Evaluation of Omentopexy on Gastro-oesophageal Reflux Following Sleeve Gastrectomy

Inclusion Criteria:

• Patient ≥ 18 years old,

• Patient to be operated in first intention of a sleeve gastrectomy

• Initial BMI between 35Kg/m² and 40 Kg/m² associated with at least one severecomorbidity likely to be improved after surgery according to HAS recommendations.

OR initial BMI ≥ 40 Kg/m².

• Multidisciplinary follow-up of at least 6 months before surgery

• Validation of the surgical intervention in a multidisciplinary consultation meeting

• Certificate of no contraindication by a psychiatrist

• Patient who has the capacity to understand the protocol and has given consent toparticipate in the research,

• Patient with social security coverage.

Exclusion Criteria:

• Eating disorder or mental disorder

• Misunderstanding of the protocol

• Psychiatric contraindication

• Initial BMI <35Kg/m².

• Initial BMI between 35Kg/m² and 40 Kg/m² without comorbidities.

• Esophagitis of grade B and above on the Oeso-Gastro-Duodenal Fibroscopy

• CARLSSON score (score ≥ 4) preoperatively

• Presence of a Proton-Pump Inhibitors treatment

• Patient to have a 2-stage surgery (first sleeve gastrectomy then gastric bypass orSingle Anastomosis Duodeno-Ileal bypass)

• Patient participating in another interventional clinical research protocol involvinga drug or medical device

• Patient who are pregnant, breastfeeding, or who have the potential to becomepregnant without effective contraception at the time of inclusion and up to 24months after surgery

• Patient under guardianship, curators or legal protection,P