Percutaneous mitral repair with MitraClip is safe and effective in patients with degenerative and functional MR with high surgical risk. However, some patients require subsequent mitral surgery for recurrence of significant MR.
This single-center, observational study includes consecutive patients who underwent mitral surgery after failed MitraClip.
Twenty-five patients (age, 69 ± 15 years; 52% women) with severe symptomatic MR after failed MitraClip implantation underwent mitral surgery after a median interval of 5.1 months (interquartile range, 2.5-14 months). Ten patients underwent MV repair (8 with robotic minithoracotomy) and 15 underwent MV replacement (most with sternotomy). Two patients in whom MV repair was intended underwent MV replacement because MitraClip-related leaflet damage prohibited repair. Examples of relative contraindication for MV repair that led to pursuing MV replacement were advanced patient age in 4 patients (mean age, 85 ± 7.6 years), endocarditis in 1 patient, and severely calcified or rheumatic leaflets in 5 patients. Perioperative complications were rare and intermediate-term mortality was similar between groups (3 patients in the MV repair group [30%] vs 4 patients in the MV replacement group [27%]; P=.90).
When performed by an experienced mitral surgeon and within 1 year of failed MitraClip implantation, surgical MV repair is feasible in most patients who were surgical repair candidates before the clip. Having the option for surgical MV repair after failed MitraClip is important to preserve optimal long-term outcomes for patients who undergo transcatheter mitral repair with MitraClip, especially as ongoing trials are shifting to study lower-risk patients who are also candidates for surgical repair.