Key result
Mechanical valves linked to ~36% lower mortality vs bioprostheses in dialysis patients undergoing AVR, not MVR.
Why the study?
The optimal selection of prosthetic heart valve for dialysis-dependent patients remains controversial.
Does mechanical prosthesis improve long-term survival compared to bioprosthesis in dialysis-dependent patients undergoing aortic or mitral valve replacement?
Population
10,164 dialysis-dependent patients undergoing aortic or mitral valve replacement
Comparison
Mechanical prosthesis vs bioprosthesis
Design
Meta-analysis of 24 retrospective studies
Authors
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MP may favor AVR over MVR in dialysis patients; leaves open need for RCTs to guide valve selection.
Meta-Analysis (n=10,164)
Does mechanical prosthesis improve long-term survival compared to bioprosthesis in dialysis-dependent patients undergoing aortic or mitral valve replacement?
Hazard Ratio: 0.64 (95% CI 0.47–0.86)
In dialysis-dependent patients, mechanical prostheses are associated with better long-term survival for aortic valve replacement, while bioprostheses may be more appropriate for mitral valve replacement.
Chi et al. (2020) conducted a meta-analysis in Dialysis-dependent patients requiring heart valve replacement (n=10,164). Mechanical prosthesis vs. Bioprosthesis was evaluated on Long-term survival (aortic valve replacement) (HR 0.64, 95% CI 0.47-0.86). Mechanical prostheses were associated with better long-term survival than bioprostheses in dialysis patients undergoing aortic valve replacement (HR 0.64; 95% CI 0.47-0.86), but not mitral replacement.
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