Key result
In an ex vivo mock loop, Trifecta showed lower pressure drop and greater effective orifice area at stroke volumes of 30-60 ml, but Mitroflow slightly outperformed Trifecta at higher stroke volumes.
Why the study?
Does the Trifecta bioprosthesis improve hydrodynamic performance compared to the Mitroflow bioprosthesis in an ex vivo model of small aortic roots?
Population
Ex vivo pulsatile mock loop model simulating small aortic roots
Comparison
Trifecta bioprosthesis vs Mitroflow bioprosthesis
Design
Preclinical
Authors
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May guide valve selection by stroke volume in small roots; leaves open clinical translation pending in vivo data.
Does the Trifecta bioprosthesis improve hydrodynamic performance compared to the Mitroflow bioprosthesis in an ex vivo model of small aortic roots?
The hydrodynamic performance of bioprostheses in small aortic roots depends on complex geometric behaviors at different stroke volumes, not just internal diameter.
Tasca et al. (2017) studied Small Aortic Roots. Trifecta bioprosthesis vs. Mitroflow bioprosthesis was evaluated on Hydrodynamic behavior (pressure drop, energy dissipation, valve resistance, effective orifice area). In an ex vivo mock loop, Trifecta showed lower pressure drop and greater effective orifice area at stroke volumes of 30-60 ml, but Mitroflow slightly outperformed Trifecta at higher stroke volumes.
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