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[Vasodilator therapy in cardiac failure]

N Akatsuka

    Nihon Rinsho. Japanese Journal of Clinical Medicine
    |May 1, 1993
    PubMed
    Summary
    This summary is machine-generated.

    Vasodilator drugs like nitrates and hydralazine improve heart failure symptoms by lowering cardiac pressure and increasing output. Combining them with ACE inhibitors is recommended for chronic heart failure management.

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    Area of Science:

    • Cardiology
    • Pharmacology

    Context:

    • Symptomatic heart failure management.
    • Vasodilator therapy is a standard treatment.

    Purpose:

    • To evaluate the efficacy of vasodilator drugs in heart failure.
    • To assess the combined effects of nitrates and hydralazine.

    Summary:

    • Isosorbide dinitrate (venodilator) reduces cardiac filling pressure.
    • Hydralazine (arterial vasodilator) decreases afterload and boosts cardiac output.
    • Combined nitrates and hydralazine show synergistic benefits, improving cardiac output, reducing filling pressures, enhancing exercise tolerance, and extending life expectancy.
    • Prazosin did not improve survival in the V-HeFT trial.
    • Calcium antagonists' benefits on exercise tolerance and quality of life remain unproven despite hemodynamic improvements.

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    Impact:

    • Combined nitrates and hydralazine, along with ACE inhibitors, are considered a reasonable therapeutic approach for chronic heart failure.
    • This combination therapy offers significant improvements in key heart failure indicators.