Anesthesia sTrategy foR Organ Procurement In braiN dEath

Inclusion Criteria: * Eligible adult brain-dead donor hospitalized in intensive care unit in one of the participating center: * Confirmed diagnosis of brain death according to French public health code. * Ongoing organ donation procedure managed by the local organ procurement coordination team with confirmation of the potential procurement of at least one intra-abdominal or intra-thoracic organ. * Transfer to the operating room for the organ procurement procedure scheduled for the next 6 hours and anesthesia team alerted. * Information of the patient's next of kin by the investigator and absence of opposition to research confirmed by the testimony of the next of kin according to French public health code. Exclusion Criteria: * Age \< 18 years. * DCD (donation after circulatory death) donors. * Ongoing extracorporeal circulation at the time of death. * Hemodynamic instability at the screening visit defined by a noradrenalin dose \> 1 µg/kg/min. * Contraindication to the implementation of the anesthetic interventions evaluated in the trial: * Prior history of opioid or volatil anesthetic agents allergy. * Prior personal or family history of malignant hyperthermia or history of myopathy at risk of malignant hyperthermia. * Opposition to the research expressed by the patient during his or her lifetime and documented by the next of kin.