Thorac Cardiovasc Surg
DOI: 10.1055/a-2505-8447
Original Cardiovascular

Comparison of Long-Term Performance of Porcine versus Pericardial Bioprostheses

Amedeo Anselmi
1   Division of Thoracic and Cardiovascular Surgery, CHU de Rennes, Rennes, Bretagne, France
,
Morgan Daniel
1   Division of Thoracic and Cardiovascular Surgery, CHU de Rennes, Rennes, Bretagne, France
,
Marie Aymami
1   Division of Thoracic and Cardiovascular Surgery, CHU de Rennes, Rennes, Bretagne, France
,
Celine Chabanne
1   Division of Thoracic and Cardiovascular Surgery, CHU de Rennes, Rennes, Bretagne, France
,
Sebastien Rosier
2   Division of Cardiac Anesthesia, Centre Hospitalier Universitaire de Rennes Site de Pontchaillou, Rennes, Bretagne, France
,
Julien Mancini
3   UMR1252 SESSTIM Research Unit, Biostatistics Department, Aix-Marseille University, Marseille, Provence-Alpes-Côte d'Azu, France
,
Jean Philippe Verhoye
1   Division of Thoracic and Cardiovascular Surgery, CHU de Rennes, Rennes, Bretagne, France
› Institutsangaben
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Abstract

Background The long-term comparative results between porcine and pericardial bioprostheses for surgical aortic valve replacement (SAVR) are debated. Scarce information exists concerning direct comparative evaluation among contemporary devices. We compared late and very late results in a single center series (n = 3,983 cases).

Methods From a prospectively collected database we included 3,983 recipients of two current porcine bioprostheses (porcine group) or one current pericardial bioprosthesis (pericardial group). We evaluated the long-term freedom from structural valve deterioration (SVD) with both Kaplan–Meier and competing risk methods (primary endpoint). We distinguished between SVD and patient-prosthesis mismatch (PPM). Secondary endpoints were late survival, freedom from valve-related mortality, freedom from reoperation for SVD, freedom from nonstructural valve dysfunction (NSVD) and freedom from endocarditis.

Results Median follow-up was 10.4 years (99.7% complete, 32,219 patients/years). Overall survival was significantly lower in the porcine group (p = 0.002), related to baseline intergroup differences. At 10 years, Kaplan–Meier freedom from SVD was significantly better in the porcine group (98.0% ± 0.3 vs. 96.3% ± 0.8; p = 0.003). Competing risk freedom from SVD at 10 years was 98.6% ± 0.2 and 97.2% ± 0.6 (porcine and pericardial group, respectively; p = 0.001). The porcine group displayed a higher rate of PPM.

Conclusion Despite the augmented risk of PPM compared with pericardial valves, in this series porcine bioprostheses seem to perform better concerning protection from late (>10 years) SVD. Smaller valve sizes (19–21 mm) may negatively impact the SVD risk among porcine valves but not among pericardial valves. These elements need to be considered for valve choice and surgical strategy in SAVR candidates according to their life expectancy, clinical context, and annulus size.

Supplementary Material



Publikationsverlauf

Eingereicht: 24. August 2024

Angenommen: 17. Dezember 2024

Accepted Manuscript online:
07. Januar 2025

Artikel online veröffentlicht:
05. Februar 2025

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