Related Experiment Video
Updated: Aug 23, 2026

Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions
Published on: April 23, 2021
Blood pressure variability and cognitive function in older hypertensives
P Cicconetti1, M Costarelia, A Moise
1Department of Geriatrics, 1st Institute of Medicine, University La Sapienza of Rome, Piazzale A. Moro, 5, I-00161 Rome, Italy. paolocicconetti@tin.it
Insights
Blood pressure variability does not impact cognitive function in older hypertensive adults. This study found no significant differences in cognitive assessments between groups with high and low systolic blood pressure variability.
Area of Science:
- Cardiovascular Research
- Neuroscience
- Gerontology
Background:
- Cerebrovascular damage is linked to both average blood pressure (BP) and BP variability.
- Understanding the impact of BP variability on cognitive function is crucial for aging populations.
Purpose of the Study:
- To investigate the relationship between 24-hour BP variability and cognitive function in older hypertensive individuals.
- To determine if systolic BP variability affects cognitive performance and brain activity.
Main Methods:
- Forty older, untreated hypertensive patients underwent 24-hour ambulatory BP monitoring (ABPM).
- Participants were divided into high and low systolic BP variability groups based on standard deviation and coefficient of variation.
- Cognitive function was assessed using the Mini-Mental State Examination (MMSE) and brain event-related potentials (ERPs).
Main Results:
- No statistically significant differences were observed in MMSE scores between the high and low SBP variability groups.
- N2 and P300 latencies in event-related potentials did not differ significantly between the groups.
- Cognitive abilities, as measured by MMSE and ERPs, showed no association with 24-hour SBP variability.
Conclusions:
- 24-hour systolic blood pressure variability is not related to cognitive function in older hypertensive patients.
- These findings suggest that BP variability may not be a primary determinant of cognitive decline in this demographic.
- Further research may explore other factors influencing cognitive function in hypertensive individuals.
Abstract:
Several studies have shown that cerebrovascular organ damage can related not only to average blood pressure (BP) levels, but also to BP variability. The aim of this study was to investigate the relationship between 24 hr BP variability and cognitive function in older hypertensives. Forty older, never treated hypertensives were submitted to 24 hr ambulatory BP monitoring (ABPM) and subdivided, according to the variability of the systolic BP (SBP), in two groups: 23 with higher (> PV) and 17 with lower (< PV) SBP variability, defined as the standard deviation (SD) of the mean 24 hr SBP values and as coefficient of variation (CV). They underwent a cognitive assessment by mini mental state examination (MMSE) and a recording of the brain event-related potentials (ERPs). ERPs record neuronal electric activity when the patients are submitted to frequent and rare acoustic stimuli and must recognize and count rare (target) stimuli. The two groups with statistically different 24 hr SBP variability, did not show significant differences in MMSE scores or in N2 and P300 ERP latencies, thus indicating a lack of difference in the cognitive ability between the two groups. Our results show that cognitive function is not related to 24 hr SBP variability in older hypertensives.
Related Concept Videos
Hypertension III: Clinical Manifestations and Diagnostic Studies
Hypertension and Regulation of Blood Pressure
Factors affecting Blood pressure
Physiological Factors:
Special considerations while measuring blood pressure
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
Hypertension II: Pathophysiology
Hypertension I: Introduction