Surgery Today

, Volume 29, Issue 6, pp 573–574 | Cite as

Extended survival of a porcine mitral bioprosthesis for 23 years: Report of a case

  • Toshio Baba
  • Kiyofumi Morishita
  • Hiroki Sato
  • Akihiko Yamauchi
  • Takuro Obama
  • Tomio Abe
Case Reports
  • 17 Downloads

Abstract

Limited durability is the major drawback of bioprosthetic valves, few of which survive for as long as 20 years. We report herein the case of a patient we recently encountered in whom a bioprothesis lasted for 23 years. To our knowledge, this is only the second case of such long survival. The patient was a 56-year-old man who was urgently admitted to our hospital with acute mitral regurgitation, 23 years after undergoing mitral valve replacement with a porcine bioprosthesis. Acute leaflet tears were found to be the cause of the mitral incompetence and the xenograft was successfully replaced with a mechanical valve. We believe that when reoperation is thought to carry a low risk, prophylactic surgery might be justified, even in patients without symptoms.

Key Words

mitral bioprosthesis extended survival 

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Copyright information

© Springer-Verlag 1999

Authors and Affiliations

  • Toshio Baba
    • 1
  • Kiyofumi Morishita
    • 1
  • Hiroki Sato
    • 1
  • Akihiko Yamauchi
    • 1
  • Takuro Obama
    • 1
  • Tomio Abe
    • 1
  1. 1.Department of Thoracic and Cardiovascular SurgerySapporo Medical University School of MedicineSapporoJapan

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