Higher frequency of atrial fibrillation linked to colder seasons and air temperature on the day of ischemic stroke onset

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...

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Autores principales: Fustinori, Osvaldo, Saposnik, Gustavo, Esnaola y Rojas, María Martha, Lakkis, Susan Gabriela, Sposato, Luciano A.
Otros Autores: Instituto de Neurociencias (Argentina)
Formato: Artículo
Lenguaje:Inglés
Publicado: 2019
Materias:
TEMPERATURA
FIBRILACION AURICULAR
TIEMPO
ESTACIONES METEOROLOGICAS
ACCIDENTE CEREBROVASCULAR
Acceso en línea:https://repositorio.uca.edu.ar/handle/123456789/5432
Aporte de:
Repositorio Institucional de la Universidad Católica Argentina (UCA) de Universidad Católica Argentina
id I33-R139123456789-5432
record_format dspace
institution Universidad Católica Argentina
institution_str I-33
repository_str R-139
collection Repositorio Institucional de la Universidad Católica Argentina (UCA)
language Inglés
topic TEMPERATURA
FIBRILACION AURICULAR
TIEMPO
ESTACIONES METEOROLOGICAS
ACCIDENTE CEREBROVASCULAR
spellingShingle TEMPERATURA
FIBRILACION AURICULAR
TIEMPO
ESTACIONES METEOROLOGICAS
ACCIDENTE CEREBROVASCULAR
Fustinori, Osvaldo
Saposnik, Gustavo
Esnaola y Rojas, María Martha
Lakkis, Susan Gabriela
Sposato, Luciano A.
Higher frequency of atrial fibrillation linked to colder seasons and air temperature on the day of ischemic stroke onset
topic_facet TEMPERATURA
FIBRILACION AURICULAR
TIEMPO
ESTACIONES METEOROLOGICAS
ACCIDENTE CEREBROVASCULAR
description 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
author2 Instituto de Neurociencias (Argentina)
author_facet Instituto de Neurociencias (Argentina)
Fustinori, Osvaldo
Saposnik, Gustavo
Esnaola y Rojas, María Martha
Lakkis, Susan Gabriela
Sposato, Luciano A.
format Artículo
author Fustinori, Osvaldo
Saposnik, Gustavo
Esnaola y Rojas, María Martha
Lakkis, Susan Gabriela
Sposato, Luciano A.
author_sort Fustinori, Osvaldo
title Higher frequency of atrial fibrillation linked to colder seasons and air temperature on the day of ischemic stroke onset
title_short Higher frequency of atrial fibrillation linked to colder seasons and air temperature on the day of ischemic stroke onset
title_full Higher frequency of atrial fibrillation linked to colder seasons and air temperature on the day of ischemic stroke onset
title_fullStr Higher frequency of atrial fibrillation linked to colder seasons and air temperature on the day of ischemic stroke onset
title_full_unstemmed Higher frequency of atrial fibrillation linked to colder seasons and air temperature on the day of ischemic stroke onset
title_sort higher frequency of atrial fibrillation linked to colder seasons and air temperature on the day of ischemic stroke onset
publishDate 2019
url https://repositorio.uca.edu.ar/handle/123456789/5432
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