03 The prehospital 12 lead electrocardiogram is associated with improved outcomes in patients with acute coronary syndromes presenting to emergency medical services: a nationwide linked cohort study

Background Use of the Pre-Hospital 12-lead Electrocardiogram (PHECG) is recommended in patients presenting to emergency medical services (EMS) with suspected acute coronary syndrome (ACS). Objectives To investigate differences in mortality between those who did/did not receive PHECG. Methods Population-based, linked cohort study using Myocardial Ischaemia National Audit Project (MINAP) data from 2010-2017. Results Of 330,713 patients, 263,420 (79.6%) had PHECG, 67,293 (20.3%) did not. 30-day mortality was 7.8% overall, 7.1% with PHECG vs 10.9% without PHECG (adjusted Odds Ratio [aOR] 0.772, 95% confidence interval [CI] 0.748-0.795, p Conclusion PHECG was associated with lower mortality at 30 days and 1 year in both STEMI and non-STEMI patients.