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Single-center five-year outcomes after interventional edge-to-edge repair of the mitral valve
BACKGROUND: The MitraClip procedure was established as a therapeutic alternative to mitral valve surgery for symptomatic patients with severe mitral regurgitation (MR) at prohibitive surgical risk. In this study, the aim was to evaluate 5-year outcomes after MitraClip. METHODS: Consecutive patients...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Via Medica
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8078937/ https://www.ncbi.nlm.nih.gov/pubmed/31313274 http://dx.doi.org/10.5603/CJ.a2019.0071 |
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author | Öztürk, Can Friederich, Mona Werner, Nikos Nickenig, Georg Hammerstingl, Christoph Schueler, Robert |
author_facet | Öztürk, Can Friederich, Mona Werner, Nikos Nickenig, Georg Hammerstingl, Christoph Schueler, Robert |
author_sort | Öztürk, Can |
collection | PubMed |
description | BACKGROUND: The MitraClip procedure was established as a therapeutic alternative to mitral valve surgery for symptomatic patients with severe mitral regurgitation (MR) at prohibitive surgical risk. In this study, the aim was to evaluate 5-year outcomes after MitraClip. METHODS: Consecutive patients undergoing the MitraClip system were prospectively included. All patients underwent clinical follow-up and transthoracic echocardiography. RESULTS: Two hundred sixty-five patients (age: 81.4 ± 8.1 years, 46.7% female, logistic EuroSCORE: 19.7 ± 16.7%) with symptomatic MR (60.5% secondary MR [sMR]). Although high procedural success of 91.3% was found, patients with primary MR (pMR) had a higher rate of procedural failure (sMR: 3.1%, pMR: 8.6%; p = 0.04). Five years after the MitraClip procedure, the majority of patients presented with reduced symptoms and improved functional capacity (functional NYHA class: p = 0.0001; 6 minutes walking test: p = 0.04). Sustained MR reduction (≤ grade 2) was found in 74% of patients, and right ventricular (RV) function was significantly increased (p = 0.03). Systolic pulmonary artery pressure (sPAP) was significantly reduced during follow-up only in sMR patients (p = 0.05, p = 0.3). Despite a pronounced clinical and echocardiographical amelioration and low interventional failure, 5-year mortality was significantly higher in patients with sMR (p = 0.05). The baseline level of creatinine (HR: 0.695), sPAP (HR: 0.96) and mean mitral valve gradient (MVG) (HR: 0.82) were found to be independent predictors for poor functional outcome and mortality. CONCLUSIONS: Transcatheter mitral valve repair with the MitraClip system showed low complication rates and sustained MR reduction with improved RV function and sPAP 5 years after the procedure was found in all patients, predominantly in patients with sMR. Despite pronounced functional amelioration with low procedure failure, sMR patients had higher 5-year mortality and worse outcomes. Baseline creatinine, MVG, and sPAP were found to be independent predictors of poor functional outcomes and 5-year mortality. |
format | Online Article Text |
id | pubmed-8078937 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Via Medica |
record_format | MEDLINE/PubMed |
spelling | pubmed-80789372021-05-10 Single-center five-year outcomes after interventional edge-to-edge repair of the mitral valve Öztürk, Can Friederich, Mona Werner, Nikos Nickenig, Georg Hammerstingl, Christoph Schueler, Robert Cardiol J Interventional Cardiology BACKGROUND: The MitraClip procedure was established as a therapeutic alternative to mitral valve surgery for symptomatic patients with severe mitral regurgitation (MR) at prohibitive surgical risk. In this study, the aim was to evaluate 5-year outcomes after MitraClip. METHODS: Consecutive patients undergoing the MitraClip system were prospectively included. All patients underwent clinical follow-up and transthoracic echocardiography. RESULTS: Two hundred sixty-five patients (age: 81.4 ± 8.1 years, 46.7% female, logistic EuroSCORE: 19.7 ± 16.7%) with symptomatic MR (60.5% secondary MR [sMR]). Although high procedural success of 91.3% was found, patients with primary MR (pMR) had a higher rate of procedural failure (sMR: 3.1%, pMR: 8.6%; p = 0.04). Five years after the MitraClip procedure, the majority of patients presented with reduced symptoms and improved functional capacity (functional NYHA class: p = 0.0001; 6 minutes walking test: p = 0.04). Sustained MR reduction (≤ grade 2) was found in 74% of patients, and right ventricular (RV) function was significantly increased (p = 0.03). Systolic pulmonary artery pressure (sPAP) was significantly reduced during follow-up only in sMR patients (p = 0.05, p = 0.3). Despite a pronounced clinical and echocardiographical amelioration and low interventional failure, 5-year mortality was significantly higher in patients with sMR (p = 0.05). The baseline level of creatinine (HR: 0.695), sPAP (HR: 0.96) and mean mitral valve gradient (MVG) (HR: 0.82) were found to be independent predictors for poor functional outcome and mortality. CONCLUSIONS: Transcatheter mitral valve repair with the MitraClip system showed low complication rates and sustained MR reduction with improved RV function and sPAP 5 years after the procedure was found in all patients, predominantly in patients with sMR. Despite pronounced functional amelioration with low procedure failure, sMR patients had higher 5-year mortality and worse outcomes. Baseline creatinine, MVG, and sPAP were found to be independent predictors of poor functional outcomes and 5-year mortality. Via Medica 2021-04-13 /pmc/articles/PMC8078937/ /pubmed/31313274 http://dx.doi.org/10.5603/CJ.a2019.0071 Text en Copyright © 2021 Via Medica https://creativecommons.org/licenses/by-nc-nd/4.0/This article is available in open access under Creative Common Attribution-Non-Commercial-No Derivatives 4.0 International (CC BY-NC-ND 4.0) license, allowing to download articles and share them with others as long as they credit the authors and the publisher, but without permission to change them in any way or use them commercially. |
spellingShingle | Interventional Cardiology Öztürk, Can Friederich, Mona Werner, Nikos Nickenig, Georg Hammerstingl, Christoph Schueler, Robert Single-center five-year outcomes after interventional edge-to-edge repair of the mitral valve |
title | Single-center five-year outcomes after interventional edge-to-edge repair of the mitral valve |
title_full | Single-center five-year outcomes after interventional edge-to-edge repair of the mitral valve |
title_fullStr | Single-center five-year outcomes after interventional edge-to-edge repair of the mitral valve |
title_full_unstemmed | Single-center five-year outcomes after interventional edge-to-edge repair of the mitral valve |
title_short | Single-center five-year outcomes after interventional edge-to-edge repair of the mitral valve |
title_sort | single-center five-year outcomes after interventional edge-to-edge repair of the mitral valve |
topic | Interventional Cardiology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8078937/ https://www.ncbi.nlm.nih.gov/pubmed/31313274 http://dx.doi.org/10.5603/CJ.a2019.0071 |
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