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Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions
Published on: April 23, 2021
Cerebral microbleeds are associated with worse cognitive function: the Rotterdam Scan Study
M M F Poels1, M A Ikram, A van der Lugt
1Department of Epidemiology, Erasmus MC University Medical Center, Rotterdam, The Netherlands.
Neurology
|January 21, 2012
Summary
Numerous cerebral microbleeds, particularly in the lobar region, are linked to poorer cognitive function, even after accounting for vascular disease. This suggests microbleeds independently impact cognitive impairment.
Area of Science:
- Neurology
- Neuroimaging
- Geriatrics
Background:
- Cerebral microbleeds are common in older adults and may indicate vascular issues.
- Their impact on cognitive function remains unclear.
Purpose of the Study:
- To investigate the association between cerebral microbleeds and cognitive performance in various domains.
- To determine if microbleed location influences this association.
Main Methods:
- Studied 3,979 individuals without dementia using neuropsychological tests and Mini-Mental State Examination (MMSE).
- Assessed global cognition, memory, processing speed, executive function, and motor speed.
- Utilized linear regression, adjusting for vascular risk factors and small vessel disease markers, and stratified by microbleed location.
Main Results:
- More microbleeds correlated with lower MMSE scores and slower information processing and motor speed.
- Five or more microbleeds were linked to worse performance in all domains except memory.
- Associations were strongest for strictly lobar microbleeds and diminished for deep or infratentorial ones after adjustments.
Conclusions:
- Numerous microbleeds, especially in lobar regions, are associated with cognitive decline, independent of vascular risk factors.
- Microbleed-associated vasculopathy may play a significant role in cognitive impairment.
