[1] Univ Genoa, Dipartimento Sci Chirurg & Diagnost Integrate, Genoa, Italy
[2] Univ Grenoble, Dept Anesthesiol & Intens Care, Grenoble, France
[3] IRCCS Oncol & Neurosci, Policlin San Martino, Genoa, Italy
[4] Univ Libre Bruxelles ULB, Erasme Hosp, Dept Intens Care Med, Route Lennik 808, B-1070 Brussels, Belgium