Percutaneous coronary intervention in patients with anomalous origin of coronary artery presenting with acute coronary syndrome: A case series.

Coronary artery anomalies are found in 0.6%-1.5% of patients undergoing diagnostic coronary angiogram. Intervention in these patients poses a particular technical challenge secondary to the aberrancies in the vessel origin and course. From March 2011 to February 2013, 13 cases with complex coronary artery anomalies were observed among 2482 patients undergoing CAG (0.52%) at our cath lab. Only three patients had severe stenosis in the anomalous artery sufficient to require an intervention and had presented with myocardial infarction. PCI was performed successfully in these 3 patients two of which had anomalous left circumflex artery and the other having an anomalous right coronary artery.