Related Experiment Video
Updated: May 23, 2026

Using Retinal Imaging to Study Dementia
Published on: November 6, 2017
Vascular dementia
1Department of Neurology, Ochsner Clinic Foundation, New Orleans, LA.
Insights
Cerebrovascular lesions cause many dementias, including multi-infarct dementia. Mixed dementia involves vascular and degenerative changes, with treatment focusing on risk factors and cholinesterase inhibitors.
Area of Science:
- Neurology
- Geriatrics
- Vascular Medicine
Background:
- Age-related cognitive dementia is frequently linked to cerebrovascular lesions.
- Embolic disease and cerebral vessel infarcts can lead to progressive cognitive decline and dementia.
- Diagnostic advancements reveal white matter changes without overt stroke, complicating dementia diagnosis.
Purpose of the Study:
- To review the role of cerebrovascular disease in cognitive impairment and dementia.
- To discuss the pathology and diagnosis of vascular and mixed dementia.
- To outline current treatment strategies for vascular and mixed dementia.
Main Methods:
- Review of existing literature on cerebrovascular disease and dementia.
- Analysis of diagnostic findings from MRI, PET, and transcranial Doppler scans.
- Synthesis of information on the overlap between vascular and degenerative brain diseases.
Main Results:
- Cerebrovascular lesions are a primary cause of age-related cognitive dementia.
- Multi-infarct dementia presents with stepwise cognitive deterioration.
- Mixed dementia, a combination of vascular and degenerative pathologies, is common, yet their interaction is not fully understood.
Conclusions:
- Effective management of vascular or mixed dementia requires controlling vascular risk factors.
- Cholinesterase inhibitors are a treatment option for these conditions.
- Further research is needed to elucidate the pathophysiology of combined vascular and degenerative brain changes.
Abstract:
Many cases of age-related cognitive dementia are caused by cerebrovascular lesions, and various vascular syndromes can lead to cognitive impairment and dementia. Repeated cortical infarcts due to embolic disease of the heart or major cerebral vessels can cause progressive deterioration towards dementia and incapacitation. In classic multi-infarct dementia, cognitive deterioration is stepwise rather than smoothly progressive. While diagnostic technologies have vastly improved and added to general knowledge of the pathology of cerebrovascular disease, MRI, PET, and transcranial Doppler scans have demonstrated that significant white matter change is possible without clinically recognized TIA or completed stroke. In addition, patients may have initial complaints that are not serious enough to produce changes on mental status examination. Many patients have mixed dementia, exhibiting aspects of both degenerative brain disease and clinical evidence of strokes or significant changes on MRI scan. The overlap between vascular and degenerative disease is significant, yet the exact interaction of the pathophysiology of the vascular lesions and the degenerative changes is not known. The treatment of vascular or mixed dementia involves control of the risk factors for continued vascular events and treatment with the cholinesterase inhibitors.
More Related Videos
04:29A Visual Approach for Inducing Dolichoectasia in Mice to Model Large Vessel-Mediated Cerebrovascular Dysfunction
Published on: May 17, 2024
05:12A Mouse Model for Vascular Cognitive Impairment and Dementia Based on Needle-guided Asymmetric Bilateral Common Carotid Artery Stenosis
Published on: November 22, 2024
Related Concept Videos
Dementia l: Introduction
Dementia
The progression of dementia is generally gradual.
Alzheimer Disease l: Introduction
Alzheimer's Disease: Overview
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ and tau...
Alzheimer Disease ll: Pathophysiology
Hemorrhagic Stroke ll: Pathophysiology