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Rates, Risks, and Routes to Reduce Vascular Dementia: A UK-Wide Multicentre Prospective Observational Cohort Study of
Philip M Bath1,2, Ellen V Backhouse3,4, Rosalind Brown3,4
1Stroke Trials Unit, Mental Health and Clinical Neuroscience, University of Nottingham, Nottingham, UK, philip.bath@nottingham.ac.uk.
Cerebrovascular Diseases Extra
|June 29, 2026
Summary
Stroke significantly impacts cognition, leading to vascular dementia. This study reveals a substantial, often overlooked, cognitive burden following stroke, even in the early weeks post-event.
Area of Science:
- Neurology
- Cognitive Science
- Public Health
Background:
- Stroke frequently leads to vascular cognitive impairment and dementia.
- Understanding post-stroke cognitive decline remains a significant challenge in clinical practice.
Purpose of the Study:
- To investigate the rates, risks, and potential reduction strategies for vascular dementia (R4VaD).
- To assess cognitive function, mood, and quality of life in stroke survivors.
- To identify predictors of cognitive impairment after stroke.
Main Methods:
- An observational cohort study (R4VaD) involving patients with stroke or transient ischemic attack (TIA).
- Recruitment within six weeks of stroke from UK hospitals.
- Primary outcome: dementia rate and severity at two years, compared between mild and severe stroke groups based on NIHSS scores.
Main Results:
- 2441 patients were recruited, with 99.6% having a qualifying stroke or TIA event.
- At baseline (within 6 weeks), 53.5% had normal cognition, while 46.5% exhibited varying degrees of cognitive impairment.
- Patients with more severe strokes were recruited later, less likely to have capacity, and more prone to intracerebral hemorrhage.
Conclusions:
- Baseline data from the R4VaD study underscore the significant cognitive burden associated with stroke.
- The findings highlight an under-appreciated cognitive impact of stroke, evident even in the early post-stroke period.
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