Abnormality, Heart – ABC CARDIOL

ABCIC

Case Report

Rare Incidental Finding on Coronary Artery CT Angiography: Left Main Coronary Artery Atresia

Maria Eduarda Menezes de Siqueira et al. Mayra Isabel Dias Ana Claudia Vincezi Raudan Uski Luciano Figueiredo de Aguiar Filho

Introduction

Congenital left main coronary artery atresia (CLMCAA) is a coronary anomaly in which the left coronary ostium or trunk is absent. The anterior descending (AD) and circumflex (CX) arteries are usually connected and proximally end blindly. Left chamber perfusion is provided by the right coronary (RC) collaterals. It is the rarest coronary anomaly, with fewer than 70 cases described in the literature. The clinical CLMCAA spectrum ranges from asymptomatic cases (due to an efficient collateral system) to symptoms such as angina, tachyarrhythmias, syncope, and sudden death.^, Surgical revascularization is recommended in symptomatic patients; however, preventive surgical treatment is controversial in asymptomatic patients without inducible myocardial ischemia.^–

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Rare Incidental Finding on Coronary Artery CT Angiography: Left Main Coronary Artery Atresia

Introduction

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