1. Department of Cardiothoracic, Vascular Anaesthesia and Intensive Care, IRCCS Policlinico San Donato, Milan, Italy
2. Department of Anaesthesia and Intensive Care, Royal Brompton & Harefield NHS Foundation Trust, London, UK
3. Cardiac Intensive Care Unit, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
4. Department of Congenital Heart Surgery, IRCCS Policlinico San Donato, Milan, Italy