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 reduce residual mitral regurgitation in patients with mitral regurgitation?
Population
36 patients undergoing mitral valve repair for mitral regurgitation
Comparison
Mitral valve ring annuloplasty vs pre-operative state
Design
Observational case series
Authors
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May support annuloplasty to improve coaptation and lessen residual MR; leaves open need for prospective validation.
Observational (n=36)
Does mitral valve ring annuloplasty improve mitral valve leaflet morphology and reduce residual mitral regurgitation in patients with mitral regurgitation?
Mitral valve ring annuloplasty increases the coaptation length index, which correlates negatively with residual mitral regurgitation.
Yamauchi et al. (2004) conducted an observational in Mitral regurgitation (n=36). Mitral valve ring annuloplasty vs. Pre-operative baseline was evaluated on Coaptation length index (CLI). Mitral valve ring annuloplasty significantly increased the coaptation length index (from 0.16 to 0.44), which had a significant negative correlation with the degree of residual mitral regurgitation.
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