Lionel Bouvet1, Dominique Chassard2. 1. Department of Anesthesiology and Intensive Care, Femme-Mère-Enfant Hospital, Groupement Hospitalier Est, Hospices Civils de Lyon, 59 boulevard Pinel, Bron, 69500, Lyon, France. lionel.bouvet@chu-lyon.fr. 2. Department of Anesthesiology and Intensive Care, Femme-Mère-Enfant Hospital, Groupement Hospitalier Est, Hospices Civils de Lyon, 59 boulevard Pinel, Bron, 69500, Lyon, France.