Related Experiment Video
Updated: May 14, 2026
09:17
Using Retinal Imaging to Study Dementia
Published on: November 6, 2017
[Vascular dementia].
Marie-Germaine Bousser1, Hugues Chabriat
1Neurologie Hôpital Lariboisière APHP, Université Paris Diderot, 2 rue Ambroise Paré-75010 Paris. mg.bousser@lrb.aphp.fr
Bulletin De L'Academie Nationale De Medecine
|February 21, 2013
Summary
Preventing dementia, particularly vascular dementia, is crucial due to aging populations. Early treatment of vascular risk factors like hypertension is key to preventing strokes and subsequent cognitive decline.
Area of Science:
- Neurology
- Geriatrics
- Public Health
Context:
- Dementia prevalence is rising globally, especially in aging populations.
- Vascular dementia, a significant subtype, results from cerebrovascular damage.
- Distinguishing vascular dementia from Alzheimer's disease is complex, with mixed pathologies common.
Purpose:
- To highlight the growing challenge of dementia, focusing on vascular dementia.
- To discuss the diverse causes and clinical presentation of vascular dementia.
- To emphasize the overlap between vascular and Alzheimer's disease pathologies.
Summary:
- Vascular dementia involves cognitive decline from vascular brain lesions, encompassing various conditions like stroke and small artery disease.
- While classically abrupt and subcortical, vascular dementia often presents with mixed pathologies, synergizing with Alzheimer's disease.
- Effective dementia prevention hinges on mitigating vascular risk factors and treating hypertension to prevent strokes.
Impact:
- Underscores the importance of vascular risk factor management in dementia prevention strategies.
- Suggests that interventions targeting vascular health may broadly reduce dementia incidence.
- Informs clinical practice and public health initiatives aimed at combating the dementia epidemic.
More Related Videos
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
04:29A Visual Approach for Inducing Dolichoectasia in Mice to Model Large Vessel-Mediated Cerebrovascular Dysfunction
Published on: May 17, 2024
Related Concept Videos
01:22Dementia l: Introduction
Dementia is an acquired, progressive syndrome characterized by a decline in multiple cognitive domains severe enough to impair daily functioning and reduce independence. Although memory loss is a central feature, the diagnosis requires additional deficits involving language, executive function, visuospatial skills, judgment, calculation, or abstract reasoning. These cognitive impairments reflect underlying neurodegenerative or vascular processes that gradually disrupt neuronal networks...
01:16Vascular Spasm
The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last for...
01:29Hemorrhagic Stroke ll: Pathophysiology
A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...
01:17Hemorrhagic Stroke l: Introduction
A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
01:30Dementia
Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual.
The progression of dementia is generally gradual.
01:23Alzheimer Disease ll: Pathophysiology
Alzheimer disease involves structural changes in the brain that begin long before symptoms appear. The most distinctive features are extracellular neuritic plaques and intracellular neurofibrillary tangles.Neuritic plaques form in the cerebral cortex and around blood vessels. These plaques contain a dense core of beta-amyloid (Aβ)—a toxic protein fragment that clumps outside neurons. The core is surrounded by damaged neuronal extensions, as well as reactive astrocytes and microglia. Abnormal...