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.