Abstract 15704: Clinical Significance of Synthesized 18lead Electrocardiography for ST Elevation Myocardial Infarction

Background: AHA scientific statement has reported that additional recordings from right-sided and posterior leads increase the diagnostic sensitivity for ST-elevation myocardial infarction (STEMI). However, those electrocardiography (ECG) leads have not been recorded routinely. The purpose of this study was to investigate whether synthesized 18-lead ECG, which enables recordings to be obtained from 6 synthesized leads (V3R, V4R, V5R, V7, V8 and V9) during standard 12-lead ECG, is useful for STEMI. Methods: In June 2015, we introduced routine use of synthesized 18-lead ECG for triage of emergency care in our emergency department (ED). ST-segment elevation or depression with at least 1 mm (0.1mV) in 2 or more contiguous leads defined positive as suspected acute coronary syndrome (ACS). The definitive diagnosis of ACS was made according to the Japanese Circulation Society guidelines. We investigated the impact of synthesized 18-lead ECG on STEMI when compared to standard 12-lead ECG. Results: Of the 11, 883 ...