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Updated: Jun 19, 2026

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
Long-term outcomes of pulmonary valve replacement in adolescents and adults: A nationwide population-based study
Jae Hong Lim1, Sungkyu Cho2, Jae Woong Choi2
1Department of Thoracic and Cardiovascular Surgery, Bucheon Sejong General Hospital, Bucheon, Republic of Korea.
Objective:
A study using the National Health Insurance Service database compared bioprosthetic and mechanical pulmonary valve replacement clinical results.
Methods:
Total of 1586 patients underwent pulmonary valve replacement from 2003 to 2021 and 1295 patients were enrolled after excluding those with previous aortic valve replacement and aged less than 13 years at operation. Bioprostheses (group B) and mechanical prostheses (group M) were used in 1085 patients (83.8 %) and 210 patients (16.2 %), respectively. Propensity score matching was performed. Sub-group analysis was performed in group B based on the materials (bovine vs. porcine).
Results:
The mean age in group B and group M was 28.4 ± 14.5 and 33.9 ± 14.6 years old. There were no differences in operative mortality (p = 0.485) or postoperative complications (p = 0.573) between the groups. After matching, the cumulative incidence of infective endocarditis was lower in group B (p = 0.047). In the sub-group analysis in group B, the porcine group tended to lower reoperation rate compared to the bovine group. (before matching, p = 0.026; after matching p = 0.083).
Conclusions:
Bioprostheses are favorable compared to mechanical prostheses due to its low complications and the avoidance of anticoagulation. Further studies with longer follow-up duration might be needed to analyze long term outcomes between bovine and porcine valves.
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