Neuropsychological profiles of 5-year ischemic stroke survivors by oxfordshire stroke classification and hemisphere of lesion

Baker-Collo, Suzanne, Starkey, Nicola, Lawes, Carlene, Feigin, Valery, Senior, Hugh and Parag, Varsha (2011) Neuropsychological profiles of 5-year ischemic stroke survivors by oxfordshire stroke classification and hemisphere of lesion. Stroke, 43 1: 50-55. doi:10.1161/STROKEAHA.111.627182

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Author Baker-Collo, Suzanne
Starkey, Nicola
Lawes, Carlene
Feigin, Valery
Senior, Hugh
Parag, Varsha
Title Neuropsychological profiles of 5-year ischemic stroke survivors by oxfordshire stroke classification and hemisphere of lesion
Journal name Stroke   Check publisher's open access policy
ISSN 0039-2499
1524-4628
Publication date 2011-01
Sub-type Article (original research)
DOI 10.1161/STROKEAHA.111.627182
Volume 43
Issue 1
Start page 50
End page 55
Total pages 6
Place of publication Philadelphia, PA, United States
Publisher Lippincott Williams & Wilkins
Collection year 2012
Language eng
Formatted abstract
BACKGROUND AND PURPOSE:
Although the neuropsychological literature typically examines stroke outcomes by hemisphere of lesion, the medical literature provides classifications more closely linked to circulatory distribution impacted by stroke. This article examined profiles of cognitive function by hemisphere and by Oxfordshire Community Stroke Project stroke classification.

METHODS:
This study included a sample of 315 5-year ischemic stroke survivors. Assessment included tests of verbal memory, visual memory, word finding/verbal fluency, abstract visual reasoning, executive functioning, and speed of processing.

RESULTS:
The sample produced scores within 1 standard deviation of the normative mean on tests of abstract visual reasoning, verbal memory, and visual recall. Impaired performances were observed for executive function and processing speed. Profile analysis revealed no significant differences in overall cognitive performance or in the profile of performance across measures by hemisphere of lesion. However, groups defined by Oxfordshire Community Stroke Project categories produced significantly different cognitive profiles. Post hoc analyses indicate those with posterior stroke performed best overall on all tests except the Stroop Dots trial, whereas those with total anterior stroke produced significantly worse scores on tasks requiring visual abstract reasoning (Block Design, Rey Figure Copy), word finding(Boston Naming Test), and processing speed (Stroop Dots, Trails A).

CONCLUSIONS:

Oxfordshire Community Stroke Project stroke subtypes identified significant differences between groups, suggesting this classification system is of greater use than hemisphere of lesion in predicting poststroke cognitive outcomes.
Keyword Classification
Hemisphere
Ischemic stroke
Neuropsychological assessment
Profile
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online 13 October 2011.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
School of Medicine Publications
School of Nursing, Midwifery and Social Work Publications
 
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Created: Mon, 05 Dec 2011, 14:19:14 EST by Dr Hugh Senior on behalf of School of Medicine