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Duodenal Switch Surgery


Duodenal switch surgery is a weight loss procedure that combines the principles of restriction and malabsorption by making the stomach smaller and rerouting the intestines. This combination of treatments is a proven, effective way to lose weight and improve weight-related health issues. 

At The University of Kansas Health System, we offer duodenal switch surgery for individuals who need to reduce their weight and improve obesity-related health problems. Schedule an appointment by calling 913-588-1227 or request your appointment online. The University of Kansas Health System offers duodenal switch surgery for patients in Kansas City, Overland Park and throughout the region.

What is duodenal switch surgery?

Biliopancreatic diversion with duodenal switch (BPD-DS) surgery is a two-part procedure in which approximately 75-80% of the stomach is removed (similar to the gastric sleeve surgery). Then, a small, tubular stomach pouch is created. The outlet of the newly created stomach pouch is then connected to the last portion of the small intestine, called the duodenum.

After the procedure, the food empties directly into the duodenum, bypassing about 3/4 of the small intestine. This causes the body to absorb fewer calories and nutrients. Duodenal switch surgery affects hormones in the gut to reduce hunger, increase satiety and help control blood sugar to effectively treat diabetes.

Duodenal switch surgery pros and cons


  • 98% effective in curing diabetes
  • Rapid weight loss
  • Highest average expected weight loss among bariatric procedures


  • Most complex weight loss surgery
  • Not reversible
  • Possible vitamin and mineral deficiencies

Benefits of duodenal switch surgery

Duodenal switch surgery provides the highest average expected weight loss available among bariatric procedures and offers the best chance of curing diabetes (up to 98%).

After surgery, the stomach is roughly the size and shape of a banana and can hold approximately 3 ounces of food, as compared to the average stomach which can hold up to 4 cups of volume. Additionally, by shortening the path food travels through in your intestine, you absorb fewer calories. This combination of restriction and malabsorption creates a rapid weight loss. BPD-DS will not eliminate your desire for food completely, but many people find they now eat because it is time, not because they feel hungry.

We offer a variety of appointment types. Learn more or call 913-588-1227 to schedule now.

Why choose us

Duodenal switch surgery is a highly complex procedure. In fact, it is the most complex type of bariatric surgery and carries the most risk of complications. For this reason, choosing a highly-skilled surgeon is very important.

Our board-certified surgeons have had exclusive training in this procedure. With more than 15 years of experience, they specialize in performing weight loss surgery using the most up-to-date, minimally invasive techniques to reduce pain and discomfort and speed recovery.

What to expect

You will receive an evaluation to determine if duodenal switch surgery is right for you. To be a candidate, you must be morbidly obese or superobese (have a BMI greater than 50) and be healthy enough to tolerate surgery. Those who have comorbid conditions, like diabetes, are good candidates as well. Your physician will talk to you about which type of bariatric surgery is right for you.

Duodenal switch surgery is an inpatient procedure that requires general anesthesia. After the surgery, you will spend 2 nights in the hospital. Your diet will start with clear liquids, and you will then transition to soft foods until your body can adjust to solid foods again. Initially, you will feel full very quickly after eating a small amount of food. However, over time, you will be able to consume normal amounts of food again.

Duodenal switch surgery requires a very strict diet and vitamin supplementation after surgery to avoid malnutrition. It’s important that you follow your care team’s instructions to avoid complications.

Risks and complications

Duodenal switch surgery is not reversible, and some people may have complications after the surgery. One of the complications of duodenal switch surgery includes protein, vitamin and mineral deficiencies. Strict compliance with your physician and healthcare team’s recommended diet and vitamin supplementation after the surgery is very important.