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Microcirculation in systemic hypertension.

M R Cesarone1, G Laurora, G V Belcaro

  • 1Microcirculation Laboratory, Universita Abruzzese G. D'Annunzio, Chieti, Italy.

Angiology
|November 1, 1992
PubMed
Summary
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Nifedipine treatment improved microcirculation in patients with hypertension, increasing skin blood flow and oxygen levels. This study highlights laser-Doppler flowmetry

Area of Science:

  • Cardiovascular Medicine
  • Microcirculation Research

Background:

  • Idiopathic systemic hypertension is associated with altered microcirculatory function.
  • Previous studies suggest potential microvascular changes in hypertensive individuals.

Purpose of the Study:

  • To evaluate skin microcirculation in hypertensive patients compared to normal subjects.
  • To assess the effect of nifedipine on microcirculatory parameters in hypertension.

Main Methods:

  • Laser-Doppler flowmetry for skin blood flow.
  • Transcutaneous measurements of partial pressure of oxygen (PO2) and carbon dioxide (PCO2).
  • Capillary permeability determination before and after nifedipine treatment.

Main Results:

  • Hypertensive patients exhibited reduced skin blood flow, PO2, PCO2, and capillary permeability compared to controls.

Related Experiment Videos

  • Nifedipine treatment significantly improved these microcirculatory parameters.
  • Systolic and diastolic blood pressures decreased following nifedipine therapy.

    • Conclusions:

    • Laser-Doppler flowmetry and other microcirculatory techniques can differentiate hypertensive patients from healthy individuals.
    • Nifedipine effectively improves microcirculatory function in patients with idiopathic systemic hypertension.