Bariatric care: Biliopancreatic diversion with duodenal switchSkip section navigation
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Commonly referred to as a DS, this surgery is a combination of the sleeve gastrectomy and the gastric bypass. It changes the amount of food you can eat and your ability to absorb calories to help you succeed at long term weight loss.
In general patients lose:
Restricting stomach size
About 80 percent of the stomach is removed. Food then travels into a new segment of intestine.
Decreasing the use of eaten foods
Digestive enzymes from the liver and pancreas are kept separate from the stream of food. The enzymes travel down a different pathway of small intestine.
Food and enzymes meet only in the last 10 percent of the small intestine. This short length must do all the work of absorbing nutrients.
Are there risks to DS surgery?
This surgery does carry risks. Possible complications include infection, bleeding, anesthesia risks, hernia, leaks, blood clots and ulcers. Also, the outlet at the bottom of your pouch may get plugged (clogging), or your body might not absorb some vitamin and minerals you need. Death from weight loss surgery is a risk but it is not common. This is about the same as that for gallbladder surgery or a hip replacement.
This complex operation has higher short-term risks and long-term nutritional risks than gastric bypass and laparoscopic adjustable gastric band. As a result, it is reserved for those people with the most serious obesity.
People with liver disease are not usually candidates for this operation.
Please discuss potential risks with your surgeon.
What happens during recovery?
You will need to commit to a lifestyle of healthful eating and regular exercise for the rest of your life. This will help you avoid re-gaining weight and help you manage your health.
Gastric bypass surgery
Roux-en-Y gastric bypass surgery changes the size of your stomach as well as your ability to absorb calories to help you succeed at long-term weight loss. Learn more about gastric bypass...
Adjustable gastric banding, commonly known as Lap-Band® or Realize Band™ surgery, is surgery to limit the amount of food you can eat at one time. An adjustable band placed around your stomach creates a small pouch. Learn more about adjustable gastric banding...
Body mass index (BMI)
Body mass index (BMI) is a measure of body fat based on height and weight. Calculate your BMI...
Source: The Bariatric Centers of Allina Health
Reviewed by: Sayeed Ikramuddin, MD, The Bariatric Center of Abbott Northwestern Hospital
First Published: 05/25/2005
Last Reviewed: 02/01/2011