Review maps behavioral and emotional symptoms across vascular cognitive impairment
Apathy, depression and irritability were frequent, with symptom patterns differing across clinical subtypes in studies using a shared assessment tool.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
Behavioral and psychological symptoms were common across the vascular cognitive impairment groups included in this review. Apathy, depression and irritability featured prominently, while mixed dementia also showed substantial sleep disturbances and hallucinations. These pooled descriptions help characterize the studied groups, but do not predict an individual's symptoms or explain why the patterns differ.
The abstract does not report confidence intervals, symptom-assessment timeframes or formal tests of differences between subtypes. Apparent differences in prevalence should therefore be interpreted cautiously, rather than treated as confirmed contrasts.
What researchers found
Pooled prevalence of apathy in subcortical vascular cognitive impairment
A descriptive subgroup estimate using the Neuropsychiatric Inventory, with no treatment comparator; symptom-assessment timeframe was not reported.
A shared assessment tool
Eligible studies used the Neuropsychiatric Inventory, allowing the authors to pool estimates for its symptom domains. The review separated unspecified and subcortical vascular cognitive impairment, mixed dementia, and vascular cognitive impairment without dementia.
Mechanisms remain hypotheses
The authors propose possible vascular and neurodegenerative explanations for the symptom patterns. Those explanations remain hypotheses in this abstract; the pooled symptom frequencies do not establish the underlying biological mechanisms.
The original publication
Behavioral and psychological symptoms of dementia associated with vascular impairment: a systematic review and meta-analysis.
Santos AP, Lôbo AOM, Santos CBAL et al.
Braz J Psychiatry · 2025
- PubMed ID
- 41043167
- Record checked
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