Conversion from Roux-En-Y Gastric Bypass to Single Anastomosis Duodenoileal Bypass (SADI-S) for Weight Regain

Background: Revisional bariatric surgery presents a challenge for bariatric surgeons. This procedure can be considered for patients with inadequate weight loss or weight regain after an initial satisfactory response following bariatric surgery. However, the surgical management of weight regain following RYGB remains controversial. We present a case of successful weight gain management after a single anastomosis duodenoileal bypass with sleeve gastrectomy (SADIS) as a revisional procedure for patients with weight regain after RYGB.

Methods: A 23-year-old female with a body mass index (BMI) of 52 kg/m² and no comorbidities underwent RYGB. Postoperatively, she reached an excess weight loss of 75% of her initial body weight, with a BMI of 32 kg/m². Eight years after her RYGB, she started regaining weight, reaching a BMI of 47 kg/m². The surgical team decided to perform a revisional surgery, a conversion of RYGB to SADIS.

Results: There were no intraoperative complications. An upper gastrointestinal series was obtained on the third postoperative day which resulted normal and oral feedings were resumed. The patient was then discharged on fifth postoperative day. There were no complications within the first 30 postoperative days.

Conclusions: We attach a video that illustrates the management and technique used to deal with the weight regain after primary bariatric surgery RYGB. We consider that in patients with super morbid obesity refractory to RYGB, conversion to SADIS is an excellent alternative due to its safety and feasibility.