[Long-term results and prognostic factors after mitral valve replacement using the Starr-Edwards 6120 prosthesis]

Area of Science:

• Cardiovascular Surgery
• Biomaterials Science
• Clinical Outcomes Research

Context:

• Mitral valve replacement is a critical procedure for severe valvular heart disease.
• The SE 6120 prosthesis was utilized in 386 patients between 1970 and 1984.
• Long-term follow-up data is essential for evaluating prosthetic valve performance and patient survival.

Purpose:

• To evaluate the long-term survival, complication rates, and functional outcomes following mitral valve replacement with the SE 6120 prosthesis.
• To identify prognostic factors influencing patient survival and post-operative complications.
• To assess the durability and safety of the SE 6120 prosthesis over an extended follow-up period.

Summary:

• A total of 386 mitral valve replacements using the SE 6120 prosthesis were analyzed with a mean follow-up of 75 months (2520 patient-years).
• Five-year and 10-year actuarial survival rates were 80% and 67%, respectively. The incidence of prosthesis-related complications was 4.16 per 100 patient-years.
• Prognostic factors identified included age and NYHA stage. At 8 years post-operation, 79% of survivors were symptom-free, though 52 patients had poor myocardial response.

Impact:

• This study provides crucial long-term data on the performance of the SE 6120 mitral valve prosthesis, informing clinical decision-making.
• Identified prognostic factors can aid in patient selection and risk stratification for mitral valve replacement.
• The findings contribute to the understanding of prosthetic valve durability and the long-term quality of life for patients undergoing this procedure.