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[Therapeutic problems in hyperkinetic heart syndrome].

H Rameis, D Magometschnigg

    Acta Medica Austriaca
    |January 1, 1984
    PubMed
    Summary

    Beta-blockers safely reduce heart rate in hyperkinetic heart syndrome but do not sufficiently lower blood pressure. Verapamil offers better hypotensive effects, suggesting it as a potential alternative therapy.

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    Area of Science:

    • Cardiology
    • Pharmacology

    Background:

    • Hyperkinetic heart syndrome is typically treated with beta-blockers.
    • The efficacy of current beta-blocker therapy in managing blood pressure in this condition requires further investigation.

    Purpose of the Study:

    • To compare the circulatory effects of specific beta-blockers (Celiprolol, Pindolol, Oxprenolol) with each other and with the calcium antagonist Verapamil in hyperkinetic heart syndrome.
    • To evaluate the effectiveness of these agents in reducing heart rate and diastolic blood pressure.

    Main Methods:

    • Two crossover studies were conducted.
    • Study 1: Celiprolol vs. Pindolol.
    • Study 2: Oxprenolol vs. Verapamil.

    Main Results:

    • All tested beta-blockers effectively reduced elevated heart rate.
    • Beta-blockers failed to achieve a significant reduction (≥15 mm Hg) in diastolic blood pressure.
    • Verapamil also caused bradycardia but had less impact on heart rate compared to beta-blockers.
    • Verapamil demonstrated more pronounced hypotensive effects than beta-blockers.

    Conclusions:

    • Beta-blockers may not be the first-line therapy for hyperkinetic heart syndrome due to insufficient blood pressure reduction.
    • Beta-blockers might be effective when combined with diuretics or vasodilators.
    • Verapamil presents a viable alternative therapy, despite requiring multiple daily doses.

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