Why the study?
Does increasing the opening angle of the Björk-Shiley tilting disc valve prosthesis to 70 degrees optimize valve function in patients undergoing valve replacement?
Population
2578 patients undergoing valve replacement at Karolinska Sjukhuset, Stockholm, including a subset of 125…
Design
Cohort
Follow-up
10 years
Authors
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Supports 70° opening for lower turbulence in Björk-Shiley AVR; leaves open randomized confirmation of durability and outcomes.
Does increasing the opening angle of the Björk-Shiley tilting disc valve prosthesis to 70 degrees optimize valve function in patients undergoing valve replacement?
Increasing the opening angle of the Björk-Shiley tilting disc valve to 70 degrees optimizes hemodynamics and reduces wear without causing excessive regurgitation.
Viking Olov Björk (1981) studied this question.
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