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Related Experiment Videos

Double mitral leaflet prolapse: echocardiographic-phonocardiographic correlation.

M V Cohen

    American Heart Journal
    |February 1, 1976
    PubMed
    Summary

    Mitral valve prolapse (MVP) affects 10% of patients undergoing echocardiography. Echocardiographic patterns of MVP did not correlate with specific heart sounds, suggesting redundant leaflets may cause abnormal sounds.

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    Area of Science:

    • Cardiology
    • Echocardiography
    • Cardiac Auscultation

    Background:

    • Mitral valve prolapse (MVP) is a common cardiac condition.
    • Diagnostic evaluation often involves echocardiography and phonocardiography.
    • Understanding the relationship between echocardiographic findings and auscultatory events in MVP is crucial.

    Purpose of the Study:

    • To investigate the prevalence of mitral valve prolapse in patients referred for echocardiography.
    • To correlate echocardiographic patterns of mitral valve prolapse with phonocardiographic findings.
    • To explore the potential mechanisms generating abnormal heart sounds in MVP.

    Main Methods:

    • Retrospective analysis of 35 patients diagnosed with mitral valve prolapse via echocardiography.
    • Classification of prolapse patterns (Type A: midsystolic, Type B: pansystolic).
    • Simultaneous phonocardiographic examinations to record heart sounds.

    Main Results:

    • Ten percent of referred patients had mitral valve prolapse.
    • 54% of MVP patients exhibited prolapse of both mitral leaflets.
    • No significant correlation was found between echocardiographic prolapse type and specific auscultatory events.
    • One patient with Type A prolapse had no audible abnormalities.

    Conclusions:

    • Echocardiographic patterns of mitral valve prolapse do not consistently correlate with specific auscultatory findings.
    • Redundant mitral leaflets, rather than chordae tendineae, are suggested as the source of abnormal sounds in MVP.
    • Further research is needed to elucidate the precise mechanisms of sound generation in mitral valve prolapse.

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