Christopher L Pysyk1, Christopher G Wherrett2, Lucie Filteau3. 1. Department of Anesthesiology and Pain Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8L6, Canada; Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, General Campus, 501 Smyth Rd, Critical Care Wing 1401, Ottawa, Ontario K1H 8L6, Canada. Electronic address: cpysyk@toh.on.ca. 2. Department of Anesthesiology and Pain Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8L6, Canada; Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, General Campus, 501 Smyth Rd, Critical Care Wing 1401, Ottawa, Ontario K1H 8L6, Canada. 3. Department of Anesthesiology and Pain Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8L6, Canada; The Ottawa Hospital Civic Campus, Department of Anesthesiology and Pain Medicine, 1053 Carling Avenue, Mail Stop 249, Ottawa, Ontario K1Y 4E9, Canada.