1. Department of Anesthesiology, Operative Intensive Care and Pain Medicine, Universitaetsklinikum Giessen und Marburg GmbH, Standort Giessen, Giessen, Hessen, Germany
2. Department of Cardiovascular Surgery, Universitaetsklinikum Giessen und Marburg GmbH, Standort Giessen, Giessen, Hessen, Germany
3. Department of Adult and Pediatric Cardiovascular Surgery, Universitaetsklinikum Giessen und Marburg GmbH, Standort Giessen, Giessen, Hessen, Germany
4. Department of Anesthesiology and Intensive Care Medicine, Heart and Diabetes Center Mecklenburg, Western Pomerania, Karlsburg Hospital, Karlsburg, Germany
5. Department of Anaesthesiology and Intensive Care Medicine, Leipzig Heart Centre University Hospital, Heart Center Leipzig, Leipzig, Sachsen, Germany
6. Deutsche Gesellschaft für Thorax-, Herz- und Gefäßchirurgie, Berlin, Germany