Collateral circulation via a rare, anomalously arising right ventricular branch
Anil Kumar1, Mohammed Murtaza, Shahriar Yazdanfar
1Department of Medicine, Sound Shore of Westchester, New York Medical College, New Rochelle, New York, USA.
The Journal of Invasive Cardiology
|April 10, 2008
Summary
An unusual coronary artery variation, a separate right ventricular branch from the aortic root, provided collateral circulation to an occluded right coronary artery. This rare anatomical finding offers new insights into coronary collateral pathways.
Area of Science:
- Cardiovascular anatomy
- Interventional cardiology
- Coronary artery disease
Background:
- Coronary artery anatomy exhibits frequent variations, typically benign.
- Angiographic interpretation can be complicated by these anatomical variations.
- Most coronary anomalies have no significant clinical impact.
Observation:
- A case report details a chronically occluded proximal right coronary artery.
- An anomalous separate right ventricular branch originated directly from the aortic root.
- This anomalous vessel served as a significant collateral to the region distal to the occlusion.
Findings:
- The anomalous right ventricular branch provided substantial collateral flow.
- This anatomical variation is hypothesized to be a compensatory mechanism for coronary occlusion.
- This represents a previously unreported coronary artery anomaly.
Implications:
- Understanding rare coronary variations is crucial for accurate angiographic diagnosis.
- This case expands the known spectrum of coronary collateral pathways.
- Further research into anomalous coronary origins may reveal novel therapeutic targets.
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