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Clinical value of blood pressure variability
G Parati1, L Ulian, C Santucciu
1Istituto Scientifico Ospedale S. Luca, IRCCS, Fondazione Istituto Auxologico Italiano, Milano, Milan. gparati@imiucca.csi.unimi.it
Blood Pressure. Supplement
|January 1, 1997
Summary
Blood pressure (BP) variability, not just average levels, is clinically relevant for diagnosing hypertension and assessing treatment. Advanced non-invasive techniques now allow detailed analysis of BP fluctuations, offering new insights into patient prognosis.
Area of Science:
- Cardiology
- Hypertension Research
- Biomedical Engineering
Background:
- Blood pressure (BP) exhibits continuous fluctuations, with both amplitude and frequency being clinically significant.
- Pronounced BP changes during medical visits can lead to diagnostic and treatment assessment errors.
- Hypertension-related end-organ damage is linked to 24-hour average BP and, independently, to BP variability.
Purpose of the Study:
- To highlight the clinical relevance of blood pressure variability in hypertension.
- To discuss the prognostic implications of BP variability.
- To introduce advanced non-invasive techniques for quantifying BP variability.
Main Methods:
- Review of existing studies on BP variability and hypertension.
- Discussion of technological advancements in non-invasive BP monitoring.
- Analysis of frequency components of beat-to-beat finger BP variability.
Main Results:
- BP variability is independently related to end-organ damage in hypertension.
- BP variability may hold prognostic relevance for hypertensive patients.
- New technologies enable detailed quantification of BP variability across all frequencies.
Conclusions:
- BP variability is a crucial factor in hypertension management beyond average BP values.
- Further research is needed to establish the role of BP variability as a surrogate endpoint in essential hypertension.
- Non-invasive beat-to-beat BP monitoring offers a promising avenue for comprehensive hypertension assessment.