Accelerating time to reperfusion in acute myocardial infarction: prehospital and emergency department strategies, systems of care, and pharmacologic interventions.

Although primary percutaneous coronary intervention has emerged as the preferred reperfusion strategy for patients with ST-segment elevation myocardial infarction (STEMI), it is available only in a minority of US hospitals. The fundamental problem is that there is presently no organized, uniform, national STEMI triage and treatment system that is comparable to the well-developed, highly successful system in the United States that directs major trauma victims to verified trauma centers. This article reviews prehospital and emergency department triage strategies, systems, and pharmacologic interventions for patients with STEMI that can help shorten the time to reperfusion in these patients.