1. Department of Cardiovascular Surgery, University Heartcenter Freiburg-Bad Krozingen, Hugstetter Str. 55, 79106 Freiburg, Germany
2. Faculty of Medicine, University Freiburg, Breisacher Str. 153, 79110 Freiburg, Germany
3. Intensive Cardiac Care Unit, Department of Cardiology, Rangueil University Hospital, 31059 Toulouse, France
4. Intensive Care Unit, Department of Cardiology, Assistance Publique-Hôpitaux de Marseille, Hôpital Nord, Aix-Marseille University, 13015 Marseille, France
5. Intensive Care Unit, University Hospital Basel, University of Basel, Petersgraben 5, 4031 Basel, Switzerland