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Updated: May 27, 2026

Using Retinal Imaging to Study Dementia
Published on: November 6, 2017
Vascular dementia
1Department of Neurology, Chungnam National University College of Medicine, Daejeon, Korea.
Insights
Vascular dementia (VaD), a major cause of cognitive impairment, presents diverse symptoms and mechanisms. Prevention through managing cardiovascular risks offers a promising approach to mitigate its impact.
Area of Science:
- Neurology
- Geriatrics
- Vascular Medicine
Background:
- Cerebrovascular disease is the second leading cause of cognitive impairment in the elderly, often co-occurring with Alzheimer's disease (AD).
- Vascular dementia (VaD) is a heterogeneous condition with varied clinical presentations and underlying pathological mechanisms.
- VaD can arise from large vessel pathologies causing cortical infarctions or small artery diseases leading to subcortical ischemic changes like leukoaraiosis or lacunar infarction.
Purpose of the Study:
- To elucidate the heterogeneous nature of vascular dementia (VaD).
- To describe the clinical phenotypes and pathogenetic mechanisms of VaD.
- To highlight the relationship between cerebrovascular disease and cognitive impairment in the elderly.
Main Methods:
- Review of literature on cerebrovascular disease and vascular dementia.
- Analysis of clinical symptoms and signs related to stroke lesion location and size.
- Comparison of VaD characteristics with Alzheimer's disease (AD).
Main Results:
- VaD presents with variable symptoms depending on stroke location and size; dysexecutive function is a common feature.
- VaD exhibits a slightly higher mortality rate and slower progression compared to AD.
- Potential for prevention exists through rigorous management of cardiovascular disease risk factors.
Conclusions:
- Vascular dementia is a complex condition resulting from diverse cerebrovascular pathologies.
- Effective management of cardiovascular risk factors is crucial for VaD prevention.
- Cholinesterase inhibitors may offer modest symptomatic benefits for VaD patients.
Abstract:
Cerebrovascular disease is the second leading cause of cognitive impairment in the elderly, either alone or in combination with Alzheimer's disease (AD). Vascular dementia (VaD) is heterogeneous in terms of both clinical phenotype and pathogenetic mechanisms. It may result from multiple cortical infarctions due to cerebral large vessel pathologies or to subcortical ischemic changes such as leukoaraiosis or lacunar infarction due to cerebral small artery disease. Clinical symptoms and signs vary depending on the location and size of the stroke lesion, and no single neuropsychological profile characteristic of VaD has been defined, although dysexecutive function is common. A slightly higher mortality rate and slower progression are reported in VaD compared with AD. VaD is potentially preventable by rigorous identification and treatment of cardiovascular disease risk factors, and modest symptomatic improvement with cholinesterase inhibitors has been reported.
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