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Related Experiment Videos

Pseudo-mitral-valve echogram following prosthetic mitral valve replacement.

K M Kessler, A Rahim, D Rodriguez

    Journal of Clinical Ultrasound : JCU
    |February 1, 1980
    PubMed
    Summary

    Echocardiography revealed unusual echoes in the left ventricle of a patient with a prosthetic mitral valve. These echoes likely represent a severed but retained chordal structure, mimicking a normal mitral leaflet motion.

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    Area of Science:

    • Cardiology
    • Medical Imaging
    • Echocardiography

    Background:

    • Prosthetic mitral valve replacement is a common cardiac procedure.
    • Post-operative echocardiography is crucial for assessing valve function and detecting complications.

    Observation:

    • Echocardiographic recordings demonstrated echoes within the left ventricular cavity.
    • These echoes exhibited a motion pattern similar to a normal anterior mitral leaflet.
    • The echo pattern was continuous, visible from multiple views, and localized near the papillary muscles.

    Findings:

    • The observed echoes were unlikely to be thrombus or vegetation.
    • The most probable origin is a pliable chordal structure severed during surgery but not removed.
    • The echoes showed a striking responsiveness to hemodynamic influences.

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    Implications:

    • This finding suggests a potential, previously unrecognized, source of artifact in echocardiography.
    • Understanding the origin and behavior of these echoes is important for accurate diagnosis.
    • Further investigation into the prevalence and clinical significance of such retained chordal structures is warranted.