Key result
Complete preservation of the subvalvular apparatus during mitral valve replacement significantly reduced early postoperative mortality compared to posterior preservation (RR 0.59).
Why the study?
Does mitral valve replacement with complete preservation of subvalvular apparatus improve postoperative cardiac function and reduce complications in patients undergoing mitral valve replacement?
Meta-Analysis (n=3,468)
Yes
Does mitral valve replacement with complete preservation of subvalvular apparatus improve postoperative cardiac function and reduce complications in patients undergoing mitral valve replacement?
Complete preservation of the subvalvular apparatus during mitral valve replacement is associated with better long-term left ventricular function and lower early mortality compared to preserving only the posterior apparatus.
Supports complete subvalvular preservation as standard in mitral valve replacement; extends meta-analytic evidence for better LV remodeling and lower early mortality.
There is no significant difference in after postoperative cardiac function in the short term after mitral valve replacement with complete preservation of subvalvular apparatus versus posterior subvalvular.
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Aiming et al. (2019) conducted a meta-analysis in Valvular disease requiring mitral valve replacement (n=3,468). Mitral valve replacement with complete preservation of subvalvular apparatus vs. Mitral valve replacement with preservation of posterior subvalvular apparatus was evaluated on Early postoperative mortality (RR 0.59, 95% CI 0.39, 0.91, p=0.02). Complete preservation of the subvalvular apparatus during mitral valve replacement significantly reduced early postoperative mortality compared to posterior preservation (RR 0.59).
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