Key result
Mitral valve re-repair shows similar operative mortality and long-term outcomes compared to replacement after failed repair.
Why the study?
The optimal treatment strategy following a failed mitral valve repair remains unclear.
Does mitral valve re-repair improve clinical outcomes compared to mitral valve replacement in patients with a failed initial mitral valve repair?
Meta-Analysis (n=1,632)
Does mitral valve re-repair improve clinical outcomes compared to mitral valve replacement in patients with a failed initial mitral valve repair?
Odds Ratio: 0.69 (95% CI 0.4–1.2)
p-value: p=0.19
Mitral valve re-repair is a viable alternative to replacement for failed initial repair, demonstrating similar post-operative outcomes and potentially lower risk of postoperative atrial fibrillation.
Supports re-repair as viable option after failed mitral repair; extends pooled evidence for valve preservation in reoperations.
Background The optimal treatment strategy following a failed mitral valve repair remains unclear. This study aims to compare and analyse available studies which report the clinical outcomes post mitral valve re-repair (MVr) or replacement (MVR) after a prior mitral valve repair. Methods Based on PRISMA guidelines, a literature search was performed utilising PubMed, Cochrane and Scopus databases to identify retrospective cohort studies that reported outcomes of MVr and MVR after a prior mitral valve repair. Data regarding operative mortality, clinical outcomes and complications were extracted, synthesized and meta-analysed where appropriate. Results Eight studies with a total cohort of 1632 patients were used. After analysis, no significant differences in the short term and long-term operative mortality, incidence of stroke, congestive heart failure, Grade 1 and Grade 2 mitral regurgitation, requirement of 3rd mitral valve operation and reoperation due bleeding were found between the two groups. However, a slightly higher incidence of postoperative atrial fibrillation (OR: 0.11, CI: 0.02 to 0.17, I2 = 0%, p = 0.02) was observed in the MVR group, as compared to the MVr group. Conclusion MVr appears to be a viable alternative to MVR for mitral valve reoperation, given that they are associated with similar post-operative outcomes.
No takes yet. Share an insight, caveat, or question.
Veerappan et al. (2020) conducted a meta-analysis in Failed initial mitral valve repair (n=1,632). Mitral valve re-repair vs. Mitral valve replacement was evaluated on Short-term operative mortality (OR 0.69, 95% CI 0.40 to 1.20, p=0.19). Mitral valve re-repair demonstrated similar short-term operative mortality (OR 0.69) and long-term outcomes compared to mitral valve replacement following a failed initial repair.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: