[1] CHRU Nancy, Hop Cent, Serv Neurochirurg, F-54000 Nancy, France
[2] Univ Lorraine, Fac Med, F-54505 Vandoeuvre Les Nancy, France
[3] CHRU Nancy, Hop Cent, Serv Anesthesie Reanimat Chirurg, F-54000 Nancy, France
[4] CHRU Nancy, UMDS, Hop Brabois, PARC, F-54505 Vandoeuvre Les Nancy, France
[5] Univ Lorraine, EA4360 APEMAC, F-54000 Nancy, France
[6] Hop Univ Paris Sud, Hop Bicetre, Dept Anesthesie Reanimat, 78 Rue Gen Leclerc, F-94270 Le Kremlin Bicetre, France