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Biliopancreatic Diversion with Duodenal Switch Gastric Bypass

Biliopancreatic limb with intact pyloric valve stomach juices
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Biliopancreatic Diversion with Duodenal Switch Gastric Bypass

This bariatric variant of the regular biliopancreatic bypass leaves a larger portion of the stomach intact, including the pyloric valve which regulates the release of stomach contents into the small intestine.

Duodenal Switch Bypass Procedure

This is a longer, more complicated stomach bypass procedure. The bariatric surgeon partially resects the stomach leaving a smaller pouch (about 6 ounces capacity) which restricts food intake. The small intestine is then divided, with one end attached to the stomach pouch forming the "alimentary limb." All food ingested into the stomach passes down this segment which completely bypasses the duodenum and the jejunum. Meanwhile, the digestive juices from the pancreas and stomach, regulated by the pyloric valve at the stomach exit, are channeled through the "biliopancreatic limb," which meets the "alimentary limb" thus forming a common limb at which point some calorie and nutritional absorption then occurs.

Different to Biliopancreatic Diversion

The duodenal switch operation differs from regular biliopancreatic diversion surgery mainly because the pyloric valve, which regulates the release of stomach contents into the small intestine, is included in the "biliopancreatic limb", facilitating greater nutritional uptake. Also, more of the stomach is left intact, thus allowing stomach juices to assist in nutrient absorption in the "common limb".

Weight Loss After Duodenal Switch Bypass

On average, patients who have malabsorptive bypass surgery, like duodenal switch bypass, typically lose two-thirds of their pre-operative excess weight within 2 years. Although a more drastic procedure than other bypass surgeries, biliopancreatic duodenal switch surgery is especially effective for weight reduction.

Eating Guidelines After Duodenal Switch Bypass

After undergoing stomach by-pass surgery, patients should eat small meals frequently throughout the day, as their new smaller stomach cannot accommodate large meals. Neither can the new stomach tolerate large amounts of fat, alcohol, or sugar. So for optimum weight loss and minimum side effects after biliopancreatic duodenal switch bypass surgery, it is essential that patients reduce fat intake, especially fast food meals and deep-fried foods, as well as high-sugar foods like cakes, cookies, and candy.

See also:
Surgical Operation Diagram
Weight Loss and Health Benefits
Health Complications
Research

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Laparoscopic or open bariatric surgery, such as gastric banding or bypass is not an easy solution to morbid obesity and weight loss. It is a serious surgical procedure, involving health risks. To produce lasting weight loss it requires a long-term patient commitment to eating a healthy diet and following a regular program of physical exercise. Life-long use of nutritional supplements may also be necessary. So, before deciding, discuss your options fully with your doctor. © 2003-2017 Bariatric-Surgery.Info - Terms - Contact - Information - Resources