Intubation of Obese Patients in the Operating Room with or Without Bag-Mask Ventilation

Inclusion criteria:

• patient requiring general anesthesia with intubation for surgery or scheduled endoscopic procedures

• age > 18 years

• with a BMI superior or equal to 35kg.m-²

• patient having signed an informed consent

Non-inclusion criteria:

• ambient air saturation <90%

• urgent surgery < 24 hours

• cardio-thoracic surgery

• mask ventilation not possible (e.g. ATCD, cervical irradiation, fixed mandible)

• formal contraindication to mask ventilation (e.g. occlusive syndrome, non fasting patient, symptomatic gastroesophageal reflux untreated or persistent under treatment)

• wish of the operator for high flow oxygen preoxygenation

• wish of an intubation without curare by the operator

• pregnant or breast-feeding women

• protected adults (guardianship, curatorship or safeguard of justice)

• participation in another randomized clinical research study concerning preoxygenation and relevant to the primary endpoint

• absence of affiliation to the French social security system