Key result
Tissue valves link to lower 5-year treatment failure versus mechanical valves but similar 10-year outcomes.
Why the study?
Does the use of tissue valves compared to mechanical valves reduce patient-oriented treatment failure in patients undergoing heart valve replacement?
Population
Patients undergoing heart valve replacement at three institutions (Oregon, Stanford, Vancouver)
Comparison
Tissue valves vs Mechanical valves
Design
Cohort
Follow-up
up to 10 years
Authors
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Tissue valves may reduce early patient-oriented treatment failure; leaves open whether RCTs will confirm long-term equivalence in aortic or mitral positions.
Observational
Yes
Does the use of tissue valves compared to mechanical valves reduce patient-oriented treatment failure in patients undergoing heart valve replacement?
When evaluating valve replacement using a patient-oriented definition of treatment failure rather than just structural failure, tissue valves demonstrate early superiority and comparable or slightly better long-term outcomes compared to mechanical valves.
Çobanoğlu et al. (1987) conducted an observational in Valve replacement. Tissue valves vs. Mechanical valves was evaluated on Treatment failure (valve-related death or permanent patient disability). Tissue valves were superior to mechanical valves for treatment failure at 5 years, comparable at 10 years in the aortic position, and showed a small advantage at 8-10 years in the mitral position.
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