1. *Assistant Professor, Department of Anesthesiology and Pain Medicine, §Assistant Clinical Professor, Division of Cardiology, Department of Medicine, University of Alberta Hospitals. †Anesthesiologist, Department of Anesthesia, §Director, Coronary Care Unit, Royal Alexandra Hospital. ‡Anesthesiologist, Department of Anesthesia, Caritas Health Group.Received from the Department of Anesthesiology an