Key result
Cardiac MRI links anomalous RCA to sudden cardiac arrest via demand ischemia and transmural infarction.
Why the study?
Anomalous aortic origin of the right coronary artery poses serious risks with high-risk features, with demand ischaemia as the likely pathophysiology of sudden cardiac arrest.
Case Report (n=1)
Demonstrates a rare case of transmural infarction and sudden cardiac arrest caused by demand ischemia in a patient with an anomalous right coronary artery.
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Consider anomalous RCA in young SCA survivors; hypothesis-generating for demand ischaemia causing transmural MI.
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.
McIntyre et al. (2026) conducted a case report in Anomalous aortic origin of the right coronary artery (n=1). Cardiac MRI was evaluated. Cardiac MRI demonstrated a transmural infarction in a patient with an anomalous aortic origin of the right coronary artery, linking sudden cardiac arrest to demand ischaemia.
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