1 Cardiac Anesthesia and Intensive Care Unit, AORN Dei Colli, Monaldi Hospital, Naples, Italy.
2 Department of Anesthesiology and Intensive Care, First Moscow State Medical University, Moscow, Russia.
3 Faculty of Medicine, Vita-Salute San Raffaele University, Milan, Italy; Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy. Electronic address: landoni.giovanni@hsr.it.