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Home > Health Conditions and Treatments > Weight loss surgery > Procedures > Biliopancreatic diversion with duodenal switch procedure

Biliopancreatic diversion with duodenal switch procedure

  • 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:

    • 70% of their excess weight at one year post operation
    • 75% of their excess weight at three years post operation

    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.

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