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Pathophysiology of systemic hypertension.

T G Pickering

    The American Journal of Cardiology
    |September 30, 1986
    PubMed
    Summary

    Systemic hypertension, a disorder of blood pressure regulation, involves increased peripheral resistance and normal cardiac output. Its causes are multifactorial, involving vascular tone, hormonal systems, and genetic, environmental, and psychological factors.

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    Area of Science:

    • Cardiovascular Physiology
    • Hypertension Pathophysiology

    Background:

    • Systemic hypertension is a complex disorder of blood pressure regulation.
    • Its etiology is multifactorial, with no single cause identified.
    • Understanding the underlying mechanisms is crucial for effective management.

    Purpose of the Study:

    • To review the quantitative aspects of blood pressure regulation in hypertension.
    • To explore the various mechanisms contributing to increased peripheral resistance.
    • To discuss the hormonal, genetic, environmental, and psychological factors involved.

    Main Methods:

    • Review of existing literature on hypertension.
    • Analysis of hemodynamic patterns in hypertensive patients.
    • Discussion of physiological and biochemical factors influencing blood pressure.

    Main Results:

    • Sustained hypertension typically presents with increased peripheral resistance and normal cardiac output.
    • Hemodynamic patterns can vary with age.
    • Factors include arteriolar changes, blood viscosity, catecholamines, angiotensin II, and the renin-angiotensin-aldosterone system.

    Conclusions:

    • Hypertension results from a complex interplay of factors affecting vascular tone and blood pressure regulation.
    • Multiple mechanisms, including hormonal and genetic influences, contribute to the condition.
    • Further research into these diverse factors is warranted.

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