The study will be conducted in the regions of Peel and Halton in the province of Ontario. These two regions have a combined population of 1.6 million. The study population comprises adult patients meeting the study criteria who are diagnosed with STEMI out of hospital or in the ED and are accepted for primary PCI reperfusion therapy at Brampton Civic Hospital (Brampton, Ontario) or Trillium Health Partners (Mississauga, Ontario) during the study period.