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Abstract   Aim  Percutaneous mitral valve repair (PMVR) via MitraClip implantation is a therapeutic option for severe mitral regurgitation (MR) in advanced stages of heart failure (HF). However, progressive left ventricular dilation in these patients may lead to recurrent MR after PMVR and consequent re‐do MitraClip implantation. Here, we describe the characteristics and outcomes of this clinical scenario.    Methods and results  Patients with systolic HF and functional MR undergoing a re‐do MitraClip procedure were retrospectively analysed. Inclusion criteria were age ≥18 years, technical, device and procedural success at first MitraClip procedure, functional MR and systolic HF with an ejection fraction (EF) of &lt;45%. Seventeen out of 684 patients undergoing PMVR with the MitraClip device at our institution between September 2009 and July 2019 were included. All patients displayed advanced HF with an EF of 20% (±9.9) and highly elevated N‐terminal pro‐brain natriuretic peptide. Technical success of the re‐do MitraClip procedure was 100%, whereas procedural and device success were only achieved in 11 patients (65%). Unsuccessful re‐do procedures were related to lower EF and implantation of more than one clip at initial procedure. However, despite reduction in MR grade and no occurrence of significant mitral stenosis after the procedure, the mortality during 12 months follow‐up remained high (8 of 17; 47%).    Conclusions  In a cohort of patients with advanced HF undergoing PMVR, re‐do MitraClip procedure was feasible, but procedural success was unsatisfactory and morbidity and mortality remained high, possibly reflecting the advanced stage of HF in these patients.

Re‐do MitraClip in patients with functional mitral valve regurgitation and advanced heart failure