Anomalous right coronary artery and aborted sudden cardiac death.

Anomalous aortic origin of the right coronary artery poses serious risks when involving high-risk features such as a long intramural course or a slit-like orifice, with demand ischaemia as the likely pathophysiology of sudden cardiac arrest. This case links sudden cardiac arrest to demand ischaemia, confirmed by cardiac MRI showing a transmural infarct in the right coronary artery territory. This is a rare case demonstrating transmural infarction in a patient with an anomalous aortic origin of the right coronary artery, as demonstrated by cardiac MRI findings.