Management and Outcome of Failed Percutaneous Edge-to-Edge Mitral Valve Plasty: Insight From an International Registry

Antonio Mangieri, Francesco Melillo, Claudio Montalto, Paolo Denti, Fabien Praz, Alessandra Sala, Mirjam G. Winkel, Maurizio Taramasso, Ana Paula Tagliari, Neil P. Fam, Antonio Popolo Rubbio, Federico De Marco, Francesco Bedogni, Stefan Toggweiler, Joachim Schofer, Christina Brinkmann, Horst Sievert, Nicolas M. Van Mieghem, Joris F. Ooms, Jean Michel ParadisJosep Rodés-Cabau, Eric Brochet, Dominique Himbert, Leor Perl, Ran Kornowski, Alfonso Ielasi, Damiano Regazzoli, Luca Baldetti, Giulia Masiero, Giuseppe Tarantini, Azeem Latib, Alessandra Laricchia, Angie Gattas, Didier Tchetchè, Nicolas Dumonteil, Giannini Francesco, Eustachio Agricola, Matteo Montorfano, Philipp Lurz, Gabriele Crimi, Francesco Maisano, Antonio Colombo

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Objectives: This study evaluated the incidence, management, and outcome of patients who experienced MitraClip (Abbott Vascular) failure secondary to loss of leaflet insertion (LLI), single leaflet detachment (SLD), or embolization. Background: Transcatheter edge-to-edge repair with MitraClip is an established therapy for the treatment of mitral regurgitation (MR), but no data exist regarding the prevalence and outcome according to the mode of clip failure. Methods: Between January 2009 and December 2020, we retrospectively screened 4,294 procedures of MitraClip performed in 19 centers. LLI was defined as damage to the leaflet where the MitraClip was attached, SLD as demonstration of complete separation between the device and a single leaflet tissue, and clip embolization as loss of contact between MitraClip and both leaflets. Results: A total of 147 cases of MitraClip failure were detected (overall incidence = 3.5%), and these were secondary to LLI or SLD in 47 (31.9%) and 99 (67.3%) cases, respectively, whereas in 1 (0.8%) case clip embolization was observed. MitraClip failure occurred in 67 (45.5%) patients with functional MR, in 64 (43.5%) patients with degenerative MR, and 16 (10.8%) with mixed etiology. Although the majority of MitraClip failures were detected before discharge (47 intraprocedural and 42 in the hospital), up to 39.5% of cases were diagnosed at follow-up. In total, 80 (54.4%) subjects underwent a redo procedure, either percutaneously with MitraClip (n = 51, 34.7%) or surgically (n = 36, 24.5%) including 4 cases of surgical conversion of the index procedure and 7 cases of bailout surgery after unsuccessful redo MitraClip. After a median follow-up of 163 days (IQR: 22-720 days), 50 (43.9%) subjects presented moderate to severe MR, and 43 (29.3%) patients died. An up-front redo MitraClip strategy was associated with a trend toward a reduced rate of death at follow-up vs surgical or conservative management (P = 0.067), whereas postprocedural acute kidney injury, age, and moderate to severe tricuspid regurgitation were independent predictors of death. Conclusions: MitraClip failure secondary to LLI and SLD is not a rare phenomenon and may occur during and also beyond hospitalization. Redo MitraClip strategy demonstrates a trend toward a reduced risk of death compared with bailout surgery and conservative management. A third of those patients remained with more than moderate MR and had substantial mortality at the intermediate-term follow-up.

Original languageEnglish (US)
Pages (from-to)411-422
Number of pages12
JournalJACC: Cardiovascular Interventions
Issue number4
StatePublished - Feb 28 2022


  • MitraClip
  • cardiac surgery
  • mitral regurgitation
  • mitral valve

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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