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Towards defining the neuropathological substrates of vascular dementia

Raj N Kalaria1, Rose Anne Kenny, Clive G Ballard

  • 1Institute for Ageing and Health, Newcastle General Hospital, Westgate Road, Newcastle-upon-Tyne NE4 6BE, UK. r.n.kalaria@ncl.ac.uk

Journal of the Neurological Sciences
|November 13, 2004
PubMed

Insights

Vascular dementia (VaD) arises from cerebrovascular disease, often linked to atherosclerosis and small vessel disease causing brain infarcts. Clearer diagnostic criteria are crucial for effective prevention, treatment, and clinical trials.

Area of Science:

  • Neurology
  • Neuroscience
  • Pathology

Background:

  • Cerebrovascular disease is a heterogeneous condition.
  • It can lead to vascular cognitive impairment or vascular dementia (VaD).
  • Neuropathological substrates of VaD require better definition.

Purpose of the Study:

  • To define the neuropathological substrates of vascular dementia (VaD).
  • To highlight the need for consensus criteria for VaD diagnosis.

Main Methods:

  • Review of neuropathological findings in VaD.
  • Analysis of common causes of brain infarction (atherosclerosis, small vessel disease).

Main Results:

  • Lacunar infarcts and microinfarcts are common in subcortical ischaemic VaD.
  • White matter changes are widespread but their contribution to impairment is unclear.
  • Other pathologies like hippocampal injury and Alzheimer's lesions can influence dementia course.

Conclusions:

  • Consensus criteria for VaD are needed for improved diagnosis, prevention, and treatment.
  • Clear criteria are essential for selective recruitment in clinical trials.

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