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Related Experiment Videos

Mitral valve replacement with a turtleneck-disc prosthesis.

S S Oparah, J F Keefe, T J Ryan

    The Journal of Thoracic and Cardiovascular Surgery
    |April 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

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    This study evaluated the Harken (Magovern) disc valve in 100 patients over 5 years. While operative mortality was low, late deaths were higher in severe heart failure patients and those with multiple valve replacements.

    Area of Science:

    • Cardiovascular Surgery
    • Biomaterials Science
    • Clinical Outcomes Research

    Background:

    • The Magovern-Harken valve is a specific type of prosthetic heart valve.
    • Continuous suture techniques are employed for valve implantation.
    • Long-term outcomes of prosthetic valves are crucial for patient management.

    Purpose of the Study:

    • To report the 5-year experience with the Magovern-Harken disc valve in 100 patients.
    • To analyze factors influencing operative and late mortality.
    • To assess the incidence of thromboembolic complications and valve-related issues.

    Main Methods:

    • Prospective evaluation of 100 patients receiving the Magovern-Harken valve.
    • Implantation via continuous suture technique in the atrioventricular position.

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  • Follow-up for 5 years to assess mortality, complications, and valve function.

    • Main Results:

    • Operative mortality was 7%, and late mortality was 8%.
    • Factors like age, pulmonary hypertension, and reoperation did not affect operative mortality.
    • Late mortality was significantly higher in New York Heart Association Class IV patients and those undergoing multiple valve replacements.
    • Thromboembolic complications occurred in 7% of patients; no peribasilar leaks or dehiscences were observed.

    Conclusions:

    • The Magovern-Harken disc valve demonstrates acceptable early and late survival rates.
    • Patient functional status and the extent of valve surgery are critical determinants of long-term outcomes.
    • The valve appears safe regarding peribasilar complications, with a manageable rate of thromboembolic events.