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Case Rep Cardiol. 2015;2015:580543. doi: 10.1155/2015/580543. Epub 2015 Apr 8.

Type 4 dual left anterior descending artery: a very rare coronary anomaly circulation.

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Department of Interventional Cardiology, Heart Institute of the University of São Paulo, Avenida Dr. Enéas de Carvalho Aguiar 44, 05403-900 São Paulo, SP, Brazil.


Coronary artery anomalies are congenital changes in their origin, course, and/or structure. They are the second most frequent cause of sudden death in young athletes. Dual LAD artery is a rare coronary anomaly. We present the case of a 44-year-old man with recent onset exertional angina and documented ischemia whose coronary angiogram and computed tomography (CT) showed type 4 dual LAD artery, the rarest and most interesting variant.

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