Key result
Bioprosthetic valves were associated with a higher incidence of prosthetic valve endocarditis than mechanical valves (5.8% vs 1.4%, P<0.005), with antecedent endocarditis further increasing risk.
Why the study?
Does bioprosthetic valve replacement compared to mechanical valve replacement increase the risk of prosthetic valve endocarditis in patients undergoing valve replacement?
Population
912 patients who had valve replacements from 1 January 1981 to 31 December 1985
Comparison
Bioprosthetic valve replacement vs Mechanical valve replacement
Design
Cohort
Follow-up
1-6 (mean 3) years
Authors
Loading...
Supports closer endocarditis surveillance after bioprosthetic valve replacement; extends observational data but leaves causal inference open.
Cohort (n=912)
Does bioprosthetic valve replacement compared to mechanical valve replacement increase the risk of prosthetic valve endocarditis in patients undergoing valve replacement?
Absolute Event Rate: 5.8% vs 1.4%
p-value: p=<0.005
Bioprosthetic valves, aortic position, and antecedent endocarditis are significant risk factors for the development of prosthetic valve endocarditis.
M Lengyel (1988) conducted a cohort in Prosthetic valve endocarditis (n=912). Bioprosthetic valves vs. Mechanical valves was evaluated on Development of prosthetic valve endocarditis (p=<0.005). Bioprosthetic valves were associated with a higher incidence of prosthetic valve endocarditis than mechanical valves (5.8% vs 1.4%, P<0.005), with antecedent endocarditis further increasing risk.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: