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Updated: Jun 21, 2026

Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions
Published on: April 23, 2021
Cognitive impairment risk: white matter hyperintensity progression matters
Lisa C Silbert1, Diane B Howieson, Hiroko Dodge
1Layton Aging and Alzheimer's Disease Center, Department of Neurology, CR-131, Oregon Health & Science University, 3181 S.W. Sam Jackson Park Rd., Portland, OR 97239, USA. silbertl@ohsu.edu
White matter hyperintensity (WMH) progression, not baseline volume, predicts cognitive decline in older adults. Monitoring WMH changes is crucial for identifying individuals at risk of persistent cognitive impairment (PCI).
Area of Science:
- Neurology
- Gerontology
- Radiology
Background:
- White matter hyperintensities (WMH) are common in aging brains.
- The predictive value of WMH progression versus baseline volume for cognitive decline is not fully understood.
Purpose of the Study:
- To compare the efficacy of WMH progression rate versus baseline WMH volume in predicting cognitive impairment risk among healthy elderly individuals.
Main Methods:
- Longitudinal study of 98 cognitively intact elderly subjects with regular MRI scans and cognitive assessments.
- Cox proportional hazards survival analyses were employed to evaluate cognitive impairment risk.
Main Results:
- Increased progression of total and periventricular (PV) WMH volumes significantly predicted higher risk of persistent cognitive impairment (PCI).
- Baseline WMH volumes did not show a significant association with PCI risk.
- Each 1 mL/y increase in PV WMH volume correlated with a 94% increased risk of PCI.
Conclusions:
- WMH progression rate is a superior predictor of PCI compared to baseline WMH burden.
- PV WMH progression is linked to the development of PCI, a potential precursor to dementia.
- Further research is needed to identify interventions that reduce WMH accumulation and preserve cognitive health in the elderly.
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