3D vena contracta area after MitraClip© procedure: precise quantification of residual mitral regurgitation and identification of prognostic information.

VCA improves the evaluation of small residual MR. Its post-procedural values remain stable during a short-term follow-up and imply prognostic information for the patients' physical improvement. VCA might contribute to a more substantiated estimation of treatment success in the heterogeneous functional MR group.