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Related Experiment Videos

Mitral valve alternans.

K M Kessler

    Journal of the American College of Cardiology
    |May 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Mitral valve alternans, seen on echogram, occurred in a patient with cardiomyopathy and pulsus alternans. This phenomenon involved both systolic and diastolic heart function changes.

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    Area of Science:

    • Cardiology
    • Echocardiography
    • Heart Failure

    Background:

    • Advanced cardiomyopathy can lead to complex arrhythmias like pulsus alternans.
    • Premature ventricular depolarizations can significantly impact cardiac mechanics.

    Observation:

    • Echocardiography revealed mitral valve alternans in a patient with cardiomyopathy.
    • Pulsus alternans was induced by premature ventricular depolarizations.

    Findings:

    • Weak ventricular beats resulted in decreased left ventricular emptying.
    • This led to blunting of the mitral valve E point, indicating elevated diastolic pressure.
    • Both systolic and diastolic cardiac variables contributed to the observed alternans.

    Implications:

    • Mitral valve alternans may serve as an echocardiographic marker for altered ventricular function.
    • Understanding this phenomenon aids in managing complex heart conditions.
    • This case highlights the interplay of systolic and diastolic dysfunction in alternans.