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Executive function deficits in acute stroke.

Sandra Zinn1, Hayden B Bosworth, Helen M Hoenig

  • 1Research and Development, Veterans Affairs Medical Center, Durham, NC 27705, USA. sandra.zinn@duke.edu

Archives of Physical Medicine and Rehabilitation
|February 3, 2007
PubMed
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Executive dysfunction is common in stroke patients, impacting information processing. Accommodations can improve rehabilitation outcomes for individuals with stroke.

Area of Science:

  • Neurology
  • Neuropsychology
  • Rehabilitation Medicine

Background:

  • Executive dysfunction is a frequent consequence of stroke.
  • Understanding its prevalence and correlates is crucial for effective patient care.

Purpose of the Study:

  • To determine the frequency of executive dysfunction in acute stroke hospitalization.
  • To investigate the relationship between executive dysfunction, stroke severity, and premorbid factors.

Main Methods:

  • Inception cohort study of 47 stroke patients and 2 control groups (TIA and stroke risk factors).
  • Utilized a composite cognitive impairment ratio (CIR) from 6 neuropsychologic tests assessing executive function.
  • Screened for aphasia and ensured capability for neuropsychologic testing.

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Main Results:

  • Stroke patients exhibited a higher mean CIR (.61) compared to controls.
  • Executive dysfunction was prevalent, with over 50% impairment on most test scores.
  • The Symbol Digit Modalities Test and design fluency differentiated stroke from non-stroke patients; CIR correlated with premorbid intelligence, not stroke severity.

Conclusions:

  • Executive function deficits are highly prevalent in acute stroke.
  • These deficits can impede information processing, necessitating environmental and procedural accommodations.
  • Such accommodations may enhance rehabilitation benefits for stroke survivors.