Why the study?
Whether tricuspid valve repair should be performed during degenerative mitral valve repair in patients with less than moderate regurgitation remains controversial.
Does concomitant tricuspid valve repair prevent the development of moderate tricuspid regurgitation in patients with less than moderate tricuspid regurgitation undergoing degenerative mitral valve repair?
Population
541 patients with less than moderate TR undergoing mitral valve repair for degenerative mitral disease
Comparison
Concomitant TV repair vs no TV repair
Design
Propensity score-matched cohort study
Follow-up
Median 8 years
Key result
Concomitant tricuspid valve repair during degenerative mitral valve surgery for less than moderate tricuspid regurgitation did not significantly reduce the development of moderate tricuspid regurgitation (HR 0.323) but increased the risk of new-onset atrial fibrillation.
Authors
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Concomitant TV repair was associated with no TR benefit but higher AF risk; should not change practice and leaves open need for RCTs.
Cohort (n=541)
No
Does concomitant tricuspid valve repair prevent the development of moderate tricuspid regurgitation in patients with less than moderate tricuspid regurgitation undergoing degenerative mitral valve repair?
Effect estimate: HR 0.323 (95% CI 0.093-1.127)
Absolute Event Rate: 1% vs 3.9%
p-value: p=0.125
Concomitant tricuspid valve repair during degenerative mitral valve surgery for less than moderate TR does not prevent future TR progression and increases the risk of new-onset atrial fibrillation.
Du et al. (2025) conducted a cohort in Degenerative mitral disease with less than moderate tricuspid regurgitation (n=541). Concomitant tricuspid valve repair vs. No tricuspid valve repair was evaluated on Development of moderate tricuspid regurgitation (HR 0.323, 95% CI 0.093-1.127, p=0.125). Concomitant tricuspid valve repair during degenerative mitral valve surgery for less than moderate tricuspid regurgitation did not significantly reduce the development of moderate tricuspid regurgitation (HR 0.323) but increased the risk of new-onset atrial fibrillation.