Vascular dementia: Difference between revisions

From WikiMD's Wellness Encyclopedia

No edit summary
 
CSV import
 
(3 intermediate revisions by the same user not shown)
Line 1: Line 1:
Vascular dementia, the second most common form of dementia in older adults after Alzheimer’s disease, and vascular cognitive impairment (VCI) result from injuries to vessels that supply blood to the brain, often after a stroke or series of strokes. The symptoms of vascular dementia can be similar to those of Alzheimer’s, and both conditions can occur at the same time (a condition called “mixed dementia”). Symptoms of vascular dementia and VCI can begin suddenly and worsen or improve over time.
{{SI}}
{{Infobox medical condition
| name            = Vascular dementia
| image          = [[File:BrainAtrophy(exvacuo).png|alt=CT scan of a brain with atrophy]]
| caption        = CT scan of a brain with atrophy
| field          = [[Neurology]]
| symptoms        = [[Cognitive impairment]], [[memory loss]], [[confusion]], [[difficulty concentrating]], [[mood changes]]
| onset          = Typically after age 65
| duration        = Long-term
| causes          = [[Cerebrovascular disease]], [[stroke]], [[small vessel disease]]
| risks          = [[Hypertension]], [[diabetes]], [[smoking]], [[high cholesterol]]
| diagnosis      = [[Neuroimaging]], [[cognitive testing]]
| differential    = [[Alzheimer's disease]], [[Lewy body dementia]], [[frontotemporal dementia]]
| treatment      = [[Blood pressure control]], [[cholesterol management]], [[antiplatelet therapy]], [[cognitive therapy]]
| prognosis      = Progressive decline
| frequency      = Second most common form of dementia
}}
{{Short description|Type of dementia caused by problems in blood supply to the brain}}


== Vascular Contributions to Cognitive Impairment and Dementia ==
'''Vascular dementia''' is a common form of [[dementia]] caused by an impaired supply of blood to the brain. It is the second most common type of dementia after [[Alzheimer's disease]].
Vascular contributions to cognitive impairment and dementia (VCID)cause significant changes to memory, thinking, and behavior. Cognition andbrain function can be significantly affected by the size, location, and numberof brain injuries. Vascular dementia and vascular cognitive impairment arise.
[[File:Fcvm-08-803169-g0001.jpg|MRI showing white matter changes|left|thumb]]
 
==Causes==
as a result of risk factors that similarly increase the risk for cerebrovasculardisease (stroke), including atrial fibrillation, hypertension, diabetes, andhigh cholesterol. Symptoms of VCID can begin suddenly and progressor subside during one’s lifetime. VCID can occur along with Alzheimer’sdisease. Persons with VCID almost always have abnormalities in thebrain on magnetic resonance imaging scans. These include evidence ofprior strokes, often small and asymptomatic, as well as diffuse changes inthe brain’s “white matter”—the connecting “wires” of the brain that arecritical for relaying messages between brain regions. Microscopic brainexamination shows thickening of blood vessel walls called arteriosclerosisand thinning or loss of components of the white matter.
Vascular dementia is primarily caused by conditions that block or reduce blood flow to various regions of the brain, depriving them of oxygen and nutrients. Common causes include [[stroke]], [[small vessel disease]], and [[cerebral amyloid angiopathy]].
 
==Symptoms==
== Forms of VCID include: ==
The symptoms of vascular dementia can vary depending on the part of the brain affected and the severity of the damage. Common symptoms include:
• Vascular dementia refers to progressive loss of memory and other cognitive functions caused by vascular injury or disease within thebrain. Symptoms of vascular dementia may sometimes be difficult todistinguish from Alzheimer’s disease. Problems with organization,attention, slowed thinking, and problem solving are all more prominentin VCID, while memory loss is more prominent in Alzheimer’s.
* [[Memory loss]]
 
* Difficulty with [[problem-solving]]
• Vascular cognitive impairment involves changes with language, attention, and the ability to think, reason, and remember that are noticeable but arenot significant enough to greatly impact daily life. These changes, causedby vascular injury or disease within the brain, progress slowly over time.  
* Slowed thinking
 
* [[Confusion]]
• Post-stroke dementia can develop months after a major stroke. Not everyone who has had a major stroke will develop vascular dementia, but therisk for dementia is significantly higher in someone who has had a stroke.
* Changes in mood or behavior
 
==Diagnosis==
• Multi-infarct dementia is the result of many small strokes (infarcts) and mini-strokes. Language or other functions may be impaired, dependingon the region of the brain that is affected. The risk for dementia is significantly higher in someone whohas had a stroke. Dementia is morelikely when strokes affect both sidesof the brain. Even strokes that don’tshow any noticeable symptoms canincrease the risk of dementia.
Diagnosis of vascular dementia involves a combination of medical history, physical examination, and imaging tests such as [[MRI]] or [[CT scan]] to identify changes in the brain's structure.  
 
==Treatment==
• Cerebral autosomal dominant arteriopathy with subcorticalinfarcts and leukoencephalopathy(CADASIL) is an extremely rare inherited disorder caused by athickening of the walls of small- and medium-sized blood vessels,which reduces the flow of blood to the brain. CADASIL is associatedwith multi-infarct dementia, stroke, and other disorders. The firstsymptoms can appear in people between ages 20 and 40. CADASILmay have symptoms that can be confused with multiple sclerosis.Many people with CADASIL are undiagnosed.
While there is no cure for vascular dementia, treatment focuses on managing the underlying conditions and symptoms. This may include:
 
* [[Medications]] to control blood pressure, cholesterol, and diabetes
• Subcortical vascular dementia, previously called Binswanger’s disease, involves extensive microscopic damage to the small blood vessels andnerve fibers that make up white matter. Some consider it an aggressiveform of multi-infarct dementia. Cognitive changes include problemswith short-term memory, organization, attention, decision making, andbehavior. Symptoms tend to begin after age 60, and they progress in astepwise manner. People with subcortical vascular disease often havehigh blood pressure, a history of stroke, or evidence of disease of thelarge blood vessels in the neck or heart valves.  
* [[Lifestyle changes]] such as a healthy diet and regular exercise
 
* [[Cognitive therapy]]
• Cerebral amyloid angiopathy is a buildup of amyloid plaques in the walls of blood vessels in the brain. It is generally diagnosed when multiple tinybleeds in the brain are discovered using magnetic resonance imaging.
==Prevention==
Preventive measures for vascular dementia include maintaining a healthy lifestyle, controlling [[cardiovascular risk factors]], and regular medical check-ups.
==Prognosis==
The progression of vascular dementia can vary widely among individuals. Some may experience a gradual decline, while others may have a more sudden onset of symptoms following a stroke or other vascular event.
==See also==
* [[Dementia]]
* [[Alzheimer's disease]]
* [[Stroke]]
{{stub}}
{{stub}}
{{Mental and behavioural disorders|selected = neurological}}
{{Mental and behavioural disorders|selected = neurological}}
{{CNS diseases of the nervous system}}
{{CNS diseases of the nervous system}}
[[Category:Cognitive disorders]]
[[Category:Cognitive disorders]]
[[Category:Dementia]]
[[Category:Dementia]]
[[Category:Learning disabilities]]
[[Category:Learning disabilities]]
[[Category:Mental disorders due to brain damage]]
[[Category:Mental disorders due to brain damage]]
[[Category:Neurological disorders]]

Latest revision as of 18:20, 12 April 2025

Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD's medical weight loss NYC, sleep center NYC
Philadelphia medical weight loss and Philadelphia sleep clinics

Vascular dementia
CT scan of a brain with atrophy
Synonyms N/A
Pronounce N/A
Specialty N/A
Symptoms Cognitive impairment, memory loss, confusion, difficulty concentrating, mood changes
Complications N/A
Onset Typically after age 65
Duration Long-term
Types N/A
Causes Cerebrovascular disease, stroke, small vessel disease
Risks Hypertension, diabetes, smoking, high cholesterol
Diagnosis Neuroimaging, cognitive testing
Differential diagnosis Alzheimer's disease, Lewy body dementia, frontotemporal dementia
Prevention N/A
Treatment Blood pressure control, cholesterol management, antiplatelet therapy, cognitive therapy
Medication N/A
Prognosis Progressive decline
Frequency Second most common form of dementia
Deaths N/A


Type of dementia caused by problems in blood supply to the brain


Vascular dementia is a common form of dementia caused by an impaired supply of blood to the brain. It is the second most common type of dementia after Alzheimer's disease.

MRI showing white matter changes

Causes[edit]

Vascular dementia is primarily caused by conditions that block or reduce blood flow to various regions of the brain, depriving them of oxygen and nutrients. Common causes include stroke, small vessel disease, and cerebral amyloid angiopathy.

Symptoms[edit]

The symptoms of vascular dementia can vary depending on the part of the brain affected and the severity of the damage. Common symptoms include:

Diagnosis[edit]

Diagnosis of vascular dementia involves a combination of medical history, physical examination, and imaging tests such as MRI or CT scan to identify changes in the brain's structure.

Treatment[edit]

While there is no cure for vascular dementia, treatment focuses on managing the underlying conditions and symptoms. This may include:

Prevention[edit]

Preventive measures for vascular dementia include maintaining a healthy lifestyle, controlling cardiovascular risk factors, and regular medical check-ups.

Prognosis[edit]

The progression of vascular dementia can vary widely among individuals. Some may experience a gradual decline, while others may have a more sudden onset of symptoms following a stroke or other vascular event.

See also[edit]

This article is a medical stub. You can help WikiMD by expanding it!
PubMed
Wikipedia