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Focus on echocardiographic and Doppler analysis of coronary artery abnormal origin from the pulmonary trunk with mild
Pierre-Yves Courand1, André Bozio, Jean Ninet
1Department of Congenital Heart Disease, Louis Pradel Hospital, Hospices civils de Lyon, Lyon, France. pycourand@hotmail.com
Insights
Late presentation of abnormal coronary artery from the pulmonary artery (ACAPA) is rare but can cause sudden cardiac death. Diagnosis via echocardiography and Doppler, followed by aortic implantation, effectively restores dual coronary circulation and prevents myocardial ischemia.
Area of Science:
- Cardiovascular Medicine
- Pediatric Cardiology
- Diagnostic Imaging
Background:
- Abnormal coronary artery from the pulmonary artery (ACAPA) typically presents in infancy, causing severe heart failure.
- Late ACAPA presentation is uncommon, characterized by collateral development, mild symptoms, and risk of sudden cardiac death.
Purpose of the Study:
- To describe the clinical presentation, diagnostic imaging methods, and outcomes of patients with late ACAPA.
- To evaluate the effectiveness of surgical intervention for late ACAPA.
Main Methods:
- Retrospective review of a single-center database for patients diagnosed with ACAPA after one year of age.
- Analysis of echocardiography and Doppler imaging findings, including direct and indirect signs of ACAPA.
- Review of surgical outcomes and long-term follow-up data.
Main Results:
- Ten patients with late ACAPA (1.1-64 years) were identified: 6 with ALCAPA and 4 with ARCAPA.
- Echocardiography/Doppler revealed direct signs (abnormal ostium, retrograde flow) and indirect signs (collaterals, vessel dilatation).
- Nine patients underwent successful aortic implantation, with all asymptomatic post-surgery except one requiring reoperation.
Conclusions:
- Noninvasive cardiovascular imaging, particularly echocardiography and Doppler, can reliably diagnose late ACAPA.
- Direct aortic implantation is an effective surgical strategy for establishing dual coronary circulation and preventing myocardial ischemia in late ACAPA.
Background:
Late presentation of abnormal origin of coronary artery from the pulmonary artery (ACAPA) is uncommon compared with early presentation, which usually induces extended myocardial necrosis and severe heart failure. The late presentation is characterized by abundant development of intercoronary collaterals resulting in mild and rare symptoms, but nevertheless can cause sudden cardiac death. Our objective was to describe presentation, cardiovascular imaging methods for diagnosis and outcomes of patients with late presentation of ACAP.
Methods:
The study is a retrospective review of a single-center database to identify all patients diagnosed with ACAPA beyond the first year of life.
Results:
From 1976 to 2011, 10 patients were identified with ACAPA at the age of 1.1-64 years: 6 with left coronary artery from the pulmonary artery (ALCAPA) and 4 with right coronary artery from the pulmonary artery (ARCAPA). Echocardiography and Doppler imaging evidenced: (1) direct signs: the abnormal coronary ostium arising from the pulmonary trunk with retrograde coronary artery flow and (2) indirect signs: abundant intercoronary septal collaterals with anterograde flow (ARCAPA) or retrograde flow (ALCAPA) and dilatation of the controlateral normally originated coronary artery. Nine patients underwent surgical implantation of the ACAPA into the ascending aorta. After 7.9 years mean follow-up, all were asymptomatic except one who required a second surgery.
Conclusions:
Noninvasive cardiovascular imaging, namely transthoracic echocardiography and Doppler specific parameters, can reach diagnosis of late presentation of ACAPA. Direct aortic implantation is a reliable and effective to establish dual coronary artery circulation and prevent risks due to myocardial ischemia.
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