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Left atrial size predicts long-term outcome after balloon mitral valvuloplasty


- Leviev Cardiovascular Institute, Sheba Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Ramat Gan, Israel
- Department of Internal Medicine H, Sheba Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Ramat Gan, Israel
open access
Abstract
Background: The treatment of choice for severe rheumatic mitral stenosis is balloon mitral valvuloplasty (BMV). Numerous predictors of immediate and long-term procedural success have been described. The aims of this study were to describe our experience with BMV over the last decade and to evaluate predictors of long-term event-free survival. Methods: Medical records were retrospectively analyzed of patients who underwent BMV between 2009 and 2021. The primary outcome was a composite endpoint of all-cause mortality, mitral valve replacement (MVR), and repeat BMV. Long-term event-free survival was estimated using the Kaplan-Meier curves. Logistic regression was used to create a multivariate model to assess pre-procedural predictors of the primary outcome. Results: A total of 96 patients underwent BMV during the study period. The primary outcome occurred in 36 patients during 12-year follow-up: 1 (1%) patient underwent re-BMV, 28 (29%) had MVR, and 8 (8%) died. Overall event-free survival was 62% at 12 years. On multivariate analysis, pre-procedural left atrial volume index (LAVI) > 80 mL/m2 had a significant independent influence on event-free survival, as did previous mitral valve procedure and systolic pulmonary arterial pressure above 50 mmHg. Conclusion: Despite being a relatively low-volume center, excellent short and long-term results were demonstrated, with event-free survival rates consistent with previous studies from high-volume centers. LAVI independently predicted long-term event-free survival.
Abstract
Background: The treatment of choice for severe rheumatic mitral stenosis is balloon mitral valvuloplasty (BMV). Numerous predictors of immediate and long-term procedural success have been described. The aims of this study were to describe our experience with BMV over the last decade and to evaluate predictors of long-term event-free survival. Methods: Medical records were retrospectively analyzed of patients who underwent BMV between 2009 and 2021. The primary outcome was a composite endpoint of all-cause mortality, mitral valve replacement (MVR), and repeat BMV. Long-term event-free survival was estimated using the Kaplan-Meier curves. Logistic regression was used to create a multivariate model to assess pre-procedural predictors of the primary outcome. Results: A total of 96 patients underwent BMV during the study period. The primary outcome occurred in 36 patients during 12-year follow-up: 1 (1%) patient underwent re-BMV, 28 (29%) had MVR, and 8 (8%) died. Overall event-free survival was 62% at 12 years. On multivariate analysis, pre-procedural left atrial volume index (LAVI) > 80 mL/m2 had a significant independent influence on event-free survival, as did previous mitral valve procedure and systolic pulmonary arterial pressure above 50 mmHg. Conclusion: Despite being a relatively low-volume center, excellent short and long-term results were demonstrated, with event-free survival rates consistent with previous studies from high-volume centers. LAVI independently predicted long-term event-free survival.
Keywords
mitral valve, mitral stenosis, balloon mitral valvuloplasty, left atrial size, event-free survival


Title
Left atrial size predicts long-term outcome after balloon mitral valvuloplasty
Journal
Issue
Article type
Original Article
Published online
2022-10-04
Page views
761
Article views/downloads
196
DOI
Pubmed
Keywords
mitral valve
mitral stenosis
balloon mitral valvuloplasty
left atrial size
event-free survival
Authors
Michal Canetti
Rafael Kuperstein
Ido Cohen
Shir Raibman-Spector
Elad Maor
Ilan Hai
Israel M. Barbash
Ehud Regev
Adi Butnaru
Amit Segev
Victor Guetta
Paul Fefer


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