² Cardiothoracic Anesthesia and Intensive Care, A.O.U. San Giovanni di Dio e Ruggi D’Aragona – Salerno – Italy
Corresponding Author: Paolo Masiello, Piazza V. Veneto 39, 84123 Salerno (SA), Italy. Email: paolo.masiello1@virgilio.it – Tel +393389499910 – Fax +39089673247