Anomalous origin of the right coronary artery with an interarterial course and intramural part
Simon Fuglsang1, Johan Heiberg1, Jørgen Byg2
1Department of Cardiothoracic and Vascular Surgery, Aarhus University Hospital Skejby, Denmark.
Insights
Anomalous origin of the right coronary artery (RCA) from the left sinus is a rare condition causing chest pain. Surgical bypass (RIMA-RCA) effectively resolved symptoms in a patient with this congenital anomaly.
Area of Science:
- Cardiovascular Medicine
- Congenital Heart Disease
- Interventional Cardiology
Background:
- Anomalous origin and course of the right coronary artery (RCA) is a rare congenital anomaly.
- Undiscovered anomalies can be fatal, necessitating accurate diagnosis and management.
Purpose of the Study:
- To report a case of anomalous origin of the RCA from the left sinus with an inter-arterial course.
- To illustrate the unique imaging of the RCA's course and its contribution to understanding symptomatology.
Main Methods:
- Case report presentation of a patient with exercise-induced angina and dyspnea.
- Surgical intervention using Right Internal Mammary Artery to RCA (RIMA-RCA) bypass.
Main Results:
- The patient presented with symptoms attributed to the anomalous RCA course between the aorta and pulmonary artery.
- Successful RIMA-RCA bypass surgery resulted in complete symptom remission.
Conclusions:
- Compression of the RCA in its anomalous course or intramural path can cause symptoms.
- Surgical revascularization is an effective treatment for symptomatic anomalous RCA.
Introduction:
An anomalous origin and course of the right coronary artery (RCA)(1) is a very rare congenital anomaly that can be fatal if it remains undiscovered.
Presentation Of Case:
In this case report, we present a patient with a one-year history of exercise-induced angina and dyspnea caused by anomalous origin of the RCA from the left sinus, and anomalous course between the aorta and the pulmonary artery.
Discussion:
Possible mechanisms of this disease's symptomatology are compression of the RCA between the aorta and the pulmonary artery in its anomalous inter-arterial course, and squeezing of the RCA in the proximal intramural part.
Conclusion:
In this report, we present some unique images of the RCAs course, which contribute to the understanding of this disease's symptomatology. The patient successfully underwent surgery with Right Internal Mammary Artery to RCA (RIMA-RCA)(2) bypass with complete remission of all symptoms.
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