Staple-line leak is the most frequent and incapacitating complication after laparoscopic sleeve gastrectomy (LSG). The aim of this prospective randomized trial is to compare the staple-line leak rate after LSG according to the use of a standard bougie calibre (34, 36 or 38 Fr) or 48-Fr, assuming that a higher diameter is correlated with a lower risk of leak, without lowering long-term weight loss.
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Eligibility Criteria
Inclusion Criteria:
* Patients between 18 and 70 years
* Sleeve gastrectomy as a primary bariatric procedure
* Body Mass Index (BMI) \> 40 kg/m² or \> 35 kg/m² associated with at least one comorbidity susceptible to improve after surgery (including arterial hypertension, obstructive sleep apnea syn…
Inclusion Criteria:
* Patients between 18 and 70 years
* Sleeve gastrectomy as a primary bariatric procedure
* Body Mass Index (BMI) \> 40 kg/m² or \> 35 kg/m² associated with at least one comorbidity susceptible to improve after surgery (including arterial hypertension, obstructive sleep apnea syndrome and other severe respiratory disorders, severe metabolic disorders, particularly type 2 diabetes, incapacitating osteo-articular disorders, non alcoholic steatohepatitis)
* Decision for intervention after multidisciplinary discussion
* Written informed consent
Exclusion Criteria:
* Previous upper abdominal surgery (cholecystectomy excepted)
* ASA (American Society of Anesthesiologists) score \> 3
* Ongoing pregnancy or breast feeding
* Esophagus pathology or disorder (esophageal varices, esophageal diverticula, esophageal tumors, esophageal strictures)
* Coagulation disorder
* Patient not covered by social security service and patient on AME
* Patient under legal guardianship and trusteeship
* Patient with known silicon allergy (calibration bougie contains medical silicon)
* More generally, all other contraindications to the use of esophageal bougie MID-TUBE that have been the subject of a scientific paper or have been identified by the practitioner or practitioners
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