Spectrum of the anomalous origin of the coronary arteries
Aldo Cabello-Ganem1, Adrian Espejel-Guzman2, Alexis D Aparicio-Ortiz1
1Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Juan Badiano Nº 1, Colonia Seccion XVI, Tlalpan, Mexico City, 14030, Mexico.
Insights
Anomalous origin of the coronary arteries (AOCA) can be asymptomatic or cause chest pain and sudden cardiac death. Imaging is crucial for diagnosis, with echocardiography and CT scans providing vital anatomical details.
Area of Science:
- Cardiology
- Medical Imaging
- Anatomical Pathology
Background:
- Anomalous origin of the coronary arteries (AOCA) encompasses diverse anatomical variations.
- While often benign, certain AOCA patterns are linked to significant morbidity, including chest pain and sudden cardiac death.
Observation:
- This report details four cases of anomalous aortic origin of a coronary artery (AAOCA).
- The cases include variations affecting the right coronary artery, circumflex artery, and left anterior descending artery, with one case featuring a retroaortic trajectory.
- Clinical manifestations were discussed, noting similarities across patients despite differing anatomical patterns.
Findings:
- Multiple imaging modalities are essential for evaluating AOCA.
- Transthoracic echocardiography serves as the initial diagnostic tool.
- Cardiac computed tomography offers comprehensive visualization of coronary and cardiac anatomy.
Implications:
- Accurate diagnosis of AOCA through advanced imaging is critical for risk stratification.
- Understanding AOCA patterns aids in managing patients at risk for cardiac events.
- Multimodality imaging ensures thorough assessment and guides clinical management strategies.
Abstract:
The anomalous origin of the coronary arteries (AOCA) has several patterns. Most are functional and asymptomatic. However, some are associated with persistent chest pain and sudden cardiac death. Multiple imaging techniques are available for the assessment of AOCA. We present a report of 4 cases with AOCA, including the anomalous aortic origin of a coronary artery (AAOCA) of the right coronary artery, AAOCA of the circumflex artery, AAOCA of the left anterior descending artery, and AAOCA of the circumflex artery with retroaortic trajectory, in which the clinical manifestations throughout the cases are discussed, highlighting the similarity among patients despite having different patterns. Multiple imaging techniques are indispensable for assessing AOCA, where transthoracic echocardiogram is the first-line study, and cardiac computed tomography provides detailed cardiac and coronary anatomy.
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