Importance and limits of pre-hospital electrocardiogram in patients with ST elevation myocardial infarction undergoing percutaneous coronary angioplasty
2011
Background: The purpose of this study is to present data on the effects of pre-hospital electrocardiogram (PH-ECG) on the outcome of ST elevation myocardial infarction (STEMI) patients treated with percutaneous coronary angioplasty (PCI) included in a registry undertaken in the Italian region of Lombardy. Pre-hospital 12-lead electrocardiogram is recommended by current guidelines in order to achieve faster times to reperfusion in patients with STEMI.Methods: The registry includes 3901 STEMI patients who underwent primary PCI over an 18-month period.Results: Mean age was 63 ± 12 years. Admission through the emergency medical system (EMS) occurred in 1603 patients (40%): they were older, more frequently had previous MI, TIMI flow = 0 at entry and were more frequently in Killip class >1 than patients who were not admitted through the EMS. Among the patients admitted through the EMS, PH-ECG was obtained in 475 patients (12%). These patients had less frequently an anterior MI, but more frequently had absence o...
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