Key result
Bioprosthetic valves in the elderly are linked to ~27% less major bleeding vs mechanical valves but higher re-operation.
Why the study?
Guidelines recommend bioprostheses for patients over 65, but both mechanical and biological valves are considered suitable options for patients aged 60 to 65.
Does surgically implanted mechanical aortic prosthesis compared to biological aortic prosthesis improve outcomes in elderly patients?
Meta-Analysis (n=4,120)
Does surgically implanted mechanical aortic prosthesis compared to biological aortic prosthesis improve outcomes in elderly patients?
Odds Ratio: 0.73
p-value: p=<0.001
In elderly patients undergoing surgical aortic valve replacement, bioprosthetic valves are associated with less bleeding and stroke but a higher need for re-operation compared to mechanical valves.
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Comparable mortality supports bioprosthetic preference in elderly SAVR to reduce bleeding; extends meta-analytic trade-off data.
M.D. MOHAMED ABDELMOTTAAL TAWAB MOHAMED T. ELSAYEGH (2023) conducted a meta-analysis in Severe aortic stenosis requiring aortic valve replacement (n=4,120). Biological aortic prosthesis vs. Mechanical aortic prosthesis was evaluated on Major bleeding (OR 0.73, p=<0.001). Bioprosthetic valves in elderly patients were associated with less major bleeding (OR 0.73, p<0.001) and thromboembolism (OR 0.9) but higher re-operation (OR 3.11) vs mechanical valves.
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