Gastric Bypass Roux-en-Y Surgery
The bariatric surgeons at the Newton-Wellesley Hospital Center for Weight Loss Surgery perform hundreds of gastric bypass surgeries a year on patients from Greater Boston communities and all over New England.
According to the American Society for Metabolic and Bariatric Surgery and the National Institutes of Health, Roux-en-Y gastric bypass is the current gold standard procedure for weight loss surgery. It is one of the most frequently performed weight loss procedures in the United States.
In recent years, better clinical understanding of procedures combining restrictive and metabolic approaches has increased the choices of effective weight loss surgery for thousands of patients. By adding the metabolic component, food is delayed in mixing with bile and pancreatic juices that aid in the absorption of nutrients. The chemical or metabolic change that occurs with bypassing the body of the stomach and the first part of the small intestine results in an early sense of fullness, combined with a sense of satisfaction that reduces the desire to eat.
In this procedure, stapling creates a small (15 to 20cc) stomach pouch. The remainder of the stomach is not removed, but is completely stapled shut and divided from the stomach pouch. The outlet from this newly formed pouch empties directly into the lower portion of the jejunum, bypassing some nutrient absorption and adding the metabolic aspect of this operation. This is done by dividing the small intestine just beyond the duodenum for the purpose of bringing it up and constructing a connection with the newly formed stomach pouch.
The other end is connected into the side of the Roux limb of the intestine creating the "Y" shape that gives the technique its name. The length of either segment of the intestine can be increased to produce lower or higher levels of malabsorption.
Advantages of Gastric Bypass Surgery
- The average excess weight loss after the Roux-en-Y procedure is generally higher in patients committed to their care than with purely restrictive procedures.
- One year after surgery, weight loss can average 77 percent of excess body weight.
- Studies show that after 10 to 14 years, 50 to 60 percent of excess body weight loss has been maintained by some patients.
- A 2000 study of 500 patients showed that 96 percent of certain associated health conditions studied (back pain, sleep apnea, high blood pressure, diabetes and depression) were improved or resolved.
Risks of Gastric Bypass Surgery
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