1. From the Departments of Cardiology (J.B.-J., C.H., L.K., J.K.) and Cardiothoracic Anesthesia (M.W., M.O.), The Heart Center, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark; Department of Anesthesia and Intensive Care, Lund University, Helsingborg Hospital, Helsingborg, Sweden (N.N.); and Departments of Cardiology (D.E.) and Anesthesia and Intensive Care (H.F.), Lund University, Skåne University Hospital, Lund, Sweden.