1 Cardiac Surgery, Cardiovascular Center, Klinikum Nürnberg - Paracelsus Medical University, Nuremberg, Germany; PhD Program in Angio-Cardio-Thoracic Pathophysiology and Imaging, Sapienza University of Rome, Rome, Italy. Electronic address: francesco.pollari@klinikum-nuernberg.de.
2 Cardiac Surgery, Cardiovascular Center, Klinikum Nürnberg - Paracelsus Medical University, Nuremberg, Germany.