02 - Bradicardia Sinusal Diferencia Oclusão da Artéria Coronária Direita da Artéria Circunflexa em Pacientes com Infarto do Miocárdio Inferior

Sinus Bradycardia Differentiates Occlusion of the Right Coronary Artery from the Left Circumflex Artery in Patients with Inferior Myocardial Infarction. . Bradicardia Sinusal Diferencia Oclusão da Artéria Coronária Direita da Artéria Circunflexa em Pacientes com Infarto do Miocárdio Inferior. . Carlos V. Serrano Jr., MD. Luiz A. Bortolotto, MD. Luiz Antônio M. César, PhD, MD. Maria C. Solimene, PhD, MD. Antonio P. Mansur, MD. José Carlos Nicolau, PhD, MD. José Antônio F. Ramires, PhD, MD. . Heart Institute, Faculty of Medicine, University of São Paulo. This work was supported in part by a research grant from the "Fundação E. J. Zerbini".. . Uniterms: sinus bradycardia, heart rate, inferior myocardial infarction, coronary artery disease.. . Summary . . Divergence of right coronary artery (RCA) from left circumflex artery (LCxA) occlusion may be difficult since both can present an electrocardiographic pattern of inferior myocardial infarction (IMI). We studied 133 patients with IMI, 92 patients with RCA occlusion and 41 patients with LCxA occlusion. Risk factors such as previous MI, arterial hypertension, diabetes, smoking, and dislipemia, were similar for RCA and LCxA occlusions. Patients with RCA occlusion had a higher incidence of isolated IMI than patients with LCxA occlusion, 50% vs 17%, respectively (P<0.001). . . Arterial ...

Palavras chave: patients, occlusion, artery, rca, lcxa, phd, artéria, inferior, lcxa occlusion, inferior myocardial, coronary artery, myocardial, imi, coronary, circunflexa pacientes infarto, infarto miocárdio, p, right, left, infarction,