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Greater Blood Pressure Variability Is Associated With Lower Cognitive Performance.

Tan Lai Zhou1,2, Abraham A Kroon1,2, Thomas T van Sloten2,3,4

  • 1From the Department of Internal Medicine (T.L.Z., A.A.K., M.T.S., C.D.A.S., R.M.A.H.), Maastricht University Medical Centre, the Netherlands.

Hypertension (Dallas, Tex. : 1979)
|February 12, 2019
PubMed
Summary
This summary is machine-generated.

Greater blood pressure variability (BPV), especially diastolic BPV, is linked to poorer cognitive function in middle-aged and older adults. This finding suggests BPV may be a modifiable risk factor for cognitive decline.

Keywords:
agingblood pressureexecutive functionmemoryrisk factor

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Area of Science:

  • Neuroscience
  • Cardiovascular Health
  • Gerontology

Background:

  • Increased life expectancy leads to more age-related cognitive decline.
  • Identifying modifiable risk factors for cognitive impairment is crucial.
  • Blood pressure variability (BPV) is a potential risk factor due to its link with cerebral ischemia.

Purpose of the Study:

  • To investigate the cross-sectional association between systolic and diastolic BPV and cognitive functions.
  • To assess memory, information processing speed, and executive function in relation to BPV.

Main Methods:

  • Utilized data from 1804 participants aged 40-75 in The Maastricht Study.
  • Calculated a composite BPV-index from within-visit, 24-hour, and 7-day BPV.
  • Employed linear regression, adjusting for age, sex, education, mean blood pressure, and cardiovascular risk factors.

Main Results:

  • Greater diastolic BPV was associated with lower information processing speed and executive function.
  • Greater systolic BPV showed a marginal association with lower memory function.
  • The cognitive effects of BPV were equivalent to approximately 3 years of aging.

Conclusions:

  • Elevated very short-term to mid-term diastolic and systolic BPV may be modifiable risk factors for cognitive deterioration.
  • These findings are relevant for community-dwelling individuals aged 40-75.
  • Diastolic BPV appears to have a more pronounced association with cognitive decline than systolic BPV.