Impact of carotid atherosclerosis in cha2ds2-vasc-based risk score on predicting ischemic stroke in patients with atrial fibrillation

Dong Hyuk Cho, Jong Il Choi, Jimi Choi, Yun Gi Kim, Suk Kyu Oh, Hyungdon Kook, Kwang No Lee, Jaemin Shim, Seong-Mi Park, Wan Joo Shim, Young Hoon Kim

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1 Citation (Scopus)

Abstract

Background/Aims: Vascular disease is an established risk factor for stroke in patients with atrial fibrillation (AF), which is included in CHA2DS2-VASc score. However, the role of carotid atherosclerosis remains to be determined. Methods: Three hundred-ten patients with AF who underwent carotid sonogra-phy were enrolled. Results: During a median follow-up of 31 months, 18 events (5.8%) of stroke were identified. Patients with stroke had higher carotid intima-media thickness (CIMT) (1.16 ± 0.33 mm vs. 0.98 ± 0.25 mm, p = 0.017). CIMT was significantly increased according to the CHA2DS2-VASc score (p < 0.001) and it was correlated with left ventricular mass index and early diastolic mitral annular velocity (e’), a ratio of early transmitral flow velocity to e’ (E/e’) and pulmonary artery systolic pressure (all p < 0.05). Cox regression using multivariate models showed that carotid plaque was associated with the risk of stroke (hazard ratio, 3.748; 95% confidence interval [CI], 1.107 to 12.688; p = 0.034). C-statistics increased from 0.648 (95% CI, 0.538 to 0.757) to 0.716 (95% CI, 0.628 to 0.804) in the CHA2DS2-VASc score model after the addition of CIMT and carotid plaque as a vascular component (p = 0.013). Conclusions: Increased CIMT and presence of carotid plaque are associated with a high risk of ischemic stroke, and CIMT is related to myocardial remodeling and diastolic dysfunction, suggesting that carotid atherosclerosis can improve risk prediction of stroke in patients with AF, when included under vascular disease in the CHA2DS2-VASc scoring system.

Original languageEnglish
Pages (from-to)342-351
Number of pages10
JournalKorean Journal of Internal Medicine
Volume36
Issue number2
DOIs
Publication statusPublished - 2021

Keywords

  • Atrial fibrillation
  • Carotid stenosis Carotid intima media thickness
  • Risk assessment
  • Stroke

ASJC Scopus subject areas

  • Internal Medicine

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