1. From the Department of Cardiology (S. Riddersholm, B.T., K.K., P.S., S. Riahi), Aalborg University Hospital, Denmark
2. Department of Anaesthesiology and Intensive Care Medicine (S. Riddersholm, B.S.R.), Aalborg University Hospital, Denmark
3. Department of Cardiothoracic Surgery (J.J.A.), Aalborg University Hospital, Denmark
4. Clinical Institute (B.S.R., S. Riahi), Aalborg University Hospital, Denmark
5. Unit of Epidemiology and Biostatistics (C.T.-P.), Aalborg University Hospital, Denmark