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.

Neuroepidemiology
|July 9, 2024
PubMed

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.
Abstract

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