Complete detachment of an aortic valve prosthesis 10 years after implantation

P Grubwieser1, M Pavlic, D Hoefer

  • 1Institute of Legal Medicine, University of Innsbruck, Muellerstrasse 44, 6020, Innsbruck, Austria. petra.grubwieser@uibk.ac.at

Insights

A patient experienced sudden death 10 years after aortic valve replacement due to a detached Carbomedics heart valve prosthesis. Autopsy revealed chronic endocarditis at the implantation site, suggesting a late complication of the artificial heart valve.

Area of Science:

  • Cardiovascular Surgery
  • Infectious Diseases
  • Pathology

Background:

  • Aortic valve stenosis secondary to endocarditis necessitates prosthetic valve replacement.
  • Carbomedics mechanical valves are commonly used for aortic valve replacement.
  • Long-term complications of prosthetic heart valves require ongoing monitoring.

Observation:

  • A 47-year-old male with a history of endocarditis underwent aortic valve replacement with a Carbomedics prosthesis.
  • Ten years post-surgery, the patient presented with hemolytic anemia and later experienced sudden collapse and death.
  • Clinical evaluations did not indicate recurrent endocarditis prior to death.

Findings:

  • Autopsy revealed complete detachment of the Carbomedics aortic valve prosthesis from the ascending aorta.
  • Histological examination confirmed chronic endocarditis at the valve implantation site.
  • The detached prosthesis and associated endocarditis were the likely cause of death.

Implications:

  • This case highlights the potential for late-stage prosthetic valve detachment due to chronic endocarditis.
  • It underscores the importance of vigilant long-term surveillance for patients with mechanical heart valves.
  • Further research into the mechanisms of late prosthetic valve failure is warranted.