacity. The amount of restriction is adjusted by injecting saline solution into a small access port located under the skin. Patients typically lose 40-50 percent of their excess weight. Diabetes is resolved in 50-60 percent of patients.

  • Sleeve Gastrectomy: During this procedure, the left side of the stomach is removed, leaving a stomach roughly the size and shape of a banana. Weight loss is similar to gastric bypass, and Type 2 diabetes resolves in 60 percent of patients.

  • Biliopancreatic Diversion with Duodenal Switch (BPD-DS): A sleeve Gastrectomy is performed and a large amount of small intestine is bypassed, resulting is decreased absorption of nutrients. Weight loss is typically slightly better than gastric bypass, and Type 2 diabetes resolves in over 90 percent.

Explore the metabolic procedures gallery to learn more about these treatments.

Weight Loss Clinical Trials

In addition to the established procedures, Mount Sinai Metabolic is evaluating several investigational operations to treat diabetes and obesity. Additionally, we are studying established procedures in patient populations that have not traditionally qualified for bariatric surgery operations. Please contact us at (212) 241-3309 for additional information.

To learn more, please visit contact us at 212-241-3309 to learn about our program and the operations we offer. We also offer, free of charge, a series of online seminars to improve your understanding of bariatric surgery.


Contact Us

Tel: 212-824-2350
Fax: 212-202-4713

Metabolic Endocrine and
Minimally Invasive Surgery

1470 Madison Ave at 101st Street
3rd Floor (Mail Box 1259)
New York, NY 10029

17 East 102nd Street
(between Fifth Ave & Madison Ave)
5th Floor (Mail Box 1259)
New York, NY 10029

Related Resource

For more information about our program, please visit SurgicallySlim.