Mario Gaudino1, Filippo Crea2,3. 1. 1 Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, USA. 2. 2 Department of Cardiovascular and Thoracic Sciences, Catholic University of the Sacred Heart, Rome, Italy. 3. 3 Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy.