Weight Loss Options > Malabsorptive Weight Loss Surgeries: Duodenal Switch

Am I a candidate?

Bariatric surgery is not for the casual dieter and there are several requirements that you will need to meet in order to be considered. Let us guide you through this process in a simple fashion. First, we need to know your height and weight. This will allow us to Calculate your Body Mass Index. BMI is an indicator used globally to indicate a healthy weight. Learn more about Body Mass Index

Weight Loss Options

Duodenal Switch


The Duodenal Switch (sometimes abbreviated to DS or described as Biliary Pancreatic Diversion with Duodenal Switch, BPD, or Biliopancreatic Diversion with DS) is a complex procedure that combines the restrictive and malabsorptive elements of weight loss surgery.

The restrictive part of the Duodenal Switch is achieved via partial gastrectomy (removal of part of the stomach), which reduces the size of the stomach.

Aside from limiting the amount of food one can eat, some scientists also think that this helps reduce the chemicals produced by the stomach that trigger hunger and eating. Unlike the Roux-n-Y gastric bypass, the Duodenal Switch keeps the pyloric valve between the stomach and small intestine intact eliminating dumping syndrome, marginal ulcers, stoma closures and blockages. These are the possible side effects observed in patients who have had other gastric bypass procedures but not with the duodenal switch surgery.

Diagram of a duodenal switch for diabetes in TexasThe mal-absorptive component of the duodenal switch procedure is achieved by rearranging the small intestine to separate the flow of food from the flow of digestive juices (bile and pancreatic juices). Reducing the amount of bile and pancreatic juices the food comes in contact with reduces the amount of food that is digested and decreases absorption of some calories and nutrients.

The duodenal bypass has a significant effect on reversing obesity. Further down the digestive tract, the separated portions of the small intestinal are rejoined; food and digestive juices begin to mix, and limited fat absorption, essential for good health, occurs.

While the duodenal switch produces the greatest degree of weight loss of the bariatric procedures in use today, it also carries some additional risks which should be carefully evaluated when selecting this procedure.




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