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Related Experiment Videos

Clinical experience with the Hall pivoting disk valve.

P J Starek, G F Murray, B A Keagy

    The Thoracic and Cardiovascular Surgeon
    |May 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

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    The Medtronic-Hall pivoting disk valve shows excellent long-term survival and low complication rates for both aortic and mitral valve replacement. This study highlights its safety and efficacy in a large patient cohort.

    Area of Science:

    • Cardiovascular Surgery
    • Biomaterials Science
    • Clinical Outcomes Research

    Background:

    • The Medtronic-Hall pivoting disk valve has been used since 1978.
    • Evaluation of long-term outcomes is crucial for prosthetic heart valves.

    Purpose of the Study:

    • To assess the long-term survival, complications, and functional status of patients receiving Medtronic-Hall valves.
    • To evaluate the hemodynamic performance and structural integrity of the valve.

    Main Methods:

    • Retrospective analysis of 172 patients who received Medtronic-Hall valves (aortic, mitral, or both).
    • Actuarial survival analysis, assessment of hemolysis (LDH levels), functional status, cerebrovascular accidents, and valve thrombosis.
    • Intraoperative hemodynamic measurements were performed.

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    Main Results:

    • High actuarial survival rates at 4.5 years (mitral) and 2.5 years (aortic/mitral).
    • No clinical evidence of hemolysis; low incidence of cerebrovascular accidents and valve thrombosis.
    • 80% of survivors were asymptomatic; no structural valve failures observed.
    • Smallest valve size (#21) showed mild stenosis.

    Conclusions:

    • The Medtronic-Hall pivoting disk valve demonstrates favorable long-term survival and a low complication profile.
    • The valve is associated with good functional outcomes and no structural failures in this patient series.
    • The study supports the continued use of the Medtronic-Hall valve in cardiac surgery.