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Related Experiment Videos

Experience with the Mitroflow aortic bioprosthesis

R A Moggio1, R W Pooley, M R Sarabu

  • 1Westchester County Medical Center, New York Medical College, Valhalla 10595.

The Journal of Thoracic and Cardiovascular Surgery
|August 1, 1994
PubMed
Summary
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The Mitroflow bovine pericardial valve shows favorable hemodynamics in aortic valve replacement. Durability may decline after six years, potentially slower in patients over 70.

Area of Science:

  • Cardiovascular Surgery
  • Biomaterials Science
  • Clinical Outcomes Research

Background:

  • The Mitroflow bovine pericardial valve is a common choice for aortic valve replacement.
  • Understanding its long-term performance and durability is crucial for patient management.
  • Previous studies have indicated potential limitations in the durability of bioprosthetic valves.

Purpose of the Study:

  • To evaluate the clinical performance and durability of the Mitroflow bovine pericardial valve in the aortic position.
  • To assess hemodynamic function, survival rates, and complication incidence.
  • To identify factors influencing valve durability and patient outcomes.

Main Methods:

  • A retrospective study of 168 patients who received the Mitroflow valve between October 1985 and May 1990.

Related Experiment Videos

  • Follow-up data collected over 7.5 years, totaling 781 patient-years.
  • Analysis included hemodynamic measurements, mortality, thromboembolic events, endocarditis, valve dysfunction, and reoperations.

    • Main Results:

    • Favorable intraoperative peak-to-peak gradients were observed across different valve sizes.
    • Hospital mortality was 7.3%, with late mortality at 20.1% primarily due to non-valve-related causes.
    • Durability decline was noted after six years, with a potentially slower rate in patients aged 70 and older. Survival at 94 months was 64%.

    Conclusions:

    • The Mitroflow bovine pericardial valve demonstrates favorable hemodynamics for aortic valve replacement.
    • Valve durability may decrease after six years, with outcomes potentially better in older patients.
    • Long-term monitoring is essential to manage potential structural deterioration and associated complications.