1. University Centre of Cardiovascular Science, University Heart & Vascular Center, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
2. Department of Cardiology, University Heart & Vascular Center, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
3. German Centre for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck , Hamburg , Germany
4. Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf , Hamburg , Germany