Surgical management of anomalous aortic right coronary artery discovered during acute type A aortic dissection: a case report.

Anomalous aortic origin of the right coronary artery (RCA) is a rare anatomic anomaly that is present in ~1% of the general population, and is often discovered incidentally through imaging performed for another purpose. Despite being an uncommon phenomenon, aberrant right coronary arterial origins can have devastating manifestations in half of affected patients. These include myocardial infarction, arrhythmias, heart failure, syncope, and sudden cardiac death secondary to ischemia of the cardiac tissue. This report describes a case of a 48-year-old female patient that was initially found to have ST-elevation myocardial infarction. During cardiac catheterization, the patient was discovered to have a type A aortic dissection. Cardiothoracic surgery was consulted, and she was immediately transferred to the operating room for repair. During the procedure, an anomalous RCA was discovered with its origin in the dissected tissue, which was initially ligated and then bypassed using greater saphenous vein graft.