[1] Attikon Hosp, Univ Dept Cardiol 2, Athens, Greece
[2] Hop Lariboisiere, AP HP, Dept Anesthesiol & Crit Care Med, F-75475 Paris, France
[3] Univ Hosp 12 Octubre, Dept Cardiol, Madrid, Spain
[4] Hosp Espanhol, Div Cardiol & Heart Failure & Transplantat Progra, Salvador, BA, Brazil
[5] Univ Sydney, Nepean Hosp, Dept Intens Care Med, Sydney, NSW 2006, Australia
[6] Univ Zurich Hosp, Dept Internal Med, Div Cardiol, Zurich, Switzerland