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Post-stroke cognitive decline: an update and perspectives for clinical research
M Brainin1, J Tuomilehto, W-D Heiss
1Department for Clinical Neurosciences and Preventive Medicine, Danube University Krems, Krems, Austria.
European Journal of Neurology
|December 11, 2014
Summary
Ischaemic stroke can lead to vascular dementia and cognitive decline, with a potential therapeutic window for intervention after stroke. Routine cognitive assessments are recommended for stroke patients to preserve brain function.
Area of Science:
- Neurology
- Neuroscience
- Public Health
Background:
- Stroke and dementia share a significant relationship, impacting public health.
- Ischaemic stroke is a known contributor to vascular dementia and can worsen existing cognitive impairment.
- Cognitive decline post-stroke may be immediate or delayed, presenting a therapeutic window.
Purpose of the Study:
- To review the incidence and prevalence of cognitive decline following ischaemic stroke.
- To explore factors predisposing to stroke, pre-stroke cognitive decline, and relevant imaging biomarkers.
- To discuss outcomes based on assessment timing and neuropsychological testing methods.
Main Methods:
- Literature review focusing on cognitive decline after ischaemic stroke.
- Analysis of predisposing stroke aetiologies and pre-stroke cognitive status.
- Examination of imaging factors and biomarkers associated with post-stroke cognitive impairment.
Main Results:
- Cognitive decline can manifest immediately or with a delay after ischaemic stroke.
- Both neurodegenerative and vascular mechanisms contribute to post-stroke cognitive decline.
- Assessment timing and neuropsychological test selection are crucial for evaluating outcomes.
Conclusions:
- A delay in cognitive decline post-stroke offers a therapeutic window for interventions.
- Routine cognitive assessments several weeks or months after stroke are recommended.
- Further research and intervention trials are needed to optimize post-stroke cognitive preservation.
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