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Cognitive dysfunction after acute lacunar infarct.

Chien-Fu Chen1, Sheng-Hsing Lan, Gim-Thean Khor

  • 1Department of Neurology, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung, Taiwan.

The Kaohsiung Journal of Medical Sciences
|July 23, 2005
PubMed
Summary
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Early lacunar stroke frequently causes cognitive impairment, particularly affecting recent memory. Attention and judgment deficits also correlate with memory problems in these patients.

Area of Science:

  • Neurology
  • Neuropsychology
  • Cognitive Science

Background:

  • Vascular dementia and cognitive impairment are increasingly recognized for their association with mortality and institutionalization.
  • Lacunar stroke, a common type of stroke, can lead to significant neurological deficits.

Purpose of the Study:

  • To identify and characterize cognitive impairments in the early stages following a first-ever acute lacunar stroke.
  • To investigate the prevalence and specific domains of cognitive dysfunction in lacunar stroke patients.

Main Methods:

  • Evaluated 23 first-ever acute lacunar infarction patients within 10 days of stroke onset.
  • Utilized the National Institutes of Health Stroke Scale for stroke severity and the Cognitive Abilities Screening Instrument (CASI) for cognitive function assessment.

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  • Assessments were conducted by a neurologist and a psychologist.

    • Main Results:

    • 91.3% of patients exhibited CASI scores below cutoff, indicating cognitive impairment.
    • All patients demonstrated impairment in at least one cognitive domain.
    • Recent memory was the most frequently affected domain (82.6%), with significant correlations to attention/concentration and abstraction/judgment.

    Conclusions:

    • Cognitive impairment is highly prevalent after acute lacunar infarct.
    • Recent memory deficits are common and may be linked to lesion location, attention, or executive function impairments.