Duodenal switch surgery, also known as biliopancreatic diversion with duodenal switch (BPD/DS), is a weight loss procedure that combines restrictive and malabsorptive techniques. This surgery reduces the size of your stomach and reroutes a portion of the small intestine to limit calorie and nutrient absorption, promoting significant weight loss.
Duodenal switch surgery works by limiting the amount of food you can eat and altering the digestive process to reduce the absorption of calories and nutrients. The smaller stomach helps you feel full faster, while the rerouted intestine allows fewer calories and nutrients to be absorbed. This combination leads to significant weight loss, making it especially effective for patients with severe obesity.
Duodenal switch surgery is generally recommended for individuals with a body mass index (BMI) of 50 or higher, or for those with a BMI of 40 or higher who also have obesity-related health conditions such as type 2 diabetes, sleep apnea, or heart disease. It may be a good option if you have not had success with other weight loss surgeries or if you need a more aggressive approach to weight loss due to severe obesity.
One of the primary benefits of duodenal switch surgery is its effectiveness in promoting long-term weight loss. Many patients lose 70-80% of their excess weight within the first two years. This surgery is also highly effective at resolving obesity-related health conditions, including type 2 diabetes, high blood pressure, and sleep apnea. For patients with severe obesity, duodenal switch surgery can offer life-changing improvements in health and quality of life.
The surgery is typically performed laparoscopically and involves two steps. First, a portion of the stomach is removed, creating a smaller stomach pouch, similar to a gastric sleeve. Next, the small intestine is rerouted, bypassing a large portion to reduce calorie and nutrient absorption. The entire procedure usually takes 3-4 hours, and most patients stay in the hospital for 2-3 days post-surgery.
Recovery from duodenal switch surgery requires a commitment to a new way of eating and living. Immediately after surgery, you’ll follow a liquid diet, gradually progressing to soft foods and then regular meals. Due to the malabsorptive nature of the surgery, you will need to take vitamin and mineral supplements for the rest of your life to prevent nutrient deficiencies. Regular follow-up appointments are crucial to monitor your progress and health.
Full recovery from duodenal switch surgery can take 4-6 weeks, though most patients can return to light activities within 2-4 weeks. Weight loss is most dramatic in the first year, with many patients achieving their goal weight within 18-24 months. Along with significant weight loss, many patients experience improvements or resolution of obesity-related conditions, resulting in better overall health and energy levels.
To maintain long-term success after duodenal switch surgery, patients must commit to a lifetime of healthy eating, regular exercise, and ongoing medical care. The surgery is a powerful tool for weight loss, but it requires dedication to lifestyle changes and consistent follow-up with your healthcare team to monitor nutrient levels and overall health.
Both the duodenal switch and gastric bypass surgeries involve reducing stomach size and rerouting the intestines. However, the duodenal switch bypasses a larger portion of the small intestine, leading to more significant malabsorption and greater long-term weight loss. It also requires more careful management of nutritional intake, including lifelong supplementation. Gastric bypass, on the other hand, reroutes a smaller portion of the intestines and involves less malabsorption, making it effective for weight loss but with fewer nutritional risks compared to the duodenal switch.
The duodenal switch removes a large portion of the stomach and reroutes the small intestine, combining restriction with significant malabsorption. This approach leads to more substantial long-term weight loss but requires lifelong vitamin and mineral supplementation due to decreased nutrient absorption. In contrast, gastric sleeve surgery only removes 75-80% of the stomach, reducing food intake and hunger without affecting the intestines. Because nutrient absorption remains intact with the gastric sleeve, it is a simpler procedure with fewer long-term risks related to malabsorption.
If you’re ready to take the next step in your weight loss journey and explore whether duodenal switch surgery is right for you, contact us today to schedule a consultation. Our experienced team will guide you through the process, help you understand the risks and benefits, and support you every step of the way.
Enter your height and weight below to see your Body Mass Index
After the duodenal switch, you will eat significantly smaller portions because your stomach will be much smaller. You’ll also need to focus on high-protein foods, eating multiple small meals throughout the day to ensure you get enough nutrients. Certain foods may be more difficult to tolerate, and you may need to avoid foods that are high in fat or sugar to prevent discomfort.
The malabsorptive component of the duodenal switch can lead to changes in digestion, including looser and more frequent bowel movements. Some patients experience steatorrhea (fatty stools) if they eat too much fat. It’s important to stay hydrated and maintain a balanced diet to minimize these effects.
Oftentimes, some patients find that they develop new food intolerances after surgery. Fatty, greasy, or sugary foods can cause discomfort or digestive issues. You may need to experiment with different foods to determine what your body tolerates best post-surgery.
Most patients begin losing weight rapidly within the first few weeks after surgery. Significant weight loss usually occurs within the first 12-18 months. The amount and speed of weight loss can vary depending on individual factors such as adherence to dietary guidelines, exercise, and overall health.
While the duodenal switch is highly effective at promoting long-term weight loss, some patients may experience weight regain if they do not adhere to the recommended diet and lifestyle changes. It’s essential to maintain a balanced, healthy diet and regular exercise to prevent regaining weight over time.