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Critical clip opening while locked: a rare phenomenon after transcatheter edge-to-edge mitral valve repair.

ABSTRACT:

SUBMITTER: Yashige M

PROVIDER: S-EPMC10986389 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature

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Critical clip opening while locked: a rare phenomenon after transcatheter edge-to-edge mitral valve repair.

Yashige Masaki M Zen Kan K Yamano Tetsuhiro T Matoba Satoaki S

European heart journal. Case reports 20240323 4

PMID: 38567278

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Clip opening while locked after transcatheter edge-to-edge mitral valve repair with different onset times: a case series.

Project description:BackgroundTranscatheter edge-to-edge mitral valve repair is now available in many countries and has achieved favourable therapeutic outcomes. However, there have been no reported cases of clip opening while locked (COWL) during the acute phase using the MitraClip G4 system (Abbott, Abbott Park, IL, USA).Case summaryWe present two cases of COWL occurring at different phases: one immediately after clip release and the other 2 days post-procedure. In both cases, the initial treatment involved the use of the XTW system. Subsequently, an additional XT system was deployed for the deterioration of mitral regurgitation caused by COWL, without any complications.DiscussionThe MitraClip G4 system offers four size variations, providing a larger grasping area and increased flexibility for accessing complex lesions. Furthermore, the complication rate decreased with increasing operator experience and device generation. However, it has been reported that COWL can occur after the clip is deployed during TEER. Although the mechanism of COWL is unclear, the nature and mobility of the valve leaflets and the product specificity of the MitraClip may be involved.

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Mitral valve transcatheter edge-to-edge repair.

Project description:Mitral regurgitation (MR) is the most prevalent valvular heart disease and, when left untreated, results in reduced quality of life, heart failure, and increased mortality. Mitral valve transcatheter edge-to-edge repair (M-TEER) has matured considerably as a non-surgical treatment option since its commercial introduction in Europe in 2008. As a result of major device and interventional improvements, as well as the accumulation of experience by the interventional cardiologists, M-TEER has emerged as an important therapeutic strategy for patients with severe and symptomatic MR in the current European and American guidelines. Herein, we provide a comprehensive up-do-date overview of M-TEER. We define preprocedural patient evaluation and highlight key aspects for decision-making. We describe the currently available M-TEER systems and summarise the evidence for M-TEER in both primary mitral regurgitation (PMR) and secondary mitral regurgitation (SMR). In addition, we provide recommendations for device selection, intraprocedural imaging and guiding, M-TEER optimisation and management of recurrent MR. Finally, we provide information on major unsolved questions and "grey areas" in M-TEER.

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Torrential Mitral Regurgitation After Transcatheter Edge-to-Edge Mitral Valve Repair.

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Mitral valve surgery after failed transcatheter edge-to-edge repair.

Project description:ObjectiveMitral valve operations for failed transcatheter edge-to-edge repair (TEER) are increasing. This study investigated the indications, surgical procedures, and outcomes after surgery for failed TEER.MethodsWe analyzed records of patients who underwent mitral valve operations after TEER between January 2013 and September 2021. Patient characteristics, clip number and location, indications, timing, surgery type, and outcomes were evaluated.ResultsA total of 41 patients (median age, 77 years; 14 women; median Society of Thoracic Surgeons predicted risk of mortality score, 9.4% [5.6%-12.6%]; and previous cardiac surgery in 21 patients) underwent mitral valve surgery at a median of 8 months (range, 4-16 months) after TEER. One clip was implanted in 24 patients and 2 or more in 17 patients. Indications for surgery were severe mitral regurgitation in 33, severe mitral stenosis in 1 patient, and both in 7 patients. Operations were performed via sternotomy in 37 patients and lateral thoracotomy in 4 patients. The mitral valve was replaced in all patients (bioprosthesis in 35 patients and a mechanical valve in 6 patients). Concomitant procedures were performed in 30 patients. Operative mortality was 5% (observed to expected ratio, 0.53) and did not differ for primary procedures versus reoperations. Echocardiographic follow-up demonstrated no or trivial mitral regurgitation in 34 patients, mild mitral regurgitation in 5 patients, and moderate perivalvular mitral regurgitation in 1 patient with severe mitral annular calcification. At a median follow-up of 1.5 years (interquartile range, 4.7 months-2.7 years), the actuarial survival was 79%.ConclusionsMitral valve replacement can be performed safely after failed TEER with operative mortality lower than expected even in high-risk patients.Video abstract

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Project description:BackgroundFunctional mitral regurgitation (MR) in patients with heart failure can be treated medically or by transcatheter edge-to-edge repair (TEER) if medical therapy fails. Patients who are not suitable for TEER or surgical intervention might benefit from transcatheter mitral valve implantation using the TENDYNE valve.Case summaryA 58-year-old male with a history of heart failure was admitted frequently with acute heart failure and functional MR, treated medically without significant improvement. He underwent mitral TEER therapy using MitraClip. A few months later, he was admitted with acute decompensated heart failure. Echocardiography showed severe MR with a detached clip from the posterior leaflet. He underwent redo mitral TEER using MitraClip as an option for treating single leaflet device detachment. He was readmitted with the same symptoms and his echocardiography showed detachment of both clips from the posterior leaflet. The patient underwent TMVI using the TENDYNE valve being not suitable for another attempt of mitral TEER. On follow-up, he was asymptomatic and echocardiography showed normal functioning mitral bioprosthesis with a mean gradient of 4 mm/Hg and no paravalvular leak.DiscussionTranscatheter mitral valve implantation using TENDYNE valve is an option for treating patients with functional MR and detached MitraClips.

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