[1] Nancy Univ, Ctr Alexis Vautrin, Dept Anesthesie Reanimat, F-54511 Vandoeuvre Les Nancy, France
[2] CHU Nancy, Hop Cent, Serv Neurol, F-54035 Nancy, France
[3] Nancy Univ, Ctr Alexis Vautrin, Dept Chirurg, F-54511 Vandoeuvre Les Nancy, France
[4] Univ Paris 07, Hop Bichat Claude Bernard, AP HP, Dept Anesthesie Reanimat Chirurg, F-75018 Paris, France
[5] Univ Nancy 1, CHU Nancy Brabois, Dept Anesthesie Reanimat, F-54511 Vandoeuvre Les Nancy, France
[6] CHU Nancy, Hop Cent, Dept Anesthesie Reanimat, F-54035 Nancy, France