Affiliation: | 1. Department of Anaesthesiology and Intensive Care, Landspitali University Hospital, Reykjavik, Iceland;2. Cardiothoracic Surgery, Landspitali University Hospital, Reykjavik, Iceland;3. Department of Anaesthesiology and Intensive Care, Landspitali University Hospital, Reykjavik, Iceland Faculty of Medicine, University of Iceland, Reykjavik, Iceland;4. Cardiothoracic Surgery, Landspitali University Hospital, Reykjavik, Iceland Faculty of Medicine, University of Iceland, Reykjavik, Iceland |