IBC Oxford University Oral Abstract 43 - Evaluation of weight loss after single anastomosis sleeve ileal bypass (SASI) and one anastomosis gastric bypass (OAGB): a comparative study

Abstract Introduction Sleeve Gastrectomy and RYGB are the most frequently performed bariatric procedures world-wide. OAGB is increasing in numbers, SASI bypass is a recently developed procedure, hoping with her to avoid the negative changes happening after the above-mentioned procedures. It is a malabsorptive procedure. One year follow up results obtained in terms of weight loss and the effect on comorbidities were compared between SASI and OAGB patients. Patients and Methods We collected our data prospectively from our clinic and formed two groups (Gr) of patients, Gr A: SASI, Gr B: OAGB (no randomization). Analysed variables were baseline and post-operative BMI, excess weight loss (EWL), pre and post-operative comorbidities up to 1 year. Results Gr A: between 2019–2022. we have performed 102 SASI operations. 96 (94%) patients available for follow up. GrB: included 120 OAGB patients, 112 P (93%) available for follow up. There were no significant differences in age, gender, comorbidities or anthropometric measurements preoperatively between both groups. follow up of 1 year We observed mild not significant differences in EWL in favor for OAGB, Diarehea, and post prandial abdominal pain less frequent, stool odor less bad in SASI Group. BMI post SASI decreased from 41 kg/m2 to 29 Kg/m2, Post OAGB from 40 kg/m2 to 28 Kg/m2), with EWL of 83%, and 86% respectively Diabetes Miletus type II (DM II), Hyperlipidaemia resolved in similar percentage in both groups. Iron deficiency anaemia and hypoalbuminaemia incidence were higher in Gr B. Conclusions SASI Bypass achieve superior results in terms of quality of life and comorbidity and results with significant and comparable EWL to OAGB