Abstract
The second-generation Carpentier-Edwards bioprostheses, the supra-annular porcine valve and the PERIMOUNT pericardial valve, have been evaluated longitudinally for several years. This study compared clinical performance over 15 years. Aortic valve replacement was performed with a supra-annular porcine valve in 1,823 patients (group 1) aged 19–89 years (mean, 68.9 ± 10.9 years) and with a PERIMOUNT pericardial bioprosthesis in 1,430 patients (group 2) aged 16–90 years (mean, 69.5 ± 10.4 years). The groups were similar except for concomitant coronary artery bypass in 43% of group 1 and 18% of group 2 (p < 0.001). Overall survival at 15 years was 29.3% ± 1.5% for group 1 and 35.2% ± 3.1% for group 2 (p = 0.0009). The actual freedom from valve-related mortality was 88.5% ± 0.9% for group 1 and 84.9% ± 1.7% for group 2. The actual freedom from structural valve deterioration at 15 years was similar overall, and for patients aged > 60 years, between the groups, but was dissimilar (group 2 > group 1) for age ≤ 60 years. The predictors of structural valve deterioration were valve type (group 1 > group 2), sex (male > female), age, and concomitant coronary artery bypass. Both bioprostheses provided satisfactory clinical performance at 15 years after aortic valve replacement.
Get full access to this article
View all access options for this article.