[1] Magna Graecia Univ Catanzaro, Dept Med & Surg Sci, Anesthesia & Intens Care, I-88100 Catanzaro, Italy
[2] Univ Perugia, Hosp S Maria Misericordia, Dept Med & Surg, Div Anesthesia Analgesia & Intens Care, I-06123 Perugia, Italy
[3] Eastern Piedmont Univ, Dept Translat Med, Anesthesia & Intens Care, I-28100 Novara, Italy
[4] Univ Padua, Padua Hosp, Dept Med DIMED, Anesthesia & Intens Care, I-35128 Padua, Italy