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Related Experiment Videos

Endocarditis prophylaxis for patients with mitral valve prolapse. A quantitative analysis.

D H Bor, D U Himmelstein

    The American Journal of Medicine
    |April 1, 1984
    PubMed
    Summary

    For patients with mitral valve prolapse, routine antibiotic prophylaxis for bacterial endocarditis during dental procedures may cause more harm than benefit. No prophylaxis or erythromycin prophylaxis is preferable to penicillin prophylaxis.

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    Area of Science:

    • Cardiology
    • Infectious Diseases
    • Pharmacology

    Background:

    • Antimicrobial prophylaxis is recommended for patients with mitral valve prolapse undergoing procedures with bacteremia risk.
    • The efficacy and safety of this practice require re-evaluation based on current data.

    Purpose of the Study:

    • To analyze the benefits and risks of antimicrobial prophylaxis for bacterial endocarditis in patients with mitral valve prolapse.
    • To compare the outcomes of no prophylaxis, penicillin prophylaxis, and erythromycin prophylaxis.

    Main Methods:

    • Analysis of published data on bacterial endocarditis.
    • Questionnaire survey of leading authorities on bacterial endocarditis.
    • Modeling of estimated cases and deaths for different prophylaxis strategies.

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    Main Results:

    • Without prophylaxis, an estimated 47 nonfatal and 2 fatal cases of bacterial endocarditis are expected among 10 million patients.
    • Penicillin prophylaxis may lead to 5 bacterial endocarditis cases and 175 drug reaction deaths.
    • Erythromycin prophylaxis is associated with 12 nonfatal and 1 fatal bacterial endocarditis case.

    Conclusions:

    • No prophylaxis or erythromycin prophylaxis appears safer than penicillin prophylaxis for bacterial endocarditis prevention in this patient group.
    • The risks associated with penicillin prophylaxis may outweigh its benefits.
    • Current prophylaxis guidelines warrant reconsideration.