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Case report of asymptomatic very late presentation of ALCAPA syndrome: review of the literature since pathophysiology until treatment


ABSTRACT: Abstract

Background

Anomalous origin of the left coronary artery (LCA) from the pulmonary artery (ALCAPA) is an unusual congenital heart defect which affects approximately 1 in 300 000 live births and accounts for 0.5% of all congenital heart disease. Without surgical intervention, most patients die in infancy (nearly 90%).

Case summary

We present a rare case of an asymptomatic 67-year-old female. Transthoracic echocardiography demonstrated a dilated right coronary artery (RCA) and multiple collaterals. ALCAPA was confirmed by multidetector computed tomography. The left main artery was seen originating from the pulmonary artery and well-developed collaterals were visualized between the RCA and LCA. No areas of myocardial infarction were identified on cardiac magnetic resonance. Stress studies showed no inducible ischaemia.

Discussion

Our clinical case of an ALCAPA patient who survived and remained asymptomatic to their late 60’s, highlights the importance of well-collateralized and pressurized coronary system to maintain adequate myocardial perfusion. Physicians should be aware of this congenital anomaly as appropriate early diagnosis is crucial to prevent irreversible myocardial damage, acute ischaemia, and arrhythmias, and can improve patient outcomes. Surgical treatment is suggested irrespective of symptomatology or the presence of inducible myocardial ischaemia.

SUBMITTER: Cambronero-Cortinas E 

PROVIDER: S-EPMC7780492 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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