Please use this identifier to cite or link to this item: https://repositorio.uca.edu.ar/handle/123456789/5432
Título : Higher frequency of atrial fibrillation linked to colder seasons and air temperature on the day of ischemic stroke onset
Autor : Fustinori, Osvaldo 
Saposnik, Gustavo 
Esnaola y Rojas, María Martha 
Lakkis, Susan Gabriela 
Sposato, Luciano A. 
Otros colaboradores: Instituto de Neurociencias (Argentina)
St Michael’s Hospital (Canada). Stroke Outcomes Research Center
University of Toronto (Canada). Department of Medicine
University of Toronto (Canada). Department of Health Policy Management and Evaluation
Institute for Clinical Evaluative Sciences (Canada)
Hospital Dr. Cesar Milstein (Argentina). Departamento de Neurología
Universidad Católica Argentina (Buenos Aires). Equipo Interdisciplinario para el Estudio del Cambio Global
Fundación Favaloro (Argentina)
Fundación INECO (Argentina)
Palabras clave : TEMPERATURAFIBRILACION AURICULARTIEMPOESTACIONES METEOROLOGICASACCIDENTE CEREBROVASCULAR
Fecha de publicación : 2013
Cita : Fustinori, O., G. Saposnik, M. M. Esnaola y Rojas, S. G. Lakkis y L. A. Sposato. 2013. Higher frequency of atrial fibrillation linked to colder seasons and air temperature on the day of ischemic stroke onset [en línea]. Journal of stroke and cerebrovascular diseases 22(4). Disponible en: https://repositorio.uca.edu.ar/handle/123456789/5432
Resumen : Background: Whether a seasonal variation of atrial fibrillation among acute ischemic stroke (AIS) patients occurs is unknown. We studied the distribution of atrial fibrillation across seasons and air temperatures in a cohort of AIS patients. Methods: We selected 899 AIS patients from the Argentinean Stroke Registry (ReNACer), who were admitted to 43 centers in the Province of Buenos Aires. We recorded the minimum and maximum temperatures at local weather centers on the day and the city where each stroke occurred. We used the goodness-of-fit c2 test to assess the distribution of atrial fibrillation across seasons and air temperatures and the Pearson correlation coefficient to assess the relationship between these variables.We developed a regression model for testing the association between seasons and atrial fibrillation. Results: We found a seasonal variation in the occurrence of atrial fibrillation, with a peak in winter and a valley in summer (23.1% versus 14.0%, P,.001). The semester comprised by autumn and winter was associated with atrial fibrillation (Pearson P ,.001). Atrial fibrillation showed a nonhomogeneous distribution across ranges of temperature (P , .001, goodness-of-fit test), with a peak between 5C and 9C, and was associated with minimum (Pearson P 5 .042) and maximum (Pearson P 5.002) air temperature. After adjusting for significant covariates, there was a 2- fold risk of atrial fibrillation during autumn and winter. Conclusions: In this cohort of AIS patients, atrial fibrillation showed a seasonal variation and a nonhomogeneous distribution across air temperatures, with peaks in cold seasons and low temperatures on the day of stroke onset. Key Words: Ischemic stroke—atrial fibrillation—risk—season—temperature—weather
URI : https://repositorio.uca.edu.ar/handle/123456789/5432
Disciplina: INGENIERIA AMBIENTAL
Derechos: Acceso al texto completo del documento desde un puesto fijo de la Biblioteca Central
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