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The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
Published on: February 28, 2012
Prevalence and Factors Associated with Carotid Stenosis in Acute Ischemic Stroke Patients with Atrial Fibrillation
Dimitrios Sagris1, Eleni Korompoki2, Davide Strambo3
1Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece, disagris@uth.gr.
Insights
In patients with atrial fibrillation (AF) and acute ischemic stroke, 34.6% had carotid atherosclerosis, and 12.6% had significant stenosis or occlusion. Atherosclerosis in multiple arterial beds strongly predicted carotid stenosis.
Area of Science:
- Cardiology
- Neurology
- Vascular Medicine
Background:
- Atrial fibrillation (AF) is a common risk factor for ischemic stroke.
- Carotid atherosclerosis frequently coexists with AF in stroke patients.
- Understanding this association is crucial for stroke prevention and management.
Purpose of the Study:
- To determine the prevalence of carotid atherosclerosis in patients with AF and acute ischemic stroke.
- To identify factors associated with carotid atherosclerosis in this patient population.
Main Methods:
- Retrospective analysis of prospectively collected data from 10 stroke registries.
- Inclusion of consecutive patients with anterior ischemic stroke and AF who underwent carotid imaging.
- Categorization of carotid stenosis severity: no atherosclerosis, <50%, ≥50%, and occlusion.
Main Results:
- Carotid atherosclerosis was present in 34.6% of 2,955 patients.
- Significant stenosis (≥50%) or occlusion occurred in 12.6% of patients.
- Factors associated with stenosis included older age, prior stroke/TIA, peripheral artery disease, coronary artery disease, and statin use.
Conclusions:
- Carotid atherosclerosis is highly prevalent in acute ischemic stroke patients with AF.
- Significant carotid stenosis or occlusion affects a notable proportion of these patients.
- Atherosclerosis in multiple arterial beds is a key predictor, highlighting the importance of comprehensive vascular assessment.
Introduction:
Among stroke patients with atrial fibrillation (AF), it is not uncommon to identify carotid atherosclerosis. This study aimed to estimate the prevalence of, and factors associated with, carotid atherosclerosis among patients with AF and acute ischemic stroke.
Patients And Methods:
Prospectively collected data from consecutive patients with anterior ischemic stroke and AF who underwent carotid imaging from 10 stroke registries were categorized retrospectively according to the degree of stenosis in: no atherosclerosis, stenosis <50%, stenosis ≥50%, and occlusion. Logistic regression analysis was used to identify factors associated with ipsilateral carotid atherosclerosis.
Results:
Among 2,955 patients with ischemic stroke and AF, carotid atherosclerosis was evident in 1,022 (34.6%) patients, while carotid stenosis ≥50% and occlusion were identified in 204 (6.9%) and 168 (5.7%) patients, respectively. Ipsilateral carotid stenosis ≥50% or occlusion was associated with higher age (OR: 1.15, 95% CI: 1.01-1.32, per decade), previous ischemic stroke or transient ischemic attack (OR: 1.70, 95% CI: 1.29-2.25), peripheral artery disease (OR: 1.85, 95% CI: 1.23-2.78), coronary artery disease (OR: 1.53, 95% CI: 1.16-2.04), and statin treatment on admission (OR: 1.30, 95% CI: 1.01-1.67). Patients with lacunar stroke had a lower likelihood of stenosis ≥50% or occlusion (OR: 0.29, 95% CI: 0.13-0.68). Compared to the absence of atherosclerotic disease, atherosclerosis in one and two arterial beds was associated with the identification of ipsilateral carotid stenosis (OR: 1.49, 95% CI: 1.22-2.98 and OR: 3.18, 95% CI: 1.85-5.49, respectively).
Conclusion:
Among acute ischemic stroke patients with AF, 1 out of 3 had ipsilateral carotid atherosclerosis, and 1 out of 8 had ipsilateral carotid stenosis ≥50% or occlusion. Atherosclerosis in two arterial beds was the most important predictor for the identification of ipsilateral carotid stenosis. Among ischemic stroke patients with AF, carotid atherosclerosis is common, while carotid imaging should not be overlooked, especially in those with coronary or/and peripheral artery disease.
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