[1] Univ Hosp Nancy, Dept Obstet Anaesthesia & Crit Care Unit, Matern Hosp, Nancy, France
[2] Univ Hosp Nancy, Methodol & Biostat Support Unit, ESPRI BioBase Unit, Platform Clin Res Support PARC, Nancy, France
[3] Univ Hosp Nancy, Dept Gynaecol Obstet & Reprod Med, Matern Hosp, Nancy, France
[4] Hosp Martigues, Dept Anaesthesiol & Crit Care Med, Martigues, France
[5] Univ Hosp Nancy Brabois, Inst Lorrain Coeur & Vaisseaux, Dept Anaesthesiol & Crit Care Med, Nancy, France
[6] Univ Lorraine, INSERM, Fac Med, U1116, Nancy, France