Katia Donadello1, Enrico Polati2. 1. Unit of Anesthesia and Intensive Care B, Department of Surgery, Dentistry, Pediatrics, and Gynecology, University Hospital of Verona, University of Verona, Verona, Italy - katia.donadello@univr.it. 2. Unit of Anesthesia and Intensive Care B, Department of Surgery, Dentistry, Pediatrics, and Gynecology, University Hospital of Verona, University of Verona, Verona, Italy.