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Comparison of survival after mitral valve replacement with biologic and mechanical valves in 1139 patients

Y Y Cen1, D D Glower, K Landolfo

  • 1Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA.

The Journal of Thoracic and Cardiovascular Surgery
|September 8, 2001
PubMed

Insights

This study found no significant difference in 10-year survival for patients undergoing mitral valve replacement with biologic versus mechanical prostheses. Valve choice did not impact long-term outcomes in this patient cohort.

Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Biomedical Engineering

Background:

  • Mitral valve replacement is a critical procedure for patients with severe mitral valve disease.
  • The choice between biologic and mechanical valve prostheses involves considerations of durability, anticoagulation, and patient survival.

Purpose of the Study:

  • To compare the 10-year survival rates of patients who underwent mitral valve replacement using either biologic (Carpentier-Edwards) or mechanical (St. Jude Medical) valve prostheses.
  • To identify factors influencing long-term survival after mitral valve replacement.

Main Methods:

  • A retrospective survival analysis was conducted on 1139 adult patients who underwent mitral valve replacement.
  • Data included patients receiving Carpentier-Edwards (biologic) or St. Jude Medical (mechanical) prostheses.
  • Statistical analysis compared 10-year survival between the two prosthesis groups.

Main Results:

  • No statistically significant difference in 10-year survival was observed between the Carpentier-Edwards and St. Jude Medical prosthesis groups (P =.16).
  • Adjusted 10-year survival estimates were 42% ± 3% for Carpentier-Edwards and 51% ± 3% for St. Jude Medical.
  • Factors associated with poorer survival included older age, lower ejection fraction, advanced heart failure, comorbidities (CAD, renal disease), and prior cardiac surgery.

Conclusions:

  • The selection of a biologic or mechanical prosthesis does not significantly impact long-term patient survival following mitral valve replacement.
  • Patient-specific factors and comorbidities are critical determinants of long-term outcomes after mitral valve replacement.
Abstract

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