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Related Experiment Videos

Reoperation for prosthetic heart valve replacement.

M J de Bruin, L K Lacquet, S H Skotnicki

    The Thoracic and Cardiovascular Surgeon
    |February 1, 1986
    PubMed
    Summary

    Reoperations for prosthetic heart valve replacement (PVR) had a 15.8% early mortality rate, influenced by factors like prosthesis type, patient condition, and surgical urgency. Mechanical valves and non-elective surgeries showed higher risks.

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    Area of Science:

    • Cardiovascular Surgery
    • Biomaterials Science
    • Clinical Outcomes Research

    Background:

    • Prosthetic heart valves are crucial for treating valvular heart disease.
    • Reoperations for prosthetic valve failure or complications present unique challenges.
    • Understanding risk factors in prosthetic valve reoperations is vital for improving patient outcomes.

    Purpose of the Study:

    • To analyze the outcomes and identify risk factors associated with reoperations for prosthetic heart valve replacement (PVR).

    Main Methods:

    • Retrospective review of 847 heart valve replacement operations between 1974 and 1984.
    • Analysis of 43 PVR procedures on 38 patients, including types of prostheses, indications for reoperation, and patient demographics.
    • Statistical analysis of early postoperative mortality and various risk factors.

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    Main Results:

    • The overall early mortality for PVR was 15.8% (6/38 patients).
    • Higher mortality was observed with mechanical prosthesis replacement (22%) versus bioprosthesis (7%), and for non-elective (23%) versus elective (6%) operations.
    • Indications for PVR included endocarditis (39%), prosthesis failure (34%), and periprosthetic leak (18%).
    • Patient functional class (NYHA IV: 26%), longer cross-clamp times (>2 hours: 24%), and prior valve operations (43%) were associated with increased mortality.

    Conclusions:

    • Prosthetic heart valve reoperations carry significant early mortality risk.
    • Mechanical prostheses, endocarditis, prosthesis failure, and patient comorbidities are key risk factors.
    • Improvements in surgical timing, prosthesis selection, and management of complications may reduce reoperation mortality.