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Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions
07:30

Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions

Published on: April 23, 2021

Vascular cognitive impairment

Ola A Selnes1, Harry V Vinters

  • 1Cognitive Neuroscience Division, Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205-1910, USA. oselnes@jhmi.edu

Nature Clinical Practice. Neurology
|September 23, 2006
PubMed

Insights

Vascular disease often causes cognitive impairment. Distinguishing pure vascular dementia from Alzheimer's disease (AD) and mixed conditions is challenging due to evolving criteria and complex pathologies.

Area of Science:

  • Neurology
  • Neuroscience
  • Pathology

Background:

  • Cognitive impairment frequently co-occurs with cerebrovascular disease.
  • Defining and quantifying vascular cognitive impairment is complicated by evolving diagnostic criteria.
  • Dementia affects up to one-third of elderly stroke patients, with some cases being Alzheimer's disease (AD) rather than pure vascular dementia.

Purpose of the Study:

  • To review the challenges in determining the frequency of cognitive impairment due to cerebrovascular disease.
  • To discuss the relationship between Alzheimer's disease (AD) and cerebrovascular disease.
  • To explore the role of neuropathologic features in vascular cognitive impairment.

Main Methods:

  • Literature review of epidemiological studies and autopsy series.
  • Analysis of clinical and neuropathological findings in vascular cognitive impairment.
  • Discussion of diagnostic challenges and evolving criteria.

Main Results:

  • Pure vascular dementia is uncommon in autopsy studies.
  • Mixed etiology of AD and cerebrovascular disease increases with age.
  • Subcortical small-vessel disease is linked to cognitive impairment, but MRI findings' clinical significance varies.
  • Cerebral microangiopathies are associated with dementia in various forms.

Conclusions:

  • Accurate diagnosis of vascular cognitive impairment is hindered by complex etiologies and diagnostic criteria.
  • Further research is needed to clarify the interplay between AD, cerebrovascular disease, and cognitive decline.
  • Understanding neuropathological features is crucial for diagnosing and managing vascular cognitive impairment.

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