scholarly journals Treatment of Secondary Mitral Regurgitation in Heart Failure: A Shifting Paradigm in the Wake of the COAPT Trial

2020 ◽  
Vol 14 ◽  
Author(s):  
Kelly H Schlendorf ◽  
Jared O’Leary ◽  
JoAnn Lindenfeld

Secondary mitral regurgitation (MR) is common in patients with left heart dysfunction and it is associated with poor outcomes. Findings from the Cardiovascular Outcomes Assessment of the MitraClip Percutaneous Therapy for Heart Failure Patients with Functional Mitral Regurgitation (COAPT) trial, published in 2018, suggest that in a subset of people with heart failure with secondary MR that persists despite optimization of guideline-directed medical therapies, there is now a role for percutaneous mitral valve repair using the MitraClip device. Defining which patients are most likely to benefit from MitraClip, and when, requires both a multidisciplinary approach centered on heart failure, as well as a recognition of the need for further research in this area.

2019 ◽  
Vol 14 (1) ◽  
pp. 45-47 ◽  
Author(s):  
Kimberly Atianzar ◽  
Ming Zhang ◽  
Zachary Newhart ◽  
Sameer Gafoor

In 2018, the world of functional mitral regurgitation changed with the presentation of two trials – Multicentre Study of Percutaneous Mitral Valve Repair MitraClip Device in Patients With Severe Secondary Mitral Regurgitation (MITRA-FR) and Cardiovascular Outcomes Assessment of the MitraClip Percutaneous Therapy for Heart Failure Patients with Functional Mitral Regurgitation (COAPT). The trials, which seemed to point in two different directions, raised significant questions for the field. This article looks at the differences in effective regurgitant area, guideline-directed medical therapy, patient selection, technical clues and other reasons why the trials had similar aims but very different findings.


2020 ◽  
Vol 14 ◽  
Author(s):  
Suzanne J Baron

Treatment of secondary (or functional) mitral regurgitation had traditionally been limited to optimal medical therapy because studies have failed to show a survival benefit with mitral valve surgery for this condition. However, recently the Cardiovascular Outcomes Assessment of the MitraClip Percutaneous Therapy for Heart Failure Patients with Functional Mitral Regurgitation (COAPT) trial demonstrated a significant decrease in heart failure hospitalizations and mortality in patients with severe secondary mitral regurgitation treated with percutaneous edge-to-edge mitral valve repair (TMVr) using the MitraClip device compared with medical therapy. Based o the results of the COAPT trial, the Food and Drug Administration granted approval for MitraClip treatment of patients with severe secondary mitral regurgitation in March 2019. In an attempt to understand the economic impact of treating this patient population with TMVr using the MitraClip device, a formal cost-effectiveness analysis was performed alongside the COAPT trial. This review summarizes the methods and results of the economic substudy of the COAPT trial and discusses the value of the MitraClip device from the perspective of the US healthcare system in the treatment of patients with symptomatic heart failure and secondary mitral regurgitation.


2020 ◽  
Vol 21 (1) ◽  
pp. 52-60 ◽  
Author(s):  
Tomás Benito-González ◽  
Rodrigo Estévez-Loureiro ◽  
Pedro A. Villablanca ◽  
Patrizio Armeni ◽  
Ignacio Iglesias-Gárriz ◽  
...  

2015 ◽  
Vol 21 (10) ◽  
pp. S157
Author(s):  
Yukiko Mizutani ◽  
Shunsuke Kubo ◽  
Makar Moody ◽  
Mamoo Nakamura ◽  
Takahiro Shiota ◽  
...  

2020 ◽  
Vol 7 ◽  
Author(s):  
Harish Sharma ◽  
Boyang Liu ◽  
Hani Mahmoud-Elsayed ◽  
Saul G. Myerson ◽  
Richard P. Steeds

Secondary mitral regurgitation (sMR) is characterized by left ventricular (LV) dilatation or dysfunction, resulting in failure of mitral leaflet coaptation. sMR complicates up to 35% of ischaemic cardiomyopathies (1) and 57% of dilated cardiomyopathies (2). Due to the prevalence of coronary artery disease worldwide, ischaemic cardiomyopathy is the most frequently encountered cause of sMR in clinical practice. Although mortality from cardiovascular disease has gradually fallen in Western countries, severe sMR remains an independent predictor of mortality (3) and hospitalization for heart failure (4). The presence of even mild sMR following acute MI reduces long-term survival free of major adverse events (1). Such adverse outcomes worsen as the severity of sMR increases, due to a cycle in which LV remodeling begets sMR and vice versa. Current guidelines do not recommend invasive treatment of the sMR alone as a first-line approach, due to the paucity of evidence supporting improvement in clinical outcomes. Furthermore, a lack of international consensus on the thresholds that define severe sMR has resulted in confusion amongst clinicians determining whether intervention is warranted (5, 6). The recent Cardiovascular Outcomes Assessment of the MitraClip Percutaneous Therapy for Heart Failure Patients with Functional Mitral Regurgitation (COAPT) trial (7) assessing the effectiveness of transcatheter mitral valve repair is the first study to demonstrate mortality benefit from correction of sMR and has reignited interest in identifying patients who would benefit from mitral valve intervention. Multimodality imaging, including echocardiography and cardiovascular magnetic resonance (CMR), plays a key role in helping to diagnose, quantify, monitor, and risk stratify patients for surgical and transcatheter mitral valve interventions.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
A Sisinni ◽  
C Godino ◽  
C.A Pivato ◽  
M Adamo ◽  
M Taramasso ◽  
...  

Abstract Background Limited data are available regarding the independent prognostic role of atrial fibrillation (AF) after transcatheter mitral valve repair with MitraClip. Aims We sought to evaluate the real impact of pre-operative AF in a wide series of patients with heart failure (HF) and secondary mitral regurgitation (MR) after MitraClip treatment. Methods The study included 605 patients with severe secondary MR from a multicenter international registry. Patients were stratified into two groups according to the presence or absence of pre-operative AF. The overall prevalence of pre-operative AF was 44%. Primary endpoint was 5-year overall death, secondary endpoints were 5–year cardiac death and first re-hospitalization for acute HF. Results At 5-year Kaplan-Meier (KM) analysis conducted in the entire study cohort, compared to patients without AF those with AF had significantly more adverse events in term of overall death (67% vs. 43%; p<0.001) (KM curve A) and cardiac death (65% vs. 37%; p=0.001) (KM curve B) and, moderately more re-hospitalization for acute HF (64% vs. 50%; p=0.048) (KM curve C). To account for baseline differences, patients were propensity score matched 1:1. After matching, 342 adequately matched patients were identified: compared to patients without AF, those with AF had higher rates of death and cardiac mortality but similar rates of re-hospitalization for acute HF. Conclusion In this large 5-year analysis of patients with HF undergoing MitraClip treatment for severe secondary MR, AF is common and associated with higher rates of both overall- and cardiac-death. However, AF doesn't seem to affect the benefit of the procedure in term of re-hospitalization for HF. Funding Acknowledgement Type of funding source: None


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