Abstract
Dual left anterior descending artery (LAD) is a very rare congenital coronary anomaly that showed two left anterior descending arteries. Short anterior descending artery usually arises from the left coronary artery, while long anterior descending artery usually arises from the right coronary artery. It has no clinical significance unless atherosclerotic coronary artery disease superimposes. Coronary angiography revealed a variant of dual LAD coronary artery not previously described. In the case presented, the long LAD arises from the right sinus of Valsalva. We propose that this anatomy represents a new variant of dual LAD (Type VII). Here we describe a case of dual left anterior descending artery presenting with non-ST-segment elevation myocardial infarction.