Percutaneous Coronary Intervention in A Rare Case of Single Coronary Ostium Presented with ST Elevation Myocardial Infarction.

Anomalous aortic origin of the left coronary artery (AAOLCA) from the right sinus of Valsalva is a very rare coronary anomaly that can lead to sudden cardiac death (SCD), usually during or after strenuous exercise. The anatomical variation can follow five different courses: interarterial, subpulmonic (intraconal or intraseptal), prepulmonic, retroaortic, or retrocardiac. The interarterial variation is the pattern that has a stronger relationship with SCD. In patients with AAOLCA, ST-segment elevation myocardial infarction (STEMI) is a rare clinical presentation, and the management of an anomalous infarct-related coronary artery may be technically challenging. We report a case of a patient with an AAOLCA who presented with inferior STEMI and who underwent a successful percutaneous coronary intervention of the right coronary artery.