Early Outcomes of Primary SADI-S: an Australian Experience

Abstract

Introduction: Single-anastomosis duodeno-ileal bypass with sleeve gastrectomy (SADI-S) surgery is a modification of the traditional duodenal switch (DS) surgery. SADI-S is relatively a new bariatric surgical procedure and has gone by many names depending on the length of the common channel. In this study, we report our initial experience with this novel technique in the Australian population.

Methods: The medical records of 91 patients who underwent laparoscopic primary SADI-S surgery by one surgeon at a single Australian center from January 2017 through May 2019 were retrospectively studied.

Results: Ninety-one patients were identified for analysis. The mean age and preoperative body mass index (BMI) was 46.2 ± 9 years and 43.2 ± 5.7 kg/m², respectively. The mean operative time and length of stay were 121.8+/- 25 minutes and 1.4 ± 0.8 days, respectively. At 12 and 24 months, the patients lost an average BMI of 15.2 ± 5.2 kg/m² and 17.2 ± 5.9 kg/m², respectively. The short-term and long-term complication rates were 4.3% and 0%, respectively. The mortality rate was 0%. Postoperatively, the obstructive sleep apnea, type 2 diabetes, hyperlipidemia, hypertension, and gastroesophageal reflux disease resolution rates were 94, 94, 75, 68, and 13%, respectively. There was no statistically significant difference between most of the preoperative and postoperative nutritional data.

Conclusions: SADI-S appears to be a safe bariatric surgical procedure with favorable outcomes at 2 years in the Australian population.

Keywords: Australia; Loop DS; SADI-S; SIPS; Single-anastomosis duodeno-ileal bypass with sleeve gastrectomy; Stomach intestinal pylorus-sparing surgery.