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Related Experiment Videos

Mitral valve replacement in infants and children

F M Galioto, F M Midgley, S R Shapiro

    Pediatrics
    |February 1, 1981
    PubMed
    Summary

    Mitral valve replacement using heterograft prostheses in children with severe heart failure showed improved growth and symptoms. While operative mortality was 14%, survivors experienced significant clinical benefits, suggesting suitability for pediatric patients.

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    Area of Science:

    • Cardiovascular Surgery
    • Pediatric Cardiology
    • Biomaterials in Medicine

    Background:

    • Congenital and acquired heart lesions in children often lead to severe refractory congestive heart failure and growth retardation.
    • Mitral valve replacement is a critical intervention for pediatric patients with advanced cardiac disease.
    • Heterograft prostheses offer an alternative to mechanical valves, avoiding the need for long-term anticoagulation.

    Purpose of the Study:

    • To evaluate the efficacy and outcomes of mitral valve replacement with heterograft prostheses in pediatric patients.
    • To assess the impact of this procedure on clinical improvement, growth, and survival rates in young patients.
    • To compare heterograft prostheses with mechanical valves in the pediatric population.

    Main Methods:

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    • Retrospective analysis of 14 mitral valve replacement operations using heterograft prostheses in 13 pediatric patients (10 months to 19 years).
    • Preoperative assessment included evaluation of congestive heart failure and growth retardation.
    • Postoperative follow-up included clinical assessment and routine catheterization in select patients.

    Main Results:

    • Operative mortality was 14% (2/14), with deaths in patients under 6 years old.
    • All surgical survivors demonstrated significant clinical improvement, including symptom relief, decreased heart size, and enhanced growth.
    • Postoperative catheterization revealed good initial results; one patient experienced prosthesis degeneration requiring reoperation.

    Conclusions:

    • Mitral valve replacement with heterograft prostheses can be successfully performed in infants and small children with refractory congestive heart failure and growth retardation.
    • Heterograft prostheses are preferred over mechanical valves in children due to the absence of thromboembolism complications and the lack of need for anticoagulation.
    • Early surgical intervention is recommended for pediatric patients with progressive heart disease, rather than postponing surgery for growth.