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[Repeated heart valve replacements: prognosis and results]
Archives Des Maladies Du Coeur Et Des Vaisseaux
|January 1, 1995
Summary
Reoperation for heart valve replacement carries significant risks, with mortality increasing with each subsequent surgery. However, functional outcomes remain good for most survivors.
Area of Science:
- Cardiology
- Cardiac Surgery
- Medical Prognosis
Context:
- Reoperation for valvular replacement is a complex procedure with limited data on long-term outcomes.
- This study reviews outcomes for 124 patients undergoing 163 reoperations between 1974 and 1992.
- A significant proportion of patients were in advanced functional classes (III/IV) and required emergency surgery.
Purpose:
- To determine the prognosis of reoperation for valvular replacement.
- To identify risk factors influencing mortality and survival rates.
- To evaluate functional outcomes following repeat valve surgery.
Summary:
- Hospital mortality was 21.7% for second, 20% for third, and 55.6% for fourth reoperations.
- Key indications included periprosthetic leakage (28.8%) and bioprosthetic failure (23.7%).
- Actuarial survival was 52% at 5 years and 33% at 10 years, with 41% and 19% survival free of valve complications, respectively.
Impact:
- Operative mortality is significantly influenced by the number of reoperations, patient functional class, and surgical urgency.
- Despite high mortality, over 90% of surviving patients achieved good functional class (I or II) post-reoperation.
- Findings highlight the critical need for careful patient selection and surgical planning in repeat valve replacement procedures.