1. From the Department of Cardio-Thoracic Surgery (A.H.M.v.S., M.A.S.H., J.P.A.M.S.), Department of Education and Research (E.J.M.), and Department of Anesthesiology, Brabant Medical School (A.J.v.Z.), Catharina Hospital, Eindhoven, the Netherlands; Department of Anesthesiology (A.J.v.Z.), University Hospital Ghent, Ghent, Belgium; and Department of Anesthesiology (A.M.d.W.), the Feinberg School of Medicine, Northwestern University, Chicago, Ill.