Definitely a question for your doctor. How does knowing this prevent your next stroke?
http://www.docguide.com/large-vessel-correlates-cerebral-small-vessel-disease
OBJECTIVE: Our aim was to investigate the relationship of carotid
structure and function with MRI markers of cerebral ischemic
small-vessel disease. METHODS: The study comprised 1,800 participants
(aged 72.5 ± 4.1 years, 59.4% women) from the 3C-Dijon Study, a
population-based, prospective cohort study, who had undergone
quantitative brain MRI and carotid ultrasound. We used multivariable
logistic and linear regression adjusted for age, sex, and vascular risk
factors. RESULTS: Presence of carotid plaque and increasing carotid
lumen diameter (but not common carotid artery intima-media thickness)
were associated with higher prevalence of lacunar infarcts: odds ratio
(OR) = 1.60 (95% confidence interval [CI]: 1.09-2.35), p = 0.02 and OR =
1.24 (95% CI: 1.02-1.50), p = 0.03 (by SD increase). Carotid plaque was
also associated with large white matter hyperintensity volume (WMHV)
(age-specific top quartile of WMHV distribution): OR = 1.32 (95% CI:
1.04-1.67), p = 0.02, independently of vascular risk factors. Increasing
Young elastic modulus and higher circumferential wall stress,
reflecting augmented carotid stiffness, were associated with increasing
WMHV (effect estimate [β]± standard error: 0.0003 ± 0.0001, p = 0.024; β
± standard error: 0.005 ± 0.002, p = 0.008). Large WMHV was also
associated with increasing Young elastic modulus (OR = 1.22 [95% CI:
1.04-1.42], p = 0.01) and with decreasing distensibility coefficient (OR
= 0.83 [95% CI: 0.69-0.99], p = 0.04), independently of vascular risk
factors. Associations of carotid lumen diameter with lacunar infarcts
and of carotid stiffness markers with WMHV were independent of carotid
plaque. CONCLUSIONS: In addition to and independently of carotid plaque,
increasing carotid lumen diameter and markers of carotid stiffness were
associated with increasing prevalence of lacunar infarcts and
increasing WMHV, respectively.
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