Arq Bras Cardiol: Imagem cardiovasc 2021; 34(4): eabc239
Rare Incidental Finding on Coronary Artery CT Angiography: Left Main Coronary Artery Atresia
DOI: 10.47593/2675-312X/20213404eabc239
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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