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Arq. neuropsiquiatr ; 76(10): 649-653, Oct. 2018. tab
Article in English | LILACS | ID: biblio-973922

ABSTRACT

ABSTRACT The aim of the study was to analyze the long-term recurrence rate in patients with a first-ever ischemic stroke secondary to intracranial large artery atherosclerosis (LAA) in a Brazilian population. Methods: All stroke patients admitted to the hospital between October 2012 and September 2015 were evaluated. The stroke mechanism subtypes were classified as cardioembolism, LAA, small-vessel occlusion, other determined etiologies, and stroke of undetermined etiology. Results: The 359 first-ever ischemic stroke patients were followed up for a mean time of 21.6 ± 15.1 months. The LAA intracranial (38.9%) and extracranial (24.6%) stroke patients presented with a higher stroke recurrence. Intracranial LAA [HR, 10.2 (3.6-29.1); p < 0.001] and extracranial LAA [HR, 5.05 (1.79-14.2); p = 0.002] were the only conditions to show positive correlation with the recurrence rate, after adjusting for risk factors, thrombolysis, and National Institutes of Health Stroke Scale score at admission. Conclusion: Intracranial LAA presents a higher incidence of recurrence of ischemic stroke when compared with other etiologies in a Southern Brazilian population.


RESUMO O objetivo do presente estudo é analisar a taxa de recorrência a longo prazo em pacientes com o primeiro AVCi secundário à aterosclerose de grande artéria intracraniana em uma amostra brasileira. Métodos: Pacientes admitidos entre outubro de 2012 e setembro de 2015 foram analisados. Os subtipos do mecanismo de AVC foram classificados como cardioembolismo, aterosclerose de grandes artérias, oclusão de pequenos vasos, outras etiologias determinadas e AVCi de causa indeterminada. Resultados: Foram avaliados 359 pacientes com primeiro AVCi. O tempo médio de seguimento foi de 21,6 ± 15,1 meses. A aterosclerose de grande artéria, intracraniana (38,9%) e extracraniana (24,6%), apresentou a maior taxa de recorrência. A aterosclerose de grande artéria intracraniana [HR, 10,2 (3,6-29,1); p < 0,001] e extracraniana [HR, 5,05 (1,79-14,2); p = 0,002] demonstraram correlação positiva com a taxa de recorrência, após o ajuste para fatores de risco, trombólise e gravidade dos sintomas na admissão. Conclusão: A aterosclerose de grande artéria, tanto intracraniana como extracraniana, apresenta maior recorrência comparado aos outros mecanismos de AVCi em uma amostra do Sul do Brasil.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Intracranial Arteriosclerosis/complications , Stroke/etiology , Recurrence , Brazil/epidemiology , Intracranial Arteriosclerosis/diagnosis , Intracranial Arteriosclerosis/physiopathology , Intracranial Arteriosclerosis/epidemiology , Incidence , Risk Factors , Follow-Up Studies , Stroke/diagnosis , Stroke/physiopathology , Stroke/epidemiology
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