Abstract
Acute occlusion of the left anterior descending coronary artery (LAD) generally results in ST segment elevations in precordial leads and reciprocal ST segment depression in inferior leads. The occurrence of isolated inferior myocardial infarction due to occlusion of LAD is very rare. We describe an isolated acute inferior myocardial infarction due to occlusion of a wrapped LAD at the apex which continues as the large posterior descending coronary artery (PDA) beyond the occlusion.
Highlights
Acute occlusion of the left anterior descending coronary artery (LAD) generally results in ST segment elevations in precordial leads and reciprocal ST segment depression in inferior leads
Acute inferior wall myocardial infarction is usually due to occlusion of the right coronary artery (RCA) and is rarely due to occlusion of left circumflex coronary artery (LCX)
Simultaneous anterior and inferior myocardial infarction due to distal LAD occlusion have been described, but isolated inferior wall infarction due to LAD occlusion is rarely reported. This was due to unusual anatomy where long wrapped LAD continues to form the posterior descending coronary artery (PDA) which supplied most of the inferior wall
Summary
Acute occlusion of the left anterior descending coronary artery (LAD) generally results in ST segment elevations in precordial leads and reciprocal ST segment depression in inferior leads. The occurrence of isolated inferior myocardial infarction due to occlusion of LAD is very rare. We describe an isolated acute inferior myocardial infarction due to occlusion of a wrapped LAD at the apex which continues as the large posterior descending coronary artery (PDA) beyond the occlusion
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