1 Anaesthesiology, Critical Care and Pain Medicine Division, Department of Medicine and Surgery, University of Parma, Parma, Italy. Electronic address: ccompagnone@ao.pr.it.
2 Department of Obstetric Anaesthesia, Fatebenefratelli Isola Tiberina Gemelli Isola Hospital, Rome, Italy.
3 UOC Institute of Anaesthesia and Intensive Care Unit, University Hospital of Padua, Padua, Italy.
4 General and Paediatric Anaesthesia and Intensive Care Department, IRCCS Azienda Ospedaliera-universitaria di Bologna, Bologna, Italy.
5 Anaesthesiology and Critical Care Division, Department of Surgery, Infermi Hospital, Rimini, Italy.
6 Anaesthesiology and Critical Care Division, Department of Emergency, Santa Maria Hospital, Terni, Italy.
7 Anaesthesiology, Critical Care and Pain Medicine Division, Department of Medicine and Surgery, University of Parma, Parma, Italy.