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] Identification of the site of occlusion by noninvasive means can help predict the
size of the infarct and help in guiding interventions (Fig. 1, Fig. 2). Previous studies have demonstrated good correlation between electrocardiographic
(ECG) findings and localization of the lesion to the first diagonal branch. Here,
we present a case of acute diagonal occlusion with characteristic ECG findings.
Fig. 1Prehospital ECG demonstrating ST-elevation in leads 1, v2, and avL and ST-depressions
in II, III, and avF.
Isolated mid-anterior myocardial infarction: a special electrocardiographic sub-type of acute myocardial infarction consisting of ST-elevation in non-consecutive leads and two different morphologic types of ST-depression.
Acute myocardial infarction entailing ST-segment elevation in lead aVL: electrocardiographic differentiation among occlusion of the left anterior descending, first diagonal, and first obtuse marginal coronary arteries.
Value of the electrocardiogram in localizing the occlusion site in the left anterior descending coronary artery in acute anterior myocardial infarction.
