Key result
In vitro testing of eight biological valves revealed leaflet oscillations around 200 Hz with 0.4 mm amplitudes, with bovine pericardial valves demonstrating superior performance to porcine valves.
Population
8 biological cardiac valves (porcine or bovine pericardium) tested on a bench simulating heart flow
Comparison
High-speed camera filming at 2000 frames per… vs Porcine vs bovine pericardial valves, and…
Design
Preclinical
Authors
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Flutter quantification enables targeted valve design studies; hypothesis-generating for durability gains pending clinical validation.
A new method to quantify leaflet flutter in bioprosthetic valves revealed that bovine pericardial valves exhibit superior performance compared to porcine valves, providing a tool to predict flutter and potentially maximize valve lifespan.
Avelar et al. (2016) studied Biological prosthetic cardiac valves (n=8). Bovine pericardial valves vs. Porcine valves was evaluated on Flutter frequencies and amplitudes. In vitro testing of eight biological valves revealed leaflet oscillations around 200 Hz with 0.4 mm amplitudes, with bovine pericardial valves demonstrating superior performance to porcine valves.
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