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Published on: May 22, 2019
[Risk factors and prediction of poststroke dementia]
Insights
Risk factors for poststroke dementia vary by age, including coronary heart disease, diabetes mellitus, overweight, and hyperlipidemia. Neuroimaging reveals specific brain lesion locations linked to dementia development.
Area of Science:
- Neurology
- Gerontology
- Cardiology
Context:
- Poststroke dementia poses a significant health challenge.
- Understanding risk factors is crucial for prevention and management.
- Age-related variations in risk factors require tailored approaches.
Purpose:
- To identify and analyze risk factors for poststroke dementia across different age groups.
- To investigate neuroimaging correlates of dementia in poststroke patients with cognitive impairment.
- To develop a predictive model for poststroke dementia.
Summary:
- This study examined 128 patients with poststroke dementia (aged 50-79) and 125 controls with moderate cognitive impairment.
- Significant risk factors included coronary heart disease (50-59), and diabetes mellitus, overweight, and hyperlipidemia (60-79).
- Neuroimaging linked dementia to focal lesions in the left hemisphere, frontal/temporal-occipital areas, white matter, thalamus, basal ganglia, and subcortical leukoareosis.
Impact:
- Identifies age-specific risk factors for poststroke dementia.
- Highlights the role of specific brain lesion locations in dementia development.
- Provides a foundation for an individual prediction model for poststroke dementia.
Abstract:
To study the status of risk factors for poststroke dementia, 128 patients, aged 50-79 years, with poststroke dementia have been examined. A control group included 125 patients with moderate cognitive impairment after stroke. Coronary heart disease was a significant factor at the age from 50 to 59; coronary heart disease, diabetes mellitus, overweight and hyperlipidemia were significant risk factors at the age from 60 to 69 and diabetes mellitus, overweight and hyperlipidemia were significant risk factors at the age from 70 to 79. The neuroimaging study revealed that the development of dementia in patients with moderate cognitive impairment was related to the localization of focal poststroke changes in the left hemisphere, frontal and temporal-occipital areas, frontal white matter, thalamus, basal ganglia as well as to the prevalence and severity of subcortical leukoareosis in the frontal areas, basal ganglia and thalamus. An individual prediction model for poststroke dementia in patients with moderate cognitive impairment has been worked out.
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