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Related Experiment Videos

Early experience with a quadrileaflet stentless mitral valve.

B Hofmann1, R Cichon, M Knaut

  • 1Cardiovascular Institute, University of Dresden, Germany.

The Annals of Thoracic Surgery
|June 5, 2001
PubMed
Summary

The St. Jude Medical SJM-Quattro-MV bioprosthesis shows promising results for mitral valve replacement, offering good clinical outcomes and favorable hemodynamics in early patient experiences.

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Area of Science:

  • Cardiovascular Surgery
  • Bioprosthetic Devices
  • Cardiac Valve Replacement

Background:

  • No ideal mitral valve replacement prosthesis currently exists.
  • The SJM-Quattro-MV is a novel chordally supported, stentless bioprosthesis.
  • Its unique geometry suggests suitability for mitral valve replacement.

Purpose of the Study:

  • To evaluate the preliminary clinical outcomes of the SJM-Quattro-MV bioprosthesis.
  • To assess the hemodynamic performance of the SJM-Quattro-MV in patients undergoing mitral valve replacement.

Main Methods:

  • Twelve patients (mean age 71 years) with mitral valve stenosis or incompetence received the SJM-Quattro-MV.
  • Preoperative assessment included New York Heart Association functional class III and left ventricular ejection fraction.

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  • Follow-up was conducted at 11.6 months.

    • Main Results:

    • One procedure-related mortality occurred; all other patients were well at follow-up.
    • Mean transvalvular pressure gradient was 5.0 mm Hg, with an effective orifice area of 2.7 cm².
    • Additional procedures included coronary artery bypass grafting and microwave ablation.

    Conclusions:

    • Preliminary findings indicate good clinical results with the SJM-Quattro-MV.
    • The SJM-Quattro-MV demonstrates optimistic potential for future mitral valve prosthesis development.