Residual Mitral Regurgitation Interacts With Transmitral Mean Pressure Gradient to Modify the Association With Mortality Following Transcatheter Edge-to-Edge Repair

Both rMR and TMPG were nonlinearly associated with 1-year mortality. At low levels of rMR, changes in TMPG are associated with only small changes in the risk of death. Conversely, at higher levels of rMR, even small changes in TMPG are associated with larger changes in the absolute risk of death.