Cited by 313Atrial Fibrillation Management and OutcomesAcute Ischemic Stroke ManagementCardiovascular and Diving-Related Complications

Risk of ischaemic stroke according to pattern of atrial fibrillation: analysis of 6563 aspirin-treated patients in ACTIVE-A and AVERROES

Vanassche, T., Lauw, M. N., Eikelboom, J. W., Healey, J. S., Hart, R. G., Alings, M., Avezum, A., Diaz, R. +5 more·2015·European Heart Journal

Abstract

AIMS: The pattern of atrial fibrillation (AF) occurrence-paroxysmal, persistent, or permanent-is associated with progressive stages of atrial dysfunction and structural changes and may therefore be associated with progressively higher stroke risk. However, previous studies have not consistently shown AF pattern to predict stroke but have been hampered by methodological shortcomings of low power, variable event ascertainment, and variable anticoagulant use. METHODS AND RESULTS: We analysed the rates of stroke and systemic embolism in 6563 aspirin-treated patients with AF from the ACTIVE-A/AVERROES databases. There was thorough searching for events and adjudication. Multivariable analyses were performed with the adjustment for known risk factors for stroke. Mean age of patients with paroxysmal, persistent, and permanent AF was 69.0 ± 9.9, 68.6 ± 10.2, and 71.9 ± 9.8 years (P < 0.001). The CHA2DS2-VASc score was similar in patients with paroxysmal and persistent AF (3.1 ± 1.4), but was higher in patients with permanent AF (3.6 ± 1.5, P < 0.001). Yearly ischaemic stroke rates were 2.1, 3.0, and 4.2% for paroxysmal, persistent, and permanent AF, respectively, with adjusted hazard ratio of 1.83 (P < 0.001) for permanent vs. paroxysmal and 1.44 (P = 0.02) for persistent vs. paroxysmal. Multivariable analysis identified age ≥ 75 year, sex, history of stroke or TIA, and AF pattern as independent predictors of stroke, with AF pattern being the second strongest predictor after prior stroke or TIA. CONCLUSION: In a large population of non-anticoagulated AF patients, pattern of AF was a strong independent predictor of stroke risk and may be helpful to assess the risk/benefit for anticoagulant therapy, especially in lower risk patients.

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Authors
Vanassche, T., Lauw, M. N., Eikelboom, J. W., Healey, J. S., Hart, R. G., Alings, M., Avezum, A., Diaz, R., Hohnloser, S. H., Lewis, B. S., Shestakovska, O., Wang, J., & Connolly, S. J.
Affiliations
  • Population Health Research Institute (CA)
  • Amphia Ziekenhuis (NL)
  • Goethe University Frankfurt (DE)
  • Technion – Israel Institute of Technology (IL)
Corresponding author
Vanassche, T.
Venue
European Heart Journal
Published
2014-09-03
Volume
36
Issue
5
Pages
281-288
ISSN
  • 0195-668X (ISSN-L)
  • 1522-9645
OpenAlex
W2163781421
Cited by
313
References
42
Citations by year
2026: 10 · 2025: 16 · 2024: 19 · 2023: 18 · 2022: 19 · 2021: 19 · 2020: 27 · 2019: 34 · 2018: 41 · 2017: 42 · 2016: 40 · 2015: 25 · 2014: 3
FWCI
25.13
Type
journal article
Language
en
Open access
closed
Locations
  • European Heart Journal (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Bristol-Myers Squibb
  • Pfizer
  • Sanofi
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Atrial Fibrillation Management and Outcomes
  • Health Sciences › Medicine › Epidemiology › Acute Ischemic Stroke Management
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Cardiovascular and Diving-Related Complications
Keywords
atrial fibrillation, ischemic stroke risk, paroxysmal atrial fibrillation, persistent atrial fibrillation, permanent atrial fibrillation, aspirin, non-anticoagulated patients, CHA2DS2-VASc score, systemic embolism, anticoagulation decision-making
MeSH terms
Aged, Aspirin, Atrial Fibrillation, Brain Ischemia, Double-Blind Method, Embolism, Female, Fibrinolytic Agents, Humans, Male, Risk Factors, Sex Distribution, Stroke, Kaplan-Meier Estimate

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