Anomalous Coronary Arteries: A Cause for Malignant Arrhythmias

Anomalous aortic origin of a coronary artery (AAOCA) is a congenital condition that can lead to sudden cardiac death (SCD), particularly among young individuals. The cause of SCD is thought to be ischemia, primarily related to the course of the anomalous coronary artery. Surgical intervention, such as unroofing or coronary revascularization, is the preferred management modality for patients with evidence of ischemia or concomitant fixed obstruction. Herein, we presented a case of a 24-year-old male admitted to the emergency department with a history of palpitations, dyspnea, diaphoresis, and syncope. The patient had no prior medical diseases and was eventually diagnosed with an anomalous right coronary artery (ARCA) originating from the left coronary sinus. The patient underwent surgical unroofing of the ARCA to prevent further episodes of ischemia and ventricular arrhythmias. The case highlights that coronary artery anomalies can be life-threatening and lead to SCD, especially in young individuals with no risk factors. Investigating coronary anomalies in medically free patients presenting with cardiac symptoms and arrhythmias is crucial.