RESUMO
The purpose of this study was to evaluate whether high levels and small isoforms of lipoprotein (a) [Lp(a)] are markers of risk of early myocardial infarction and markers of the severity of coronary atherosclerosis. Lp(a) levels and small apo(a) isoforms were higher in 222 patients than in 199 controls (p<0.001). In patients, Lp(a)> or =30 mg/dL was associated with the presence of coronary lesions (p=0.007) and the severity of coronary atherosclerosis (p=0.002). The present study suggests that Lp(a) levels and small isoforms are markers of early myocardial infarction and that Lp(a) levels > or =30 mg/dL are associated with severe patterns of coronary atherosclerosis.
Assuntos
Lipoproteína(a)/sangue , Isquemia Miocárdica/patologia , Adulto , Biomarcadores/sangue , Estudos de Casos e Controles , Doença da Artéria Coronariana , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Isquemia Miocárdica/diagnóstico , Isoformas de Proteínas , Índice de Gravidade de DoençaRESUMO
Epsilon wave is an unusual electrocardiographical finding, which may appear in other pathological conditions besides the arrhythmogenic right ventricular dysplasia, particularly in the acute myocardial infarction of the right ventricle, the inferior, or the posterior wall of the left ventricle. Its real incidence in these acute coronary syndromes remains unknown and will be probably difficult to assert, since it may be unnoticed by inexperienced physicians because of its little voltage. The outstanding interest of this case lies in the clear electrocardiographical images and in the step-by-step differential diagnosis discussed by the authors.
