Reoperative mitral surgery versus transcatheter mitral valve replacement: A systematic review

Aditya Sengupta, Farhang Yazdchi, Sophia L. Alexis, Edward Percy, Akash Premkumar, Sameer Hirji, Vinayak N. Bapat, Deepak L. Bhatt, Tsuyoshi Kaneko, Gilbert H.L. Tang

Research output: Contribution to journalReview articlepeer-review

16 Scopus citations

Abstract

Bioprosthetic mitral structural valve degeneration and failed mitral valve repair (MVr) have traditionally been treated with reoperative mitral valve surgery. Transcatheter mitral valve-in-valve (MVIV) and valve-in-ring (MVIR) replacement are now feasible, but data comparing these approaches are lacking. We sought to compare the outcomes of (1) reoperative mitral valve replacement (redo-MVR) and MVIV for structural valve degeneration, and (2) reoperative mitral valve repair (redo-MVr) or MVR and MVIR for failed MVr. A literature search of PubMed, Embase, and the Cochrane Library was conducted up to July 31, 2020. Thirty-two studies involving 25 832 patients were included. Redo-MVR was required in ≈35% of patients after index surgery at 10 years, with 5% to 15% 30-day mortality. MVIV resulted in >95% procedural success with 30-day and 1-year mortality of 0% to 8% and 11% to 16%, respectively. Recognized complications included left ventricular outflow tract obstruction (0%–6%), valve migration (0%–9%), and residual regurgitation (0%–6%). Comparisons of redo-MVR and MVIV showed no statistically significant differences in mortality (11.3% versus 11.9% at 1 year, P=0.92), albeit higher rates of major bleeding and arrhythmias with redo-MVR. MVIR resulted in 0% to 34% mortality at 1 year, whereas both redo-MVr and MVR for failed repairs were performed with minimal mortality and durable long-term results. MVIV is therefore a viable alternative to redo-MVR for structural valve degeneration, whereas redo-MVr or redo-MVR is preferred for failed MVr given the suboptimal results with MVIR. However, not all patients will be candidates for MVIV/MVIR because anatomical restrictions may preclude transcatheter options from adequately addressing the underlying pathology.

Original languageEnglish
Article numbere019854
JournalJournal of the American Heart Association
Volume10
Issue number6
DOIs
StatePublished - 2021
Externally publishedYes

Keywords

  • Redo mitral valve repair
  • Reoperative mitral valve replacement
  • Transcatheter mitral valve replacement
  • Valve-in-ring
  • Valve-in-valve

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