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Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients
Published on: December 16, 2022
High frequency of cognitive dysfunction before stroke among older people
C Gutiérrez Pérez1, M Sävborg, U Påhlman
1Sahlgrenska Academy, Institution of Medicine, Gothenburg University, Gothenburg, Sweden.
International Journal of Geriatric Psychiatry
|October 6, 2010
Summary
Cognitive impairment is common before stroke, with 52% of patients affected. This pre-existing cognitive dysfunction contributes to the high rates of impairment observed after a stroke event.
Area of Science:
- Neurology
- Cognitive Neuroscience
Background:
- Stroke is a leading cause of disability, often associated with cognitive deficits.
- The prevalence and profile of cognitive impairment in the acute phase of stroke require further investigation.
Purpose of the Study:
- To examine cognitive functions before and after stroke.
- To determine the frequency and characteristics of cognitive impairment.
- To explore the relationship between pre-stroke cognitive status and post-stroke impairment.
Main Methods:
- A cohort of 74 early-phase stroke patients and 49 healthy controls were assessed.
- Neuropsychological test batteries and the Mini-Mental State Examination (MMSE) were utilized.
- Pre-stroke cognitive status was evaluated using the Cognitive Impairment Questionnaire.
Main Results:
- 96% of stroke patients showed cognitive impairments on detailed testing, versus 39% on MMSE.
- Executive function (76%) and psychomotor tempo (75%) were most frequently affected.
- 52% of patients had cognitive dysfunction before stroke, independent of post-stroke impairment patterns.
Conclusions:
- Cognitive impairment is highly prevalent before stroke in older adults.
- Pre-existing cognitive dysfunction is a significant factor contributing to post-stroke cognitive impairment.
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