AI Article Synopsis

  • Mitral valve repair for adults with advanced rheumatic disease shows improved long-term durability, with reoperation rates comparable to those for degenerative disease.
  • In a study involving 253 rheumatic and 148 degenerative repairs, freedom from reoperation at 10 years was 98.4% for rheumatic valves, similar to 95.3% for degenerative ones.
  • Significant predictors of poor outcomes included residual mitral regurgitation and specific leaflet procedures, indicating that careful surgical techniques and monitoring can enhance repair success.

Article Abstract

Objective: Mitral valve repair is perceived to be of limited durability for advanced rheumatic disease in adults. We aim to examine the long-term outcomes of repair for rheumatic disease, identify predictors of durability, and compare with repair for degenerative disease.

Methods: Rheumatic and degenerative mitral valve repairs in patients aged 40 years or more were prospectively analyzed. The primary outcomes investigated were mortality, freedom from reoperation, and valve failure. Logistic regression analysis was performed to define predictors of poor outcome.

Results: Between 1997 and 2011, 253 rheumatic and 148 degenerative mitral valves were repaired. The age of patients in both groups was similar, with a mean of 54.1 ± 8.4 years versus 55.6 ± 7.3 years (P = .49). Freedom from reoperation for rheumatic valves at 5 and 10 years was 98.4%, comparable to 95.3% (P = .12) for degenerative valves. Freedom from valve failure at 5 and 10 years was 91.4% and 81.5% for rheumatic repairs and 82.5% and 75.4% for degenerative repairs, respectively (P = .15). The presence of residual mitral regurgitation greater than 2+ before discharge was the only significant independent predictor of reoperation, whereas residual mitral regurgitation greater than 2+ and leaflet procedures were significant risk factors for valve failure.

Conclusions: The durability of rheumatic mitral valve repair in the current era has improved and is comparable to the outstanding durability of repairs for degenerative disease, even in the adult rheumatic population. Modifications of standard repair techniques, adherence to the importance of good leaflet coaptation, and strict quality control with stringent use of intraoperative transesophageal echocardiography have all contributed to the improved long-term results.

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Source
http://dx.doi.org/10.1016/j.jtcvs.2014.08.066DOI Listing

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