1 Department of Anesthesia, Intensive Care and Emergency, Città della Salute e della Scienza Hospital, Turin, Italy.
2 Department of Anesthesia, Intensive Care Unit, San Salvatore Hospital, L'Aquila, Italy.
3 Department of Anesthesia, Perioperative Medicine and Intensive Care Therapy, Filippo Del Ponte Hospital, ASST Sette Laghi, Varese, Italy - stefanodik87@gmail.com.