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Related Experiment Videos

[Tricuspid valve replacement by Hancock's prosthesis].

J P Delahaye, D Rondepierre, P Gaspard

    Archives Des Maladies Du Coeur Et Des Vaisseaux
    |March 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

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    Hancock bioprosthesis offers satisfactory resting tricuspid valve function, with improved patient functional status post-operation. However, exercise-induced stenosis and long-term bioprosthesis uncertainty warrant limiting use to severe cases.

    Area of Science:

    • Cardiology
    • Cardiac Surgery
    • Biomaterials Science

    Context:

    • Tricuspid valve disease often requires surgical intervention.
    • Bioprosthetic valves are an alternative to mechanical valves.
    • Evaluating medium-term outcomes of tricuspid valve replacement is crucial for clinical decision-making.

    Purpose:

    • To report the medium-term results of tricuspid valve replacement using the Hancock bioprosthesis.
    • To assess functional status, cardiac size, and hemodynamics after surgery.
    • To evaluate the safety and efficacy of Hancock bioprosthesis in tricuspid valve replacement.

    Summary:

    • Twenty-eight patients underwent tricuspid valve replacement with Hancock bioprosthesis, often combined with mitral and aortic valve replacements.
    • Follow-up averaged 36.2 months, showing significant improvement in New York Heart Association functional class (III/IV to I/II).

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  • Hemodynamic assessment revealed increased cardiac index without significant changes in pulmonary artery or right atrial pressures. Resting gradients were low, but exercise gradients were high.

    • Impact:

    • Tricuspid valve replacement with Hancock bioprosthesis demonstrates acceptable operative mortality and functional improvement.
    • High exercise gradients and long-term bioprosthesis durability concerns suggest selective use in severe tricuspid stenosis or regurgitation.
    • This study contributes to understanding the medium-term performance of Hancock bioprostheses in tricuspid valve replacement.