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Echocardiographic imaging of anomalous origin of the coronary arteries
Meryl S Cohen1, René J Herlong, Norman H Silverman
1Division of Cardiology, The Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, United States of America. cohenm@email.chop.edu
Insights
Diagnosing coronary artery anomalies, like anomalous origin from the pulmonary trunk, is crucial. Echocardiography is key for identifying these congenital heart conditions, improving patient outcomes.
Area of Science:
- Cardiology
- Pediatric Cardiology
- Medical Imaging
Background:
- Coronary arterial anomalies were historically challenging to diagnose non-invasively.
- Echocardiography is now standard for identifying coronary arterial origins in children.
- Anomalous origin of a coronary artery from the pulmonary trunk is a critical diagnosis.
Purpose of the Study:
- To highlight the diagnostic capabilities of echocardiography for coronary arterial anomalies.
- To differentiate between anomalous origin from the pulmonary trunk and other coronary anomalies.
- To emphasize the importance of meticulous echocardiographic examination of coronary origins.
Main Methods:
- Routine pediatric echocardiography for identifying coronary arterial origins.
- Echocardiographic assessment of left ventricular function, mitral regurgitation, and collateral flow.
- Visualization of the anomalous coronary artery arising from the pulmonary trunk when present.
Main Results:
- Echocardiography can diagnose anomalous origin of a coronary artery from the pulmonary trunk.
- Associated findings may include left ventricular dilation, abnormal function, and mitral regurgitation.
- Anomalous aortic origin of a coronary artery can present with sudden death; echocardiography usually shows normal ventricular function.
Conclusions:
- Echocardiography is effective for diagnosing coronary arterial anomalies, including anomalous origin from the pulmonary trunk.
- Meticulous attention to coronary origins during echocardiography is vital for diagnosis.
- Advanced imaging (CT, MRI) or cardiac catheterization may be needed for confirmation or detailed anatomy when echocardiography is inconclusive.
Abstract:
In the past, coronary arterial anomalies have been difficult to diagnose by non-invasive methods. Identification of coronary arterial origins is now a routine part of the standard paediatric echocardiogram. Anomalous origin of a coronary artery from the pulmonary trunk is an extremely important diagnosis to make. Many echocardiographic features are not directly related to the visualisation of the coronary arterial origin. Left ventricular dilation and abnormal ventricular performance are common, along with mitral regurgitation and evidence of collateralisation of the flow from the coronary artery that has an aortic origin. In some cases, the anomalous coronary artery can be seen to arise directly from the pulmonary trunk. Congenital atresia of the main stem of the left coronary artery has a similar echocardiographic presentation, except that its aortic origin is not determined. Anomalous aortic origin of the coronary artery has important implications, as the first presenting symptom can be sudden death. With meticulous attention to the origins of the coronary arteries, echocardiographic diagnosis can also be achieved. In contrast to the anomalous origin of a coronary artery from the pulmonary trunk, ventricular performance is usually normal. Whenever there is doubt as to the definition of the origin of the coronary arteries and, indeed, when there is serious clinical concern that a coronary artery has an anomalous origin, other testing, such as cine-computed tomography, magnetic resonance imaging, or cardiac catheterisation may be indicated for confirmation or to provide greater anatomic detail.
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