1Cardiovascular Research Institute Basel (CRIB) | Cardiac Surgery, 2Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, Basel, 3Emergency Department, Kantonsspital Luzern, Lucerne, Switzerland, 4Department of Cardiology, University of Illinois at Chicago, Chicago, IL, United States, 5Critical Care Research Group, The Prince Charles Hospital, Brisbane, QLD, Australia, 6Department of Cardiology, Herzzentrum Leipzig, Leipzig, Germany, 7Laboratory Medicine, University Hospital Basel, Basel, Switzerland, 8Emergency Department, Hospital Clinic, Barcelona, 9Emergency Department, Hospital Clínico San Carlos, Madrid, Spain, 10Emergency Department, Kantonsspital Liestal, Liestal, Switzerland, 11Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Zabrze, Poland, 12Emergency Department, University Hospital Zurich, Zurich, 13Department of Cardiology, University Hospital Bern (Inselspital), Berne, Switzerland