Low carotid endothelial shear stress associated with cerebral small vessel disease in an older population: A subgroup analysis of a population-based prospective cohort study

Yali Chen, Huapeng Yu, Jizheng Zhu, Hua Zhang, Yingxin Zhao, Yuanli Dong, Yi Cui, Gary Gong, Qiang Chai, Yuqi Guo, Zhendong Liu

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Background and aims: The association between carotid wall shear stress (WSS) and cerebral small vessel disease has yet to be fully elucidated. The major purpose of this study was to investigate this association in older subjects. Methods: Common carotid artery WSS, endothelial function, white matter hyperintensities (WMH), lacunes, and microbleeds were assessed in 1396 older adults. Participants were followed-up for an average of 69.7 months. Results: Mean (M) and peak (P) WSS and changes in endothelial function were independently associated with changes in WMH volume and fraction, lacune counts, and microbleed counts (all p < 0.05). The risks of new-incident Fazekas scale ≥2 [hazard ratio (HR) with 95% confidence interval (CI): 2.141 (1.469–3.119), p = 0.005 and 1.731 (1.197–2.505), p = 0.004, respectively], lacunes [HR (95% CI): 2.034 (1.369–3.022), p < 0.001 and 1.693 (1.151–2.490), p = 0.003, respectively], and microbleeds [HR (95% CI): 2.311 (1.509–3.541), p < 0.001 and 2.208 (1.299–3.751), p < 0.001, respectively] were significantly higher in the lowest quartile group than in the higher quartile group, as classified by either MWSS or PWSS, after adjustment for confounders. Conclusions: Low carotid WSS is an independent risk factor for the progression of cerebral small vessel disease in older adults.

Original languageEnglish (US)
Pages (from-to)42-50
Number of pages9
JournalAtherosclerosis
Volume288
DOIs
StatePublished - Sep 2019

Keywords

  • Cerebral small vessel disease
  • Endothelial function
  • Hemodynamic
  • Shear stress

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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