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Related Experiment Videos

Pharmacokinetic evaluations with highly sophisticated analytical methods.

J Kappler, H Jäger, M Nieder

    Methods and Findings in Experimental and Clinical Pharmacology
    |October 1, 1986
    PubMed
    Summary

    Miroton, a cardioactive glycoside mixture, significantly improved heart function in patients with chronic myocardial insufficiency. Treatment reduced end-diastolic volume and increased left ventricular ejection fraction over four weeks.

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    Area of Science:

    • Cardiology
    • Pharmacology

    Background:

    • Chronic myocardial insufficiency is characterized by cardiac enlargement and reduced left ventricular ejection fraction (LVEF).
    • Effective therapeutic interventions are crucial for managing this condition and improving cardiac function.

    Purpose of the Study:

    • To evaluate the efficacy of Miroton, a cardioactive glycoside mixture, in patients with chronic myocardial insufficiency.
    • To assess the impact of Miroton on end-diastolic volume (EDV) and LVEF.

    Main Methods:

    • A study involving 26 patients (53-72 years) with chronic myocardial insufficiency.
    • Four weeks of treatment with Miroton (3 x 60 drops/day) after a 4-week washout period.
    • ECG-triggered radionuclide angiography used to measure EDV and LVEF before and after 2 and 4 weeks of treatment.

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    Main Results:

    • Miroton treatment led to a significant decrease in EDV by 18% after 4 weeks (baseline 126.8 ml).
    • LVEF increased to 56% after 4 weeks (baseline 43.7%), with notable improvement after 2 weeks (47.2%).
    • An inverse relationship between EDV and LVEF indicated a positive inotropic effect on the myocardium.

    Conclusions:

    • Miroton demonstrates a positive inotropic effect, improving cardiac function in patients with chronic myocardial insufficiency.
    • The therapeutic benefits of Miroton on EDV and LVEF were more pronounced in the latter two weeks of treatment.