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Tristan Manalac, 09 Sep 2018
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Age alters relation between cognitive function, intraindividual variability in BP

13 Jan 2018

Intraindividual measurement-to-measurement variation in blood pressure (BP IIV) significantly predicts cognition with advancing age, a study has found.

There was a significant age by BP IIV interaction, according to the investigators.

Among individuals aged >60 years, IIV in systolic (SBP) and diastolic blood pressure (DBP) had an inverse association with Global Composite, Scanning and Tracking and the Similarities test. In addition, IIV in SBP correlated with Verbal Memory and the Mini-Mental State Examination. Furthermore, IIV in DBP was associated with the Visual-Spatial Memory and Organization composite.

No significant associations were observed between BP IIV and cognitive function in individuals aged <60 years.

In one study, researchers found that higher overall variability in both SBP and DBP was associated with poorer cognitive performance in unsuccessfully treated hypertensive individuals (with BP ≥140/90 mm Hg). However, these associations were not evident in those with controlled hypertension. [Hypertension 2014;64:1094-1101]

The present study aimed to assess age by BP IIV (SBP and DBP) interactions vis-à-vis cognitive functioning while considering medication class and polypharmacy, which might also affect BP IIV with advancing age.

A total of 980 community-dwelling individuals from the Maine-Syracuse Longitudinal Study were included in the cross-sectional analyses. Automated BP measures were taken 15 times (five times each in sitting, reclining and standing positions). A thorough neuropsychological test battery was used after the BP assessment to examine cognitive function.

“There is evidence to suggest that BP IIV may be superior to mean BP for predicting cognitive function, taken from both within a single visit and between-visits,” the investigators noted. “BP IIV increases with age in studies of persons middle-aged and older.”

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Most Read Articles
Tristan Manalac, 09 Sep 2018
Structured and remote patient management interventions are effective in reducing all-cause mortality and the number of days lost due to unplanned hospitalizations in heart failure patients, according to a recent study.
Radha Chitale, 08 Apr 2016
A trial assessing the implantable CardioFit® device designed to stimulate the parasympathetic nervous system in heart failure patients failed to meet its primary endpoints – reducing the rate of hospitalization due to heart failure or death by any cause.
27 Aug 2018
Obese men appear to have better ST-elevation myocardial infarction (STEMI) prognoses than their normal weight counterparts, regardless of metabolic syndrome status, a recent study has shown.
Stephen Padilla, 04 Sep 2018
The prevalence of individuals with hypertension is expected to rise significantly with the implementation of the 2017 American College of Cardiology (ACC)/American Heart Association (AHA) high blood pressure guidelines, according to a study.