Why the study?
Does the convexo-concave model of the Björk-Shiley prosthesis improve in vitro flow dynamics compared to the standard model?
Population
In vitro model testing 21, 23, 25, 27, 29, and 31 mm prosthetic valves using a water-glycerin mixture as a…
Comparison
Convexo-concave model of the Björk-Shiley… vs Standard model of the Björk-Shiley tilting disc…
Design
Preclinical
Authors
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Does not support clinical adoption of convexo-concave Björk-Shiley valves; leaves open whether hemodynamic gains translate to human outcomes.
Does the convexo-concave model of the Björk-Shiley prosthesis improve in vitro flow dynamics compared to the standard model?
The convexo-concave Björk-Shiley prosthesis demonstrates improved in vitro flow dynamics, including decreased resistance and reduced regurgitation, compared to the standard model.
Åberg et al. (1979) studied this question.
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