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[Hypertension and peripheral arterial hemodynamics]
G Milio1, F Ferrara, F Raimondi
1Cattedra di Angiologia, Università degli Studi, Palermo.
Minerva Cardioangiologica
|May 1, 1997
Summary
Essential hypertension impacts lower limb arterial hemodynamics. Stable hypertension shows structural arterial changes, while borderline hypertension exhibits functional modifications like reduced compliance.
Area of Science:
- Cardiovascular Physiology
- Vascular Medicine
Background:
- Essential hypertension is a complex condition affecting arterial hemodynamics.
- Understanding lower limb vascular patterns in different hypertensive stages is crucial.
Purpose of the Study:
- To evaluate lower limb arterial hemodynamics in essential hypertension.
- To differentiate vascular patterns between stable and borderline hypertensive patients.
Main Methods:
- Strain gauge plethysmography was used to assess arterial hemodynamics.
- Study included 60 uncomplicated hypertensive patients (40 stable, 20 borderline) and 25 normotensive controls.
Main Results:
- Peak flow was reduced in all hypertensive groups, significantly in stable hypertensives.
- Basal vascular resistances increased in all hypertensive patients; minimal vascular resistances increased significantly only in stable hypertensives.
- Vascular reactivity, indicated by hyperemic times, was decreased in all hypertensive patients.
Conclusions:
- Stable hypertensive patients exhibit significant arterial structural changes.
- Borderline hypertensive patients demonstrate functional modifications, including reduced compliance and hyperdynamic conditions.