Key result
Stentless porcine aortic bioprostheses are linked to ~72% fewer total complications versus stented valves.
Why the study?
The comparative hemodynamic performance, structural failure, and survival outcomes of stented versus stentless porcine aortic bioprostheses in AVR patients were not well established.
Does a stentless porcine aortic bioprosthesis improve hemodynamic performance, structural failure, and survival compared to a stented bioprosthesis in patients undergoing aortic valve replacement?
Comparison
Stented porcine aortic bioprosthesis vs stentless porcine aortic bioprosthesis
Design
Retrospective clinical analysis
Authors
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Does not support changing practice to stentless valves; leaves open need for RCTs to confirm lower complications.
Observational (n=407)
Does a stentless porcine aortic bioprosthesis improve hemodynamic performance, structural failure, and survival compared to a stented bioprosthesis in patients undergoing aortic valve replacement?
Absolute Event Rate: 3.4% vs 12%
p-value: p=0.005
Stentless porcine aortic bioprostheses offer superior hemodynamic performance, lower complication rates, and less structural degeneration compared to stented valves, although overall survival remains similar.
Vrandecic et al. (2000) conducted an observational in Aortic valve replacement (n=407). Stentless porcine aortic bioprosthesis vs. Stented porcine aortic bioprosthesis was evaluated on Total complication rate (p=0.005). Stentless porcine aortic bioprostheses were associated with a lower total complication rate (3.4% vs 12%, P=0.005) and lower valve-related mortality (0% vs 2.5%, P=0.049) compared to stented valves.
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