[1] IRCCS San Raffaele Sci Inst, Dept Anesthesia & Intens Care, Milan, Italy
[2] Fdn Policlin Univ A Gemelli, Dept Intens Care Emergency Med & Anaesthesiol, IRCCS, Rome, Italy
[3] Univ Cattolica Sacro Cuore, Inst Anaesthesiol & Intens Care Med, Rome, Italy
[4] IRCCS San Raffaele Sci Inst, Dept Anesthesia & Intens Care, Via Olgettina 60, I-20132 Milan, Italy