1 Inserm U1046, CNRS UMR 9214, anaesthesiology and intensive care, anaesthesia and critical care department B, Saint Eloi Teaching hospital, PhyMedExp, university of Montpellier, 34295 Montpellier cedex 5, France; Centre hospitalier universitaire Montpellier, 34295 Montpellier, France.
2 Department of anaesthesia and critical care, Hospices Civils de Lyon, Lyon, France; Groupe Jeunes, Société française d'anesthésie et de réanimation (SFAR), 74, rue Raynouard, 75016 Paris, France.
3 Inserm U1046, CNRS UMR 9214, anaesthesiology and intensive care, anaesthesia and critical care department B, Saint Eloi Teaching hospital, PhyMedExp, university of Montpellier, 34295 Montpellier cedex 5, France; Centre hospitalier universitaire Montpellier, 34295 Montpellier, France. Electronic address: [email protected].