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Focus on Stemi

Implementation of Specialty Centers for Patients with ST-Segment Elevation Myocardial Infarction

, MD, MPH, , MD, , MD, PhD & , RN
Pages 215-222 | Received 04 Jun 2008, Accepted 29 Aug 2008, Published online: 02 Jul 2009
 

Abstract

Background. Early percutaneous coronary intervention (PCI) has been shown to be superior to fibrinolytic therapy andis associated with reduced morbidity andmortality for patients with ST-segment elevation myocardial infarction (STEMI). Objective. To determine the performance of a regional system with prehospital 12-lead electrocardiogram (ECG) identification of STEMI patients anddirect paramedic transport to STEMI receiving centers (SRCs) for provision of primary PCI. Methods. This was a prospective study evaluating the first year of implementation of a regional SRC network to determine the key time intervals for patients identified with STEMI in the prehospital setting. Results. During the 12-month study period, 1,220 patients with a suspected STEMI were identified on prehospital 12-lead ECG, of whom 734 (60%) underwent emergency PCI. A door-to-balloon time of 90 minutes or less was achieved for 651 (89%) patients, and459 (62.5%) had EMS–patient contact-to-balloon times ≤ 90 minutes. Transport of suspected STEMI patients to an SRC resulted in ambulance diversion from a closer ED for 31% of patients anda median increase in transport time of 3.8 minutes. Conclusion. Door-to-balloon times within the 90-minute benchmark were achieved for almost 90% of STEMI patients transported by paramedics after implementing our regionalized SRC system

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