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[Late results after mitral valve replacement].

K Nakano1

  • 1Department of Cardiovascular Surgery, Kanto Medical Center NTT E.C., Tokyo, Japan.

Nihon Geka Gakkai Zasshi
|May 10, 2001
PubMed
Summary
This summary is machine-generated.

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Mitral valve replacement (MVR) options are reviewed, with new bileaflet valves showing similar performance to the St. Jude Medical (SJM) valve. Chorda-preserving MVR techniques offer improved left ventricular function, enhancing patient outcomes.

Area of Science:

  • Cardiovascular Surgery
  • Prosthetic Valve Technology
  • Biomaterials Science

Context:

  • Review of recent advancements in mitral valve replacement (MVR).
  • Availability of multiple bileaflet prosthetic valves in Japan, including the St. Jude Medical (SJM) valve.
  • Comparison of clinical performance between different prosthetic valve types.

Purpose:

  • To discuss current topics and clinical performance data in mitral valve replacement.
  • To inform the selection of prosthetic valves based on recent evidence.
  • To highlight the benefits of chorda-preserving MVR techniques.

Summary:

  • Bileaflet prosthetic valves, including newer options, demonstrate comparable clinical performance to the SJM valve, with low rates of thromboembolism (

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  • Bioprosthetic valves show varying degrees of freedom from structural valve deterioration (SVD) over time (e.g., Carpentier-Edwards pericardial and Hancock II porcine valves).
  • Chorda-preserving MVR is associated with superior left ventricular function compared to conventional MVR, with ongoing research into chordal preservation methods.

    • Impact:

    • Informed patient consent is crucial for selecting the most appropriate prosthetic valve based on current data.
    • Chorda-preserving MVR represents a significant improvement in preserving cardiac function post-replacement.
    • Further research into chordal preservation techniques may lead to even better surgical outcomes.