Association of winter exposure with ischemic stroke risk in nonvalvular atrial fibrillation within a CHADS₂-based risk framework: a nationwide Japanese administrative claims database study

Abstract Background Ischemic stroke, including transient ischemic attack, exhibits seasonal variation, and the association between winter exposure and ischemic stroke risk in patients with nonvalvular atrial fibrillation (NVAF) has not been fully characterized at the population level. We investigate...

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Hlavní autoři:	Ryusuke Sakuma, Shuko Nojiri, Takuya Uematsu, Masashi Nagao, Muneaki Ishijima, Yuji Nishizaki
Médium:	Artigo
Jazyk:	Inglês
Vydáno:	SpringerOpen 2026-07-01
Edice:	The Egyptian Heart Journal
Témata:	Nonvalvular atrial fibrillation Ischemic stroke CHADS₂ score Seasonal variation Winter exposure
On-line přístup:	https://doi.org/10.1186/s43044-026-00766-z
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