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Single-anastomosis duodenal-ileal bypass (SADI) can be considered a valid option for patients with insufficient weight loss after sleeve gastrectomy (SG) or in super obese individuals as a 2nd stage procedure. It can be described as a simplified duodenal switch that offers both biliopancreatic diversion metabolic effects and easier performance. Moreover, pylorus preservation has been given as a possible benefit. When SADI and SG are performed together as a primary operation, results are excellent in terms of weight loss and comorbidity resolution. Hence, it has been hypothesized that SADI could be successful a second-step operation. Recently published short and mid-term results indicate that it is a safe, feasible and effective second-stage procedure. The procedure was performed by Dr. José M. Balibrea and Dr. José M. Fort from the Hospital Vall d'Hebron in Barcelona.
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