Combined anterior and inferior ST-segment elevation: Electrocardiographic differentiation between right coronary artery occlusion with predominant right ventricular infarction and distal left anterior descending branch occlusion

Seven cases are reported of acute right coronary artery occlusion and predominantly right ventricular myocardial infarction with typical ST-segment elevation in the precordial leads resembling acute anterior wall myocardial infarction. These electrocardiograms were compared with those of 5 unselected patients who had combined inferior and anterior ST-segment elevation due to a distal occlusion of the left anterior descending artery. In this manuscript, the electrocardiographic features of both conditions are briefly discussed.