Assessment of Remifentanil for Rapid Sequence Induction and Intubation in Full Stomach Patient Compared to Muscle Relaxant

Inclusion Criteria: * \- male or female * aged from 18 to 80 years old * surgery requiring general anaesthesia with tracheal with oro-tracheal intubation * Rapid sequence intubation indication * aspiration risk defined as : fasting \< 6h00, digestive occlusion, functional ileus, vomiting \< 12h00, orthopaedic trauma \< 12h00, severe gastric reflux, gastroparesis and/or dysautonomia and or gastro-oesophagus surgery * signed informed consent sheet ; or emergency procedure if impossible Exclusion Criteria: * planned impossible intubation * suspected/known allergy to neuromuscular blockade or remifentanil * Neuromuscular disease forbidding neuromuscular blockade use * Prolonged neuromuscular block former episode * Malignant hyperthermia former episode * Pre-operative respiratory failure (spO2\< 95%) * Pre-operative hemodynamic failure (use of vasopressor) * cardiac arrest * A woman of childbearing age who has an active pregnancy and/or clinical signs suggestive of an active pregnancy and/or does not have a contraceptive or contraceptive method and has had unprotected sex within 15 days of the last menstrual period. * Patients under justice protection * Use of etomidate for anesthetic induction