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[Isolated anomalous origin of a septal artery from a third coronary ostium. Apropos of a case]
S Elhadad1, B Chevalier, P Guyon
1Service d'explorations hémodynamiques et de cardiologie interventionnelle, centre chirurgical Marie-Lannelongue, Plessis-Robinson.
Insights
A rare coronary artery anomaly, the anomalous origin of a septal artery from a separate ostium, was observed in a patient undergoing coronary angiography. This rare condition, seen in 0.5% of cases, can provide vital collateral circulation.
Area of Science:
- Cardiology
- Anatomical Variations
- Interventional Cardiology
Background:
- Coronary artery anomalies encompass variations in origin, course, and termination.
- Anomalous origins of main coronary arteries are less common than trajectory or fistula anomalies.
- Septal perforator artery anomalies, particularly separate ostial origins, are exceedingly rare.
Abstract:
The authors report the case of a patient undergoing coronary angiography for angina who had an anomalous origin of the septal perforator artery from a separate ostium. Anomalies of the coronary arteries may consist not only of anomalous trajectories and coronary fistulae but also of anomalous origins of the main coronary arteries. The anomalous origin of a septal artery from a separate ostium is very rare accounting for 0.5% of cases in the medical literature. In some cases, this artery provides a collateral circulation for occluded main coronary vessels, thereby preserving left ventricular contractility.