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Home > About Alzheimer's and Dementia > Understanding Alzheimer's Disease > Vascular Dementia

Vascular Dementia

Vascular dementia is an umbrella term that describes impairments in cognitive function caused by problems in the blood vessels that feed the brain.

In some cases, a blood vessel may be completely blocked, causing a stroke. Some strokes result in dementia while others don't. It depends on the severity of the stroke and the portion of the brain that's affected. Vascular dementia also can occur when blood vessels in the brain narrow, reducing the amount of blood flow to those sections of the brain.

The prevalence of vascular dementia ranges from 1 percent to 4 percent in people over the age of 65. The risk increases dramatically with age.

Other types of Dementias

 Creutzfeldt-Jakob Disease (CJD)

 Dementia with Lewy Bodies

 Frontotemporal Dementia

 Huntington's Disease

 Normal Pressure Hydrocephalus

 Parkinson's Disease

 Wernicke-Korsakoff Syndromep

 
 
 

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This project was supported, in part, by a grant, number 90AZ2791, from the Administration on Aging, Department of Health and Human Services, Washington, D.C. 20201. Grantees undertaking projects under government sponsorship are encouraged to express freely their findings and conclusions. Points of view or opinions do not, therefore, necessarily represent official Administration on Aging policy.