Arcangelo Picciariello1, Donato Francesco Altomare2, Gaetano Gallo3, Ugo Grossi4. 1. Department of Emergency and Organ Transplantation, University "Aldo Moro" of Bari, Bari, Italy. Electronic address: arcangelopicciariello@gmail.com. 2. Department of Emergency and Organ Transplantation, University "Aldo Moro" of Bari, Bari, Italy. 3. Department of Medical and Surgical Sciences, University of Catanzaro, Catanzaro, Italy. 4. II Surgery Unit, Treviso Regional Hospital, DISCOG, University of Padua, Padua, Italy.