Laparoscopic Ileal Interposition and Weight Regain

Inclusion Criteria: * Patients submitted to initial laparoscopic after initial Roux-en-Y gastric bypass for at least 3 years * Loss of excess weight between 60 to 80% * Rate of weight regain ≥60% * Body mass index ≥ 40 kg/m2 or ≥ 35 kg/m2, with at least 2 comorbidities associated with obesity * Present a previous evaluation by the multidisciplinary team with a favorable opinion of the revision surgery. Exclusion Criteria: * Active chemical dependency on alcohol and/or illicit drugs * Severe psychotic or depressive disorder or history of suicide attempts in the last 12 months * Eating behavior disorder (uncontrolled) * Secondary causes of obesity * Pregnancy * Severe organ failure * Active neoplastic * Infectious or inflammatory disease * Severe coagulopathy * High anesthetic-surgical risk * Intellectual inability * Lack of preoperative follow-up