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[Hemodynamic relations between systemic and pulmonary circulation in hypertension].

A V Tuev, L A Nekrutenko

    Kardiologiia
    |April 1, 1983
    PubMed
    Summary

    Essential hypertension affects both central and pulmonary circulation, leading to increased pulmonary artery pressure and lung vascular volume. These changes impact cardiac output and highlight interconnectedness in circulatory pressure regulation.

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    Area of Science:

    • Cardiovascular Physiology
    • Hypertension Research

    Context:

    • Essential hypertension impacts systemic and pulmonary circulation.
    • Radio- and polycardiographic techniques were employed.
    • 111 patients with essential hypertension (stages I, IIa, IIb) were studied.

    Purpose:

    • To investigate changes in central and pulmonary circulation in essential hypertension.
    • To quantitatively assess relationships between systemic and pulmonary circulation parameters.

    Summary:

    • Pulmonary circulation alterations include increased pulmonary artery systolic pressure and lung vascular volume, with high blood flow and normal total pulmonary resistance.
    • Reduced cardiac output in vasoconstrictive mechanisms is linked to high total pulmonary resistance, reduced venous return, and elevated peripheral resistance.

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  • Hemodynamic changes were most evident in patients with normokinetic circulation, revealing functional bonds within circulatory variants.

    • Impact:

    • Findings suggest similar mechanisms in systemic and regional pressure formation in essential hypertension.
    • Provides insights into the complex interplay of circulatory parameters in hypertensive patients.
    • Highlights the significance of pulmonary hemodynamic assessment in managing essential hypertension.