Current view on post-stroke dementia.

Area of Science:

• Neurology
• Gerontology
• Public Health

Background:

• Dementia is a significant complication following stroke, impacting approximately one-third of survivors.
• Post-stroke dementia (PSD) prevalence varies due to methodological differences, patient characteristics, stroke type, diagnostic tools, and assessment timing.
• PSD is associated with increased mortality, disability, and institutionalization rates among stroke survivors.

Purpose of the Study:

• To review the current understanding of post-stroke dementia (PSD), including its prevalence, risk factors, etiology, and management challenges.
• To highlight the need for further research into biomarkers and effective interventions for PSD.
• To emphasize the significant association between PSD and other neuropsychiatric disorders, particularly post-stroke depression.

Main Methods:

• Literature review and synthesis of existing studies on post-stroke dementia.
• Analysis of factors influencing PSD prevalence and incidence.
• Examination of the etiological pathways and risk factors associated with PSD.

Main Results:

• Prevalence estimates for PSD vary widely across studies.
• Identified risk factors include demographics, vascular aspects, stroke characteristics, neuroimaging findings, and stroke complications.
• Mixed etiologies, including vascular pathology and Alzheimer's disease, contribute to PSD. Post-stroke depression is a significant comorbidity.

Conclusions:

• PSD is a major complication of stroke with significant adverse outcomes.
• Current understanding of PSD etiology and risk factors is incomplete, necessitating further investigation into genetic, biological, and inflammatory biomarkers.
• Effective prevention and treatment strategies for PSD are lacking, underscoring the urgent need for continued research and development of targeted interventions.