Francois Lemay1,2, Jeremy Cooper3, Sarah Thompson4, Jeanette Scott4. 1. Département d'anesthésiologie et de soins intensifs, Université Laval, Quebec, Canada. francois.lemay.5@ulaval.ca. 2. Department of Anaesthesiology, University of Auckland, Auckland, New Zealand. francois.lemay.5@ulaval.ca. 3. Green Lane Department of Cardiothoracic and ORL Anaesthesia, Auckland City Hospital, Auckland, New Zealand. 4. Department of Anaesthesia, Auckland City Hospital, Auckland, New Zealand.