1. Centre for Cardiovascular Diseases, University Hospital Brussels , Laarbeeklaan 101, Jette 1090 , Belgium
2. Department of Intensive Care, University Hospital Brussels , Laarbeeklaan 101, Jette 1090 , Belgium
3. Department of Cardiology, Erasmus Medical Centre , Rotterdam 3015 CN , The Netherlands
4. Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel , Jette 1090 , Belgium