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Cognitive syndromes after the first stroke.

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Vascular cognitive impairment is common after stroke, with specific cognitive deficits predicting dementia. Early identification of these impairments can aid in predicting dementia onset and improving patient quality of life.

Keywords:
Cognitive functionsDementiaVascular cognitive syndrome

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Area of Science:

  • Neurology
  • Cognitive Science
  • Gerontology

Background:

  • Vascular cognitive impairment (VCI) is a significant complication following stroke.
  • Understanding the specific cognitive deficits associated with different types of VCI is crucial for diagnosis and management.
  • Predicting the progression to dementia in VCI patients is essential for timely intervention.

Purpose of the Study:

  • To determine cognitive function impairments in vascular cognitive syndromes.
  • To identify predictors of dementia in patients with VCI.
  • To assess the quality of life in VCI patients with and without dementia.

Main Methods:

  • A one-year prospective study of 275 hospitalized neurology patients.
  • Classification of patients into subgroups: dementia of strategic infarct (DSI), cortical dementia (CD), subcortical dementia (SCD), hemorrhagic dementia (HD), and non-demented VCI patients.
  • Clinical examination and scoring using appropriate measurement scales to assess cognitive functions.

Main Results:

  • VCI was diagnosed in 69% of patients, with subcortical dementia (SCD) being the most prevalent (58%).
  • Significant associations were found between intelligence levels and VCI post-stroke, and between dementia and impairments in memory, visual perception, and constructional abilities.
  • Executive functions were notably impaired in CD and SCD patients. Patients without dementia reported a significantly better quality of life.

Conclusions:

  • Vascular cognitive syndromes are frequent sequelae of stroke.
  • Specific cognitive function impairments are significantly linked to dementia in VCI patients.
  • Impairments in certain cognitive functions can serve as predictors for dementia onset, enabling better patient management and quality of life assessment.