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Related Experiment Videos

Intermittent severe mitral regurgitation.

M A McDonnell, M J Preece, T J Tsagaris

    Chest
    |August 1, 1978
    PubMed
    Summary
    This summary is machine-generated.

    This study presents two patients with intermittent severe mitral regurgitation and cyclic ventricular pressure variations. The cause of varying mitral regurgitation in these patients with combined valvular issues remains unclear.

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    Area of Science:

    • Cardiology
    • Cardiovascular Medicine
    • Clinical Research

    Background:

    • Mitral regurgitation (MR) is a common valvular heart disease.
    • Cyclic variations in ventricular pressures can indicate complex hemodynamic conditions.
    • Understanding the etiology of MR is crucial for patient management.

    Observation:

    • Two patients presented with hemodynamic evidence of intermittent severe mitral regurgitation.
    • Both patients exhibited cyclic variations in right and left ventricular pressures.
    • Combined aortic and mitral valvular regurgitation was present in both cases, with unknown etiology.

    Findings:

    • The patients had no clear evidence of papillary muscle dysfunction.
    • The degree of mitral regurgitation showed significant cyclic variation.

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  • The underlying cause for the intermittent nature of severe mitral regurgitation was not identified.

    • Implications:

    • Further investigation is needed to elucidate the mechanisms behind intermittent severe mitral regurgitation.
    • This case series highlights the complexity of valvular heart disease.
    • Improved diagnostic approaches may be required for similar presentations.