[1] Percy Mil Hosp, Dept Anesthesiol & Intens Care, F-92141 Paris, France
[2] Univ Hosp Toulouse, Dept Anesthesiol & Intens Care, Toulouse, France
[3] Univ Hosp Cochin, Dept Anesthesiol & Intens Care, Paris, France
[4] Univ Hosp Bicetre, Dept Anesthesiol & Intens Care, Le Kremlin Bicetre, France
[5] Percy Mil Hosp, Dept Orthopaed & Trauma Surg, F-92141 Clamart, France