Blood pressure variability and silent cerebral damage in essential hypertension

Elisenda Gómez-Angelats1, Alejandro de La Sierra, Cristina Sierra

  • 1Department of Internal Medicine, Hospital Clinic, IDIBAPS (Institut d'Investigacions Biomèdiques August Pi i Sunyer), University of Barcelona, Spain.

Insights

High long-term systolic blood pressure variability is linked to silent brain lesions in hypertensive patients. This association is partly explained by elevated blood pressure levels.

Area of Science:

  • Cardiology
  • Neurology
  • Hypertension Research

Background:

  • Blood pressure (BP) variability is a significant predictor of target organ damage and cardiovascular outcomes.
  • Silent cerebral white matter lesions are markers of subclinical brain damage in hypertensive individuals.

Purpose of the Study:

  • To investigate the association between blood pressure variability and silent cerebral white matter lesions.
  • To analyze this relationship in middle-aged, asymptomatic essential hypertensive patients.

Main Methods:

  • Studied 43 untreated middle-aged hypertensive patients.
  • Assessed short-term and long-term BP variability using continuous beat-to-beat and ambulatory monitoring.
  • Utilized cerebral MRI to detect white matter lesions.

Main Results:

  • Patients with white matter lesions showed higher long-term systolic BP variability (P=0.047 and P=0.022).
  • This association was not independent of elevated BP and lost significance after adjustment.
  • No significant differences were found for short-term systolic or any diastolic BP variability.

Conclusions:

  • Long-term systolic BP variability is significantly associated with silent cerebral white matter lesions in essential hypertensives.
  • The relationship is partially dependent on the absolute level of blood pressure elevation.
Abstract

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