A Salvadori1, P Pasquier2, A Jarrassier2, J V Schaal2, S Mérat2. 1. Department of Anaesthesiology and Intensive Care, Military Teaching Hospital Bégin, 69 avenue de Paris, 94163 Saint-Mande, France; Department of Anaesthesiology and Intensive Care, University of Paris Descartes, Military Teaching Hospital Val de Grâce, 74 Boulevard de Port Royal, 75005 Paris, France. Electronic address: salvadori.alexandre@gmail.com. 2. Department of Anaesthesiology and Intensive Care, Military Teaching Hospital Bégin, 69 avenue de Paris, 94163 Saint-Mande, France.