It is the most effective obesity and diabetes surgery known. With the duodenal switch, weight loss is 80% -85% and its effect on DM is about 92%. The Duodenal Switch procedure limits the amount of food, reduces fat absorption, and significantly increases GLP-1 (a hormone that is produced from the first part of the large intestine with the last part of the small intestine which gives rise to a feeling of satiety, which increases the production and release of insulin.) and PYY (a hormone secreted from the first part of the large intestine with the end of the small intestine, which is effective in gastric emptying and intestinal motility) effects as the most important effects. This increases the efficiency of DM. In addition, this operation should be considered as a for people with BMI: 50 and over and patients fed with high-calorie rituals.
In this operation, a larger tube stomach is formed (about 50-60%) than the sleeve gastrectomy, then the duodenum is separated and the new path is formed by anastomosing the last 250-300 cm of the small intestine.
Dyspnea, bile reflux, dumping syndrome are less common because of the pyloric ring being protected by this operation. Back weight gain is less than other procedures. The rate of resolution for metabolic diseases is higher. As a disadvantage, a defecation change can be seen. Vitamins and minerals deficiency are observed in the patients and they need support.