Key result
Mitral valve ring annuloplasty linked to ~175% higher coaptation length index, correlating with less residual MR.
Why the study?
Information on mitral valve leaflet morphology after mitral valve reconstruction is limited in clinical settings.
Does mitral valve ring annuloplasty improve mitral valve leaflet morphology and coaptation length index in patients with mitral regurgitation?
Population
36 patients undergoing mitral valve repair for mitral regurgitation
Comparison
Mitral valve ring annuloplasty vs pre-operative baseline
Design
Observational case series
Authors
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Should not change mitral regurgitation management; leaves open whether coaptation index gains reduce residual regurgitation.
Observational (n=36)
Does mitral valve ring annuloplasty improve mitral valve leaflet morphology and coaptation length index in patients with mitral regurgitation?
Mitral valve ring annuloplasty significantly increases the coaptation length index, which correlates negatively with residual mitral regurgitation.
Yamauchi et al. (2005) conducted an observational in Mitral regurgitation (n=36). Mitral valve ring annuloplasty vs. Pre-operative baseline was evaluated on Coaptation length index (CLI) and residual mitral regurgitation. Mitral valve ring annuloplasty significantly increased the coaptation length index (from 0.16 to 0.44), which negatively correlated with the degree of residual mitral regurgitation.
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