Association of Atrial Fibrillation With Incidence of Extracranial Systemic Embolic Events: The ARIC Study

Background Atrial fibrillation (AF) increases the risk of stroke and extracranial systemic embolic events (SEEs), but little is known about the magnitude of the association of AF with SEE. Methods and Results This analysis included 14 941 participants of the ARIC (Atherosclerosis Risk in Communities...

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Main Authors: Mengyuan Shi, Lin Y. Chen, Wobo Bekwelem, Faye L. Norby, Elsayed Z. Soliman, Aniqa B. Alam, Alvaro Alonso
Format: Article
Language:English
Published: Wiley 2020-09-01
Series:Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Subjects:
Online Access:https://www.ahajournals.org/doi/10.1161/JAHA.120.016724
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author Mengyuan Shi
Lin Y. Chen
Wobo Bekwelem
Faye L. Norby
Elsayed Z. Soliman
Aniqa B. Alam
Alvaro Alonso
author_facet Mengyuan Shi
Lin Y. Chen
Wobo Bekwelem
Faye L. Norby
Elsayed Z. Soliman
Aniqa B. Alam
Alvaro Alonso
author_sort Mengyuan Shi
collection DOAJ
description Background Atrial fibrillation (AF) increases the risk of stroke and extracranial systemic embolic events (SEEs), but little is known about the magnitude of the association of AF with SEE. Methods and Results This analysis included 14 941 participants of the ARIC (Atherosclerosis Risk in Communities) study (mean age, 54.2±5.8, 55% women, 74% White) without AF at baseline (1987–1989) followed through 2017. AF was identified from study ECGs, hospital discharges, and death certificates, while SEEs were ascertained from hospital discharges. CHA2DS2‐VASc was calculated at the time of AF diagnosis. Cox regression was used to estimate associations of incident AF with SEE risk in the entire cohort, and between CHA2DS2‐VASc score and SEE risk in those with AF. Among eligible participants, 3114 participants developed AF and 270 had an SEE (59 events in AF). Incident AF was associated with increased risk of SEE (hazard ratio [HR], 3.58; 95% CI, 2.57–5.00), after adjusting for covariates. The association of incident AF with SEE was stronger in women (HR, 5.26; 95% CI, 3.28–8.44) than in men (HR, 2.68; 95% CI, 1.66–4.32). In those with AF, higher CHA2DS2‐VASc score was associated with increased SEE risk (HR per 1‐point increase, 1.24; 95% CI, 1.05–1.47). Conclusions AF is associated with more than a tripling of the risk of SEE, with a stronger association in women than in men. CHA2DS2‐VASc is associated with SEE risk in AF patients, highlighting the value of the score to predict adverse outcomes and guide treatment decisions in people with AF.
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spelling doaj.art-59081b99b9664f32b8e0f010cb58facc2024-04-02T11:31:39ZengWileyJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease2047-99802020-09-0191810.1161/JAHA.120.016724Association of Atrial Fibrillation With Incidence of Extracranial Systemic Embolic Events: The ARIC StudyMengyuan Shi0Lin Y. Chen1Wobo Bekwelem2Faye L. Norby3Elsayed Z. Soliman4Aniqa B. Alam5Alvaro Alonso6Department of Epidemiology Rollins School of Public Health Emory University Atlanta GACardiovascular Division University of Minnesota Medical School Minneapolis MNHeart and Lung Institute of Utah Salt Lake City UTDivision of Epidemiology and Community Health School of Public Health University of Minnesota Minneapolis MNEpidemiological Cardiology Research Center Department of Epidemiology and Prevention Wake Forest School of Medicine Winston‐Salem NCDepartment of Epidemiology Rollins School of Public Health Emory University Atlanta GADepartment of Epidemiology Rollins School of Public Health Emory University Atlanta GABackground Atrial fibrillation (AF) increases the risk of stroke and extracranial systemic embolic events (SEEs), but little is known about the magnitude of the association of AF with SEE. Methods and Results This analysis included 14 941 participants of the ARIC (Atherosclerosis Risk in Communities) study (mean age, 54.2±5.8, 55% women, 74% White) without AF at baseline (1987–1989) followed through 2017. AF was identified from study ECGs, hospital discharges, and death certificates, while SEEs were ascertained from hospital discharges. CHA2DS2‐VASc was calculated at the time of AF diagnosis. Cox regression was used to estimate associations of incident AF with SEE risk in the entire cohort, and between CHA2DS2‐VASc score and SEE risk in those with AF. Among eligible participants, 3114 participants developed AF and 270 had an SEE (59 events in AF). Incident AF was associated with increased risk of SEE (hazard ratio [HR], 3.58; 95% CI, 2.57–5.00), after adjusting for covariates. The association of incident AF with SEE was stronger in women (HR, 5.26; 95% CI, 3.28–8.44) than in men (HR, 2.68; 95% CI, 1.66–4.32). In those with AF, higher CHA2DS2‐VASc score was associated with increased SEE risk (HR per 1‐point increase, 1.24; 95% CI, 1.05–1.47). Conclusions AF is associated with more than a tripling of the risk of SEE, with a stronger association in women than in men. CHA2DS2‐VASc is associated with SEE risk in AF patients, highlighting the value of the score to predict adverse outcomes and guide treatment decisions in people with AF.https://www.ahajournals.org/doi/10.1161/JAHA.120.016724atrial fibrillationCHA2DS2‐VASc scoreextracranial systemic embolism
spellingShingle Mengyuan Shi
Lin Y. Chen
Wobo Bekwelem
Faye L. Norby
Elsayed Z. Soliman
Aniqa B. Alam
Alvaro Alonso
Association of Atrial Fibrillation With Incidence of Extracranial Systemic Embolic Events: The ARIC Study
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
atrial fibrillation
CHA2DS2‐VASc score
extracranial systemic embolism
title Association of Atrial Fibrillation With Incidence of Extracranial Systemic Embolic Events: The ARIC Study
title_full Association of Atrial Fibrillation With Incidence of Extracranial Systemic Embolic Events: The ARIC Study
title_fullStr Association of Atrial Fibrillation With Incidence of Extracranial Systemic Embolic Events: The ARIC Study
title_full_unstemmed Association of Atrial Fibrillation With Incidence of Extracranial Systemic Embolic Events: The ARIC Study
title_short Association of Atrial Fibrillation With Incidence of Extracranial Systemic Embolic Events: The ARIC Study
title_sort association of atrial fibrillation with incidence of extracranial systemic embolic events the aric study
topic atrial fibrillation
CHA2DS2‐VASc score
extracranial systemic embolism
url https://www.ahajournals.org/doi/10.1161/JAHA.120.016724
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