Anomalous Right Coronary Artery With Interarterial Course Presenting As Exercise-Induced Inferior ST-Elevation
Shan Zaidi1, Ashley M Porter2, Satyajeet Roy3
1Department of Cardiology, Cooper Medical School of Rowan University, Camden, USA.
Cureus
|June 29, 2026
Summary
An anomalous right coronary artery (ARCA) is a rare congenital condition where the right coronary artery originates abnormally. Early recognition and management are crucial for preventing myocardial ischemia and sudden cardiac death.
Area of Science:
- Cardiology
- Congenital Heart Disease
- Interventional Cardiology
Background:
- Anomalous right coronary artery (ARCA) is a rare congenital anomaly where the RCA arises from an atypical location, often the left sinus of Valsalva or left main coronary artery.
- This condition can lead to myocardial ischemia, exertional angina, and sudden cardiac death, particularly when the RCA follows an interarterial course.
- ARCA is frequently associated with a stenotic ostium and an acute origin angle, increasing the risk of compression.
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