Dataset Information

MitraClip After Failed Surgical Mitral Valve Repair-An International Multicenter Study.

ABSTRACT: Background Recurrence of mitral regurgitation (MR) after surgical mitral valve repair (SMVR) varies and may require reoperation. Redo mitral valve surgery can be technically challenging and is associated with increased risk of mortality and morbidity. We aimed to assess the feasibility and safety of MitraClip as a treatment strategy after failed SMVR and identify procedure modifications to overcome technical challenges. Methods and Results This international multicenter observational retrospective study collected information for all patients from 16 high-volume hospitals who were treated with MitraClip after failed SMVR from October 29, 2009, until August 1, 2017. Data were anonymously collected. Technical and device success were recorded per modified Mitral Valve Academic Research Consortium criteria. Overall, 104 consecutive patients were included. Median Society of Thoracic Surgeons score was 4.5% and median age was 73 years. At baseline, the majority of patients (82%) were in New York Heart Association class ≥III and MR was moderate or higher in 86% of patients. The cause of MR pre-SMVR was degenerative in 50%, functional in 35%, mixed in 8%, and missing/unknown in 8% of patients. The median time between SMVR and MitraClip was 5.3 (1.9-9.7) years. Technical and device success were 90% and 89%, respectively. Additional/modified imaging was applied in 21% of cases. An MR reduction of ≥1 grade was achieved in 94% of patients and residual MR was moderate or less in 90% of patients. In-hospital all-cause mortality was 2%, and 86% of patients were in New York Heart Association class ≤II. Conclusions MitraClip is a safe and less invasive treatment option for patients with recurrent MR after failed SMVR. Additional/modified imaging may help overcome technical challenges during leaflet grasping.

SUBMITTER: Rahhab Z

PROVIDER: S-EPMC8174343 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature

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MitraClip After Failed Surgical Mitral Valve Repair-An International Multicenter Study.

Rahhab Zouhair Z Lim David Scott DS Little Stephen H SH Taramasso Maurizio M Kuwata Shingo S Saccocci Matteo M Tamburino Corrado C Grasso Carmelo C Frerker Christian C Wißt Theresa T Garberich Ross R Hausleiter Jörg J Braun Daniel D Avenatti Eleonora E Delgado Victoria V Ussia Gian Paolo GP Castriota Fausto F Nerla Roberto R Ince Hüseyin H Öner Alper A Estevez-Loureiro Rodrigo R Latib Azeem A Regazzoli Damiano D Piazza Nicolo N Alosaimi Hind H de Jaegere Peter P T PPT Bax Jeroen J Dvir Danny D Maisano Francesco F Sorajja Paul P Reardon Michael J MJ Van Mieghem Nicolas M NM

Journal of the American Heart Association 20210402

Background Recurrence of mitral regurgitation (MR) after surgical mitral valve repair (SMVR) varies and may require reoperation. Redo mitral valve surgery can be technically challenging and is associated with increased risk of mortality and morbidity. We aimed to assess the feasibility and safety of MitraClip as a treatment strategy after failed SMVR and identify procedure modifications to overcome technical challenges. Methods and Results This international multicenter observational retrospecti ...[more]

PMID: 33794658

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Project description:ObjectivesAmong patients undergoing transcatheter mitral valve repair with the MitraClip device, a relevant proportion (2-6%) requires open mitral valve surgery within 1 year after unsuccessful clip implantation. The goal of this review is to pool data from different reports to provide a comprehensive overview of mitral valve surgery outcomes after the MitraClip procedure and estimate in-hospital and follow-up mortality.MethodsAll published clinical studies reporting on surgical intervention for a failed MitraClip procedure were evaluated for inclusion in this meta-analysis. The primary study outcome was in-hospital mortality. Secondary outcomes were in-hospital adverse events and follow-up mortality. Pooled estimate rates and 95% confidence intervals (CIs) of study outcomes were calculated using a DerSimionian-Laird binary random-effects model. To assess heterogeneity across studies, we used the Cochrane Q statistic to compute I2 values.ResultsOverall, 20 reports were included, comprising 172 patients. Mean age was 70.5 years (95% CI 67.2-73.7 years). The underlying mitral valve disease was functional mitral regurgitation in 50% and degenerative mitral regurgitation in 49% of cases. The indication for surgery was persistent or recurrent mitral regurgitation (grade >2) in 93% of patients, whereas 6% of patients presented with mitral stenosis. At the time of the operation, 80% of patients presented in New York Heart Association functional class III-IV. Despite favourable intraoperative results, in-hospital mortality was 15%. The rate of periprocedural cerebrovascular accidents was 6%. At a mean follow-up of 12 months, all-cause death was 26.5%. Mitral valve replacement was most commonly required because the possibility of valve repair was jeopardized, likely due to severe valve injury after clip implantation.ConclusionsSurgical intervention after failed transcatheter mitral valve intervention is burdened by high in-hospital and 1-year mortality, which reflects reflecting the high-risk baseline profile of the patients. Mitral valve replacement is usually required due to leaflet injury.

Dataset Information

MitraClip After Failed Surgical Mitral Valve Repair-An International Multicenter Study.

Publications

MitraClip After Failed Surgical Mitral Valve Repair-An International Multicenter Study.

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