Conversion to SADI-S, RYGB or OAGB After Failed Sleeve

Inclusion Criteria: * Undergone primary laparoscopic sleeve gastrectomy in the past * Weight regain * defined as any increase in weight above the nadir as reported by the patient * BMI at the time of revisional surgery was around 45 kg/m2 * weight regain was defined as an increase in BMI after bariatric surgery to exceed 35 * With or without Gastroesophageal reflux disease (GERD) grade A and B o Patients with grade C or higher GERD, according to the Los Angeles (LA) classification \[7\] will be excluded from the study Exclusion Criteria: * Didn't follow preoperative consultation * Cannot give of sign informed consent