1. Distinct profiles of cognitive impairment associated with different silent cerebrovascular lesions in hypertensive elderly Chinese.
- Author
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Zhang M, Xie B, Gao J, Mak HKF, Kwong ASK, Chan DCP, and Cheung RTF
- Subjects
- Aged, Aged, 80 and over, Cerebrovascular Disorders physiopathology, China epidemiology, Cognitive Dysfunction physiopathology, Cohort Studies, Cross-Sectional Studies, Female, Humans, Hypertension physiopathology, Magnetic Resonance Imaging trends, Male, Prospective Studies, Cerebrovascular Disorders diagnostic imaging, Cerebrovascular Disorders epidemiology, Cognitive Dysfunction diagnostic imaging, Cognitive Dysfunction epidemiology, Hypertension diagnostic imaging, Hypertension epidemiology
- Abstract
Background/objectives: Silent cerebrovascular lesions (SCLs) and their underlying pathology are now recognized as important causes of cognitive impairment in the elderly. However, the distinct profile of cognitive deficits associated with each type of SCLs remains unclear., Methods: Of 497 otherwise healthy hypertensive elderly Chinese, 398 participants (mean age 72.0, ranging from 65 to 99, SD = 5.1) successfully completed a battery of structured neuropsychological tests and a multi-sequence 3 T MRI scanning. SCLs were rated independently. Correlations between each MRI marker and cognitive function were assessed using a series of linear regression models., Results: Strictly lobar cerebral microbleeds were linked to impaired language function (B = -0.231, p < 0.05). Silent lacunes were associated with poor executive function, but the association disappeared after additional adjustment for white matter hyperintensities. White matter hyperintensities (especially periventricular hyperintensities) were associated with poor executive function (B = -0.126, p < 0.05) and slower information processing speed (B = -0.149, p < 0.05)., Conclusion: Different SCLs were associated with different patterns of cognitive deficits, indicating that different SCLs may have distinct impacts on cognitive performance., (Copyright © 2019 Elsevier B.V. All rights reserved.)
- Published
- 2019
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