Highly variable blood pressure as a predictor of poor cognitive outcome in patients with acute lacunar infarction.
- Authors
- Lee, Ju-Hun; Oh, Euna; Oh, Mi Sun; Kim, Chulho; Jung, San; Park, Jong Ho; Kang, Yeonwook; Yu, Kyung-Ho; Lee, Byung-Chul
- Issue Date
- Dec-2014
- Publisher
- LIPPINCOTT WILLIAMS & WILKINS
- Keywords
- blood pressure variability; cognitive function; small-vessel disease
- Citation
- COGNITIVE AND BEHAVIORAL NEUROLOGY, v.27, no.4, pp.189 - 198
- Indexed
- SCIE
SCOPUS
- Journal Title
- COGNITIVE AND BEHAVIORAL NEUROLOGY
- Volume
- 27
- Number
- 4
- Start Page
- 189
- End Page
- 198
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/158343
- DOI
- 10.1097/WNN.0000000000000040
- ISSN
- 1543-3633
- Abstract
- OBJECTIVE AND BACKGROUND:: Many patients develop cognitive impairment after an acute stroke. It is not clear whether blood pressure variability is a prognostic factor for cognitive impairment. We aimed to determine the association between blood pressure variability on hospital admission and cognitive outcome in patients with acute lacunar infarction. METHODS:: We performed a retrospective analysis on 22 men and 14 women (mean age, 61.8 years) who had completed a cognitive evaluation 3 months after onset of an acute lacunar infarction. The patients had no previous functional disability or dementia, stenosis in major cerebral arteries, cardiac embolic sources, or infarct in strategic territories for cognition. We used standard deviation and coefficient of variance as parameters of blood pressure variability, and each cognitive function test z score as an outcome parameter. We performed linear regression analysis to assess the relationship between blood pressure variability and cognition, adjusted for vascular risk factors, severity of neurologic deficits, and mean blood pressure. RESULTS:: High variability of both systolic and diastolic blood pressure was significantly associated with low z scores on the Controlled Oral Word Association Test and the Digit Symbol Coding test (P<0.01). High variability of diastolic blood pressure was significantly associated with low z scores on the Korean Mini-Mental State Examination and Seoul Verbal Learning Test delayed recall (P<0.01). CONCLUSIONS:: Highly variable blood pressure on admission for acute lacunar infarction may predict poor cognitive outcomes, especially frontal lobe dysfunction.
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