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Diagnostic criteria for vascular dementia
1Department of Neurology, Academisch Ziekenhuis VU, Amsterdam, The Netherlands. p.scheltens@azvu.nl
Insights
Evaluating diagnostic criteria for vascular dementia (VaD), this review identifies the California and NINDS-AIREN criteria as most effective. Further research is needed to improve reliability, especially for differentiating mixed dementia types.
Area of Science:
- Neurology
- Neuroscience
- Geriatrics
Background:
- Vascular dementia (VaD) is a clinical syndrome of dementia linked to cerebrovascular disease.
- Accurate diagnosis is crucial but challenging due to heterogeneous causes and overlapping pathologies.
- Existing diagnostic criteria vary in their ability to define dementia, vascular disease, and their relationship.
Purpose of the Study:
- To review and evaluate current diagnostic criteria for vascular dementia.
- To assess the adequacy of these criteria in defining dementia, vascular pathology, and their causal link.
- To identify the most reliable criteria for clinical and research use.
Main Methods:
- Systematic review of established diagnostic criteria for vascular dementia.
- Analysis of criteria based on their inclusion of diagnostic elements for dementia, cerebrovascular disease, and the relationship between them.
- Evaluation of criteria's operational definitions and recommendations for neuroimaging (CT/MRI).
Main Results:
- The criteria from the State of California Alzheimer's Disease Diagnostic and Treatment Centers and NINDS-AIREN were found to be the most comprehensive.
- These selected criteria offer sufficient operational definitions for dementia in vascular disease patients.
- They also provide a framework for diagnosing cerebrovascular disease and establishing its link to dementia.
Conclusions:
- The California and NINDS-AIREN criteria are recommended for diagnosing vascular dementia.
- Further investigation is required for interpreting neuroimaging in mixed vascular and degenerative dementia.
- Improved diagnostic reliability for VaD is anticipated with the development of specific tests for differentiating degenerative diseases.
Abstract:
The term vascular dementia implies the presence of a clinical syndrome (dementia) caused by, or at least assumed to be caused by, a specific disorder (cerebrovascular disease). In this review, the various sets of criteria used to define vascular dementia are outlined. The various sets of criteria are judged whether they contain criteria for both dementia and vascular disease as well as for the relationship between the two. We conclude that only the criteria of the State of California Alzheimer's Disease Diagnostic and Treatment Centers and of NINDS-AIREN provide sufficient operational criteria for dementia suitable for use in patients with vascular disease as well as for the diagnosis of cerebrovascular disease and for the establishment of a relationship between dementia and vascular disease. The latter criteria include also specific recommendations to the use of CT and MRI. However, the interpretation of the neuroimaging findings in the context of mixed vascular and degenerative dementia demands further study. Given the heterogeneous pathophysiology and pathology of vascular dementia and the modest reliability of the criteria, it seems plausible that the diagnosis of vascular dementia will become more reliable when specific diagnostic tests for the various degenerative diseases, from which vascular dementia has to be differentiated, become available.