Dataset Information

Prognosis of persistent mitral regurgitation in patients undergoing transcatheter aortic valve replacement.

ABSTRACT:

Objective

The objective of this study was to assess imaging predictors of mitral regurgitation (MR) improvement and to evaluate the impact of MR regression on long-term outcome in patients undergoing transcatheter aortic valve replacement (TAVR).

Background

Concomitant MR is a frequent finding in patients with severe aortic stenosis but usually left untreated at the time of TAVR.

Methods

Mitral regurgitation was graded by transthoracic echocardiography before and after TAVR in 677 consecutive patients with severe aortic stenosis. 2-year mortality was related to the degree of baseline and discharge MR. Morphological echo analysis was performed to determine predictors of MR improvement.

Results

15.2% of patients presented with baseline MR ≥ 3 +, which was associated with a significantly decreased 2-year survival (57.7% vs. 74.4%, P < 0.001). MR improved in 50% of patients following TAVR, with 44% regressing to MR ≤ 2 +. MR improvement to ≤ 2 + was associated with significantly better survival compared to patients with persistent MR ≥ 3 +. Baseline parameters including non-severe baseline MR, the extent of mitral annular calcification and large annular dimension (≥ 32 mm) predicted the likelihood of an improvement to MR ≤ 2 +. A score based on these parameters selected groups with differing probability of MR ≤ 2 + post TAVR ranging from 10.5 to 94.4% (AUC 0.816; P < 0.001), and was predictive for 2-year mortality.

Conclusion

Unresolved severe MR is a critical determinant of long term mortality following TAVR. Persistence of severe MR following TAVR can be predicted using selected parameters derived from TTE-imaging. These data call for close follow up and additional mitral valve treatment in this subgroup. Factors associated with MR persistence or regression after TAVR.

SUBMITTER: Mauri V

PROVIDER: S-EPMC7515951 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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Publications

Prognosis of persistent mitral regurgitation in patients undergoing transcatheter aortic valve replacement.

Mauri Victor V Körber Maria I MI Kuhn Elmar E Schmidt Tobias T Frerker Christian C Wahlers Thorsten T Rudolph Tanja K TK Baldus Stephan S Adam Matti M Ten Freyhaus Henrik H

Clinical research in cardiology : official journal of the German Cardiac Society 20200218 10

<h4>Objective</h4>The objective of this study was to assess imaging predictors of mitral regurgitation (MR) improvement and to evaluate the impact of MR regression on long-term outcome in patients undergoing transcatheter aortic valve replacement (TAVR).<h4>Background</h4>Concomitant MR is a frequent finding in patients with severe aortic stenosis but usually left untreated at the time of TAVR.<h4>Methods</h4>Mitral regurgitation was graded by transthoracic echocardiography before and after TAVR ...[more]

PMID: 32072263

Similar Datasets

Project description:BackgroundThe improvement rate and predictors of secondary mitral regurgitation in patients with aortic regurgitation undergoing transcatheter aortic valve replacement (TAVR) remain unclear. This study aimed to identify predictors of persistent moderate to severe secondary mitral regurgitation after TAVR in patients with aortic regurgitation by assessing mitral valve geometry with computed tomography (CT).MethodsThis retrospective cohort study reviewed 242 consecutive patients with aortic regurgitation who underwent TAVR between May 2014 and December 2022. Patients with primary or less than moderate mitral regurgitation were excluded. Mitral annular dimensions (area, perimeter, anteroposterior, intercommissural, and trigone-to-trigone diameter), mitral valve tenting geometry (mitral valve tenting area [MVTA] and mitral valve tenting height [MVTH]), and papillary muscle displacement were systematically measured at CT. Mitral regurgitation improvement was assessed at 3 months after TAVR by echocardiography. Logistic regression was performed to explore the association of mitral valve geometry with mitral regurgitation improvement after TAVR.ResultsA total of 75 patients (mean age, 74 ± 7 years; 32.0% female) with moderate to severe secondary mitral regurgitation were included in the final analysis. Mitral regurgitation improved in 49 patients and remained unchanged in 26 patients. Mitral annular dimensions, including area, perimeter, anteroposterior, and intercommissural diameter, were associated with mitral regurgitation improvement. MVTA and MVTH were risk factors for sustained mitral regurgitation. In addition, QRS duration > 120 ms and atrial fibrillation had an impact on the mitral regurgitation improvement. Mitral annular area (odds ratio [OR], 1.41; 95% confidence interval [CI]: 1.05, 1.90; p = 0.02) and MVTA (OR, 7.24; 95% CI: 1.72, 30.44; p = 0.007) were independent predictors of persistent secondary mitral regurgitation after TAVR.ConclusionsMitral annular area and MVTA were independent predictors of persistent secondary mitral regurgitation after TAVR.

Project description:AimsThe optimal treatment for severe aortic valve disease complicated with moderate function mitral regurgitation (FMR) remains controversial. Although isolated surgical aortic valve replacement (SAVR) is reasonable, previous studies also show that moderate FMR might deteriorate after surgical treatment and result in poorer prognosis. Because the left ventricular remodelling plays a critical role in the development of FMR, these patients might potentially benefit from the administration of β-blocker (BB). Unfortunately, relevant clinical evidence is lacking. This study aimed to investigate the impact of post-operative administration of BB on the outcomes of moderate FMR patients undergoing isolated SAVR.MethodsIn this single-centre cohort study, patients who underwent isolated SAVR and complicated with pre-operative moderate FMR during 2010 and 2019 at our centre were retrospectively recruited. Patients were divided into two groups according to postoperative administration of BB (BB group vs. control group). The cumulative survival rates were calculated using the Kaplan-Meier method and tested by the log-rank test, followed by inverse probability treatment weighting (IPTW) analysis to further control the between-group imbalances. The primary outcome was the major adverse cardiovascular and cerebrovascular events (MACCE), a composite endpoint of all-cause death, repeat heart valve surgery, non-fatal myocardial infarction, stroke, and hospitalization for heart failure.ResultsA total of 165 patients were enrolled, 57 (34.6%) of whom were female, and the mean age was 59.2 ± 12.2 years. Eighty (48.5%) patients received post-operative BB therapy. The median follow-up time was 18.4 months. The administration of BB was not associated with lower risk of MACCE [hazard ratio (HR): 0.68, 95% confidence interval (CI): 0.29-1.62, P = 0.388] or all-cause death (HR: 1.03, 95% CI: 0.30-0.56, P = 0.967). In the IPTW dataset, the total number of patients were 326.89, and the outcomes regarding the risk of MACCE (HR: 0.79, 95% CI: 0.31-1.97, P = 0.607) and all-cause death (HR: 1.33, 95% CI:0.35-5.05, P = 0.674) were in line with the unmatched analysis. The follow-up echocardiographic results were available for 72.2% of the overall cohort, and the use of BB was observed to be associated with higher improvement rate of follow-up FMR according to the IPTW analysis (92.2% vs. 98.3%, P = 0.033).ConclusionsThe administration of BB after SAVR was not associated with lower risk of MACCE for patients of severe aortic valve disease complicated with moderate FMR, but was potentially beneficial for improving FMR.

Dataset Information

Prognosis of persistent mitral regurgitation in patients undergoing transcatheter aortic valve replacement.

Objective

Background

Methods

Results

Conclusion

Publications

Prognosis of persistent mitral regurgitation in patients undergoing transcatheter aortic valve replacement.

Similar Datasets

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