Key result
Significant mitral regurgitation after percutaneous mitral valvuloplasty was associated with a lower 8-year event-free survival rate compared to no significant MR (47% vs 83%, P<0.001).
Why the study?
Does the mechanism of significant mitral regurgitation after percutaneous mitral valvuloplasty affect long-term event-free survival and the need for mitral valve replacement?
Population
380 patients who underwent percutaneous mitral valvuloplasty with the Inoue balloon technique between 1995…
Comparison
Development of significant mitral regurgitation… vs Patients without significant MR after PMV, and…
Design
Cohort
Follow-up
8 years
Authors
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Significant post-PMV MR warrants closer surveillance; mechanism may modify prognosis and MVR risk, requiring prospective confirmation.
Cohort (n=380)
Does the mechanism of significant mitral regurgitation after percutaneous mitral valvuloplasty affect long-term event-free survival and the need for mitral valve replacement?
Absolute Event Rate: 47% vs 83%
p-value: p=<0.001
The clinical course of significant mitral regurgitation after percutaneous mitral valvuloplasty depends heavily on its mechanism, with commissural MR having a more benign long-term course and lower need for valve replacement compared to noncommissural MR.
Kim et al. (2006) conducted a cohort in Significant mitral regurgitation after percutaneous mitral valvuloplasty (n=380). Significant mitral regurgitation vs. No significant mitral regurgitation was evaluated on 8-year event-free survival (p=<0.001). Significant mitral regurgitation after percutaneous mitral valvuloplasty was associated with a lower 8-year event-free survival rate compared to no significant MR (47% vs 83%, P<0.001).
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