Evaluation of Long-term Adverse Effects of Gastric Bypass in Omega

Inclusion Criteria

• •Patients who received 10 ± 2 years ago (between 2009 and 2013) an OAGB with a 150 or 200cm biliary limb. Patients should be consecutive at each center.
• •Patients fulfilling the criteria of indication for bariatric surgery at the time of their intervention according to the recommendations of the HAS (HAS, 2009) in an expert center.
• •Patients agreeing to perform an endoscopic evaluation with biopsies at 10 years
• •Patients who gave their consent
• •Patients with health insurance coverage