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Transcatheter or Surgical Repair for Degenerative Mitral Regurgitation in Elderly Patients: A Propensity-Weighted Analysis
The authors address appropriate use of the transcatheter clip to treat degenerative mitral regurgitation in elderly low to moderate risk patients. Their analysis shows that the transcatheter approach had slightly higher one year survival (97.6% vs 95.3%) than the surgical group but long-term survival was much worse than the surgical group at five years (34.5% vs 82.2%). This is likely related to a much higher incidence of recurrent >3+ mitral regurgitation in the clip group, 36.9% vs 3.9%. The one caveat was that the STS PROM (interquartile range) was higher in the clip group, 2.99 (2.29 to 4.38) vs 1.64(1.3 to 2.41), which has been shown to correlate with long-term survival.