The duodenal switch weight loss surgery, or biliopancreatic diversion with duodenal switch (BPD-DS), is a procedure that helps shorten the path food follows through the small intestine. In turn, this reduces the amount of time your body has to absorb calories from the food you eat to help you lose weight.
This type of surgery is one of the most complex bariatric surgeries. However, it can help you lose more weight than either gastric bypass (Roux-en-Y gastric bypass) or sleeve gastrectomy (gastric sleeve surgery) alone. It has also been shown to help reduce obesity-related illnesses and health problems, such as type 2 diabetes, sleep apnea and heart disease.
Duodenal switch surgery is usually a laparoscopic procedure. This means our bariatric surgeons can do the surgery with small tools inserted through a few tiny incisions in your abdomen.
The complex procedure tackles weight loss with the use of two parts – a sleeve gastrectomy and an intestinal bypass (rerouting the intestines):
One portion of the small intestine, called the alimentary limb, is connected to the stomach pouch. The food you eat travels through this segment. This cuts back on how many calories and nutrients your body is able to absorb.
The second section, called the biliopancreatic limb, keeps digestive juices from the gallbladder and pancreas separate until the two sections join at the common channel. This cuts back on how many calories you absorb, causing still more weight loss. One end of the small intestine is connected to the duodenum, near the bottom of the stomach.
Once the surgery is complete, the food from the stomach will now move through about 10 feet of the small intestine instead of 20, reducing the time it takes for the body to absorb calories and nutrients, prompting weight loss.
This procedure is recommended for people who are severely obese, those who have a body mass index (BMI) of 50 or greater or a BMI of 40 or greater with serious type 2 diabetes and other serious medical conditions.
These health problems may include:
Follow the BMI calculator to find out if you’re a healthy weight.
The duodenal switch procedure offers several key benefits:
While the procedure helps many lose weight, it’s not the right choice for everyone. In addition to the general risks of surgery, the duodenal switch comes with the following potential risks:
After duodenal switch surgery, you can continue to lose weight or maintain weight loss by eating a healthy diet and exercising regularly. You will also need to regularly follow up with your provider for guidance on your diet and exercise plan. There are free support groups available before and after surgery as well.
It is recommended that patients take the following measures to support health after surgery:
Bariatric surgery needs a multidisciplinary approach to obesity care. The Banner Health weight loss team offers compassionate, comprehensive and advanced care. Our team is dedicated to providing you with the safest, most successful bariatric patient experience possible.
Surgery is only one part of that care. Equally important is the education, lifelong follow-up and support our team provides. Our team partners with you to achieve your weight loss goals and improve your quality of life.
Your team will involve a surgeon or surgeons, obesity medicine doctors, nurse practitioners, nurses, dietitians, behavioral health specialists, support staff, medical assistants and some specialists in cardiology, pulmonology and sleep medicine. We are all working together with you on your care.
Banner Health is accredited by the American Society of Metabolic and Bariatric Surgery for its high standards of care in weight loss surgery.