[1] Univ Milano Bicocca, San Gerardo Hosp, Dept Surg Sci & Interdisciplinary Med, Cardiac Surg Clin, Monza, Italy
[2] Univ Milano Bicocca, Dept Clin Med & Prevent, Milan, Italy
[3] San Gerardo Hosp, Cardiac Surg Perfus Serv, Monza, Italy
[4] San Gerardo Hosp, Cardiothorac & Vasc Anaesthesia Intens Care Unit, Monza, Italy