How do aging and comorbidities impact risk of ischemic stroke in patients with atrial fibrillation
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Updated: Feb 2, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Jo-Nan Liao1, Tze-Fan Chao1, Shih-Ann Chen1
1Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan.
Insights
Stroke risk in atrial fibrillation (AF) patients is complex. This review details stroke risk factors, focusing on the CHA₂DS₂-VASc score components and other potential risks for better prevention strategies.
Area of Science:
- Cardiology
- Neurology
- Geriatrics
Background:
- Atrial fibrillation (AF) significantly increases stroke risk.
- Effective stroke prevention in AF requires accurate risk stratification.
- Age and comorbidities are key determinants of AF-related stroke risk.
Purpose of the Study:
- To comprehensively review stroke risk factors in AF patients.
- To focus on the components of the CHA₂DS₂-VASc score.
- To discuss other potential risk factors beyond the CHA₂DS₂-VASc score.
Main Methods:
- Literature review of studies on stroke risk in AF.
- Analysis of factors contributing to the CHA₂DS₂-VASc score.
- Exploration of additional identified stroke risk factors.
Main Results:
- The CHA₂DS₂-VASc score effectively stratifies stroke risk in AF.
- Increasing age and specific comorbidities significantly elevate stroke risk.
- Other factors may also contribute to stroke risk in AF patients.
Conclusions:
- Understanding and stratifying stroke risk factors in AF is crucial for prevention.
- The CHA₂DS₂-VASc score is a vital tool, but other factors warrant consideration.
- Comprehensive risk assessment aids in tailoring stroke prevention strategies for AF patients.
Abstract:
Stroke is a notorious complication in patients with atrial fibrillation (AF) and risk stratification is pivotal for stroke prevention strategy. The risk of AF-related stroke is a mixture of complex interaction between increasing age and important comorbidities. Therefore, this article aims to provide a comprehensive review on these important risk factors of stroke in AF patients, mainly focusing on the component of CHA2DS2-VASc score, as well as some other potential risk factors.
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