Conflict of interest:
E. Potapov reports institutional grants and fees and non-financial support from Abbott and Medtronic during the conduct of the study; institutional grants, fees and non-financial support from Berlin Heart and Abiomed outside the submitted work.
C. Tschöpe has received speaker fees and/or contributions to congresses from Abbott, Abiomed, Astra Zeneca, Bayer, Berlin Chemie, Pfizer, and Servier outside the submitted work.