Reciprocal ST-segment changes in acute myocardial infarction

Abstract

Objective: The presence of ST depression in electrocardiogram of a patient with STEMI may represent a reciprocal electrical effect or true remote ischemia, which has prognostic value. This study was conducted to investigate the relationship between ischemic regions through coronary angiographic findings with reciprocal ST-segment changes in acute myocardial infarction.
Methodology: From March 2007 to May 2008, 55 consecutive patients with diagnosis of acute myocardial infarction who had reciprocal ST depressions in electrocardiogram and were candidate for coronary angiography were recruited in our study. The amount of ST-segment depression at 0.08 seconds after the J point in the reciprocal leads on admission 12-lead electrocardiograms of the patients were evaluated for the quantification of reciprocal ST depressions (mm).