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Arquivos Brasileiros de Cardiologia

Print version ISSN 0066-782XOn-line version ISSN 1678-4170


VIECILI, Paulo R.; PAMPLONA, David; CESENA, Fernando H. Y.  and  LUZ, Protásio L. da. Coronary steal due to collateral circulation from circumflex coronary to right pulmonary artery leading to unstable angina in Takayasu's arteritis. Arq. Bras. Cardiol. [online]. 1997, vol.69, n.2, pp.129-132. ISSN 0066-782X.

A sixty three year old woman suffering from Takayasu's arteritis with involvement of the aortic arch, subclavia arteries and occlusion of the right pulmonary artery, developed progressive precordial pain. Exercise electrocardiogram disclosed ST segment depression. Coronary arteriograms demonstrated no coronary stenosis, but collateral circulation arising from circumflex coronary artery to right pulmonary artery. The collateral blood flow was considered to be of great importance, and causing the coronary steal syndrome, leading to angina pectoris.

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