Doctors have the right and the ethical responsibility to pull patients off life support if they decide treatment is futile – and should not need patient or family consent to do so, lawyers for two doctors at Toronto’s Sunnybrook Hospital will argue in Ontario’s highest court. The Court of Appeal’s decision will not only determine the fate of a man who has been comatose in a Toronto hospital for most of the time since he moved to Canada from Iran, it could have wide-ranging implications for the ability of patients to determine the course of their treatment and the right of medical professionals to make those decisions.