1. Department of Anaesthesia and Intensive Care A.O.U. “Policlinico‐San Marco” Catania Italy
2. School of Anaesthesia and Intensive Care University “Magna Graecia” Catanzaro Italy
3. Department of Anesthesia and Intensive Care IRCCS‐ISMETT, UPMC Italy Palermo Italy
4. Department of General Surgery and Medical‐Surgical Specialties University of Catania Catania Italy
5. CardioThoracic and Vascular Anesthesia and Intensive Care AO SS Antonio e Biagio e Cesare Arrigo Alessandria Italy