1. Unit of Anesthesia and Intensive Care Medicine, Vascular Access Team, Centro di Riferimento Oncologico di Aviano, IRCCS, Aviano, Italy
2. Department of Anesthesia and Intensive Care, Fondazione Policlinico Universitario “A.Gemelli” IRCCS, Rome, Italy
3. Department of Anesthesia and Intensive Care, Careggi University Hospital, Firenze, Italy
4. Department of Surgery, Fondazione Policlinico Universitario “A.Gemelli” IRCCS, Rome, Italy