Cumulative incidence of heart failure hospitalizations following mitral transcatheter edge-to-edge repair according to immediate post-clipping mitral regurgitation grade and pulmonary venous flow pattern. Residual mitral regurgitation of more than mild degree (Panel A), as well as non-normalization of the pulmonary venous flow pattern (Panel B) at the end of mitral transcatheter edge-to-edge repair, were both associated with a higher cumulative incidence of heart failure hospitalizations following the procedure. MR = mitral regurgitation; PVFP = pulmonary venous flow pattern; TEER = transcatheter edge-to-edge repair.