Impact of Residual Mitral Regurgitation on Survival After Transcatheter Edge-to-Edge Repair for Secondary Mitral Regurgitation.
edge-to-edge repair
left ventricular volume
residual mitral regurgitation
right ventricular function
secondary mitral regurgitation
Journal
JACC. Cardiovascular interventions
ISSN: 1876-7605
Titre abrégé: JACC Cardiovasc Interv
Pays: United States
ID NLM: 101467004
Informations de publication
Date de publication:
14 06 2021
14 06 2021
Historique:
received:
05
01
2021
revised:
17
03
2021
accepted:
18
03
2021
pubmed:
17
5
2021
medline:
28
10
2021
entrez:
16
5
2021
Statut:
ppublish
Résumé
The aim of this study was to assess the impact of residual mitral regurgitation (resMR) on mortality with respect to left ventricular dilatation (LV-Dil) or right ventricular dysfunction (RV-Dys) in patients with secondary mitral regurgitation (SMR) who underwent mitral valve transcatheter edge-to-edge repair (TEER). The presence of LV-Dil and RV-Dys correlates with advanced stages of heart failure in SMR patients, which may impact the outcome after TEER. SMR patients in a European multicenter registry were evaluated. Investigated outcomes were 2-year all-cause mortality and improvement in New York Heart Association functional class with respect to MR reduction, LV-Dil (defined as LV end-diastolic volume ≥159 ml), and RV-Dys (defined as tricuspid annular plane systolic excursion-to-systolic pulmonary artery pressure ratio of <0.274 mm/mm Hg). Among 809 included patients, resMR ≤1+ was achieved in 546 (67%) patients. Overall estimated 2-year mortality rate was 32%. Post-procedural resMR was significantly associated with mortality (p = 0.031). Although the improvement in New York Heart Association functional class persisted regardless of either LV-Dil or RV-Dys, the beneficial treatment effect of resMR ≤1+ on 2-year mortality was observed only in patients without LV-Dil and RV-Dys (hazard ratio: 1.75; 95% confidence interval: 1.03 to 3.00). Achieving optimal MR reduction by TEER is associated with improved survival in SMR patients, especially if the progress in heart failure is not too advanced. In SMR patients with advanced stages of heart failure, as evidenced by LV-Dil or RV-Dys, the treatment effect of TEER on symptomatic improvement is maintained, but the survival benefit appears to be reduced.
Sections du résumé
OBJECTIVES
The aim of this study was to assess the impact of residual mitral regurgitation (resMR) on mortality with respect to left ventricular dilatation (LV-Dil) or right ventricular dysfunction (RV-Dys) in patients with secondary mitral regurgitation (SMR) who underwent mitral valve transcatheter edge-to-edge repair (TEER).
BACKGROUND
The presence of LV-Dil and RV-Dys correlates with advanced stages of heart failure in SMR patients, which may impact the outcome after TEER.
METHODS
SMR patients in a European multicenter registry were evaluated. Investigated outcomes were 2-year all-cause mortality and improvement in New York Heart Association functional class with respect to MR reduction, LV-Dil (defined as LV end-diastolic volume ≥159 ml), and RV-Dys (defined as tricuspid annular plane systolic excursion-to-systolic pulmonary artery pressure ratio of <0.274 mm/mm Hg).
RESULTS
Among 809 included patients, resMR ≤1+ was achieved in 546 (67%) patients. Overall estimated 2-year mortality rate was 32%. Post-procedural resMR was significantly associated with mortality (p = 0.031). Although the improvement in New York Heart Association functional class persisted regardless of either LV-Dil or RV-Dys, the beneficial treatment effect of resMR ≤1+ on 2-year mortality was observed only in patients without LV-Dil and RV-Dys (hazard ratio: 1.75; 95% confidence interval: 1.03 to 3.00).
CONCLUSIONS
Achieving optimal MR reduction by TEER is associated with improved survival in SMR patients, especially if the progress in heart failure is not too advanced. In SMR patients with advanced stages of heart failure, as evidenced by LV-Dil or RV-Dys, the treatment effect of TEER on symptomatic improvement is maintained, but the survival benefit appears to be reduced.
Identifiants
pubmed: 33992551
pii: S1936-8798(21)00524-0
doi: 10.1016/j.jcin.2021.03.050
pii:
doi:
Types de publication
Journal Article
Multicenter Study
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1243-1253Commentaires et corrections
Type : CommentIn
Informations de copyright
Copyright © 2021 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Funding Support and Author Disclosures This work was supported by Klinikum der Universität München. Dr. Higuchi has received lecture fees from Medtronic Japan, Daiichi-Sankyo, and Ono Pharmaceutical Company. Dr. Orban has received speaker fees from Abbott Vascular and Tomtec Imaging Systems. Dr. Karam has received consultant fees from Abbott Vascular. Dr. Kalbacher has received lecture fees and travel expenses from Abbott; and has received proctor fees and travel expenses from Edwards Lifesciences. Dr. Schofer has received personal fees from Boston Scientific; and has received travel compensation from Abbott Vascular and Edwards Lifesciences. Dr. Ludwig has received travel compensation from Abbott Vascular. Dr. Braun has received speaker honoraria from Abbott Vascular. Dr. Windecker has received research and educational grants from Abbott, Amgen, Bristol Myers Squibb, Bayer, Boston Scientific, Biotronik, CSL, Medtronic, Edwards, Sinomed, and Polares. Dr. Pfister has received financial support for attending symposia from Abbott Vascular. Dr. von Bardeleben has received speaker fees from Abbott Vascular and Edwards Lifesciences. Dr. Hausleiter has received research support and speaker honoraria from Abbott Vascular and Edwards Lifesciences. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose.