Faculty Opinions recommendation of Current Status and Future Prospects of Transcatheter Mitral Valve Replacement: JACC State-of-the-Art Review.

Author(s):  
John Augoustides
2021 ◽  
Vol 77 (24) ◽  
pp. 3058-3078
Author(s):  
Alberto Alperi ◽  
Juan F. Granada ◽  
Mathieu Bernier ◽  
François Dagenais ◽  
Josep Rodés-Cabau

2020 ◽  
Vol 71 (1) ◽  
pp. 249-261
Author(s):  
Paul N. Fiorilli ◽  
Howard C. Herrmann

Mitral regurgitation (MR) is the most prevalent form of moderate or severe valve disease in the developed world. MR can result from impairment of any part of the mitral valve apparatus and is classified as primary (disease of the leaflets) or secondary (functional). The presence of at least moderate MR is associated with increased morbidity and mortality. With the goal of avoiding the risks of traditional surgery, transcatheter mitral valve therapies have been developed. The current transcatheter repair techniques are limited by therapeutic target and incomplete MR reduction, and thus transcatheter mitral valve replacement (TMVR) has been pursued. Several devices (both transapical and transseptal) are under development, with both early feasibility and pivotal trials under way. As this field develops, the decision to treat with TMVR will require a heart team approach that takes patient-, disease-, and device-specific factors into account.


2021 ◽  
Vol 23 (8) ◽  
Author(s):  
Elias Rawish ◽  
Tobias Schmidt ◽  
Ingo Eitel ◽  
Christian Frerker

Abstract Purpose of review Transcatheter mitral valve replacement (TMVR) has been developed to address the need for an alternative therapeutic option to surgery in patients suffering from severe mitral regurgitation who are at high surgical risk. The present review illustrated the state-of-the-art of catheter-based mitral valve replacement evaluating technical characteristics and early clinical experience of different devices to outline prospects and challenges of TMVR. Recent findings Several devices are currently under clinical assessment. Early experience has demonstrated high procedural success of TMVR. However, TMVR faces several possible hurdles such as left ventricular outflow tract obstruction (LVOTO) after prosthesis deployment, access site complications, and thrombotic risk requiring anticoagulatory therapy. Summary Future studies should assess long-term prosthesis stability, optimal anticoagulation regime, and occurrence of paravalvular leakage. The development of smaller TMVR prostheses suitable for transseptal implantation could overcome bleeding complications. In perspective, TMVR may emerge to a clinically relevant therapeutic approach for patients with severe MR at high surgical risk.


2021 ◽  
Vol 14 (5) ◽  
pp. 541-550 ◽  
Author(s):  
John C. Lisko ◽  
Vasilis C. Babaliaros ◽  
Jaffar M. Khan ◽  
Norihiko Kamioka ◽  
Patrick T. Gleason ◽  
...  

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
M Fukui ◽  
P Sorajja ◽  
M Goessl ◽  
R Bae ◽  
B Sun ◽  
...  

Abstract Background Data on changes in left atrial (LA) and left ventricular (LV) volumes after transcatheter mitral valve replacement (TMVR) are limited. Purpose This study sought to describe the anatomical and functional changes in left-sided cardiac chambers by computed tomography angiography (CTA) from baseline to 1-month after TMVR with Tendyne prosthesis. Methods We analyzed patients who underwent TMVR with Tendyne prosthesis (Abbott Structural, Menlo Park, CA) between 2015 and 2018. Changes in LV end-diastolic volume (LVEDV), ejection fraction (LVEF), mass (LV mass), LA volume and global longitudinal strain (GLS) were assessed at baseline and at 1-month after TMVR with CTA. Specific Tendyne implant characteristics were identified and correlated with remodeling changes. Results A total of 36 patients (mean age 73±8 years, 78% men, 86% secondary MR) were studied. There were significant decreases in LVEDV (268±68 vs. 240±66ml, p<0.001), LVEF (38±10 vs. 32±11%, p<0.001), LV mass (126±37 vs. 117±32g, p<0.001), LA volume (181±74 vs. 174±70 ml, p=0.027) and GLS (−12.6±5.1 vs. −9.5±4.0%, p<0.001) from baseline to 1-month follow-up. Favorable LVEDV reverse-remodeling occurred in the majority (30 of 36 patients, or 83%). Closer proximity of the Tendyne apical pad to the true apex was predictive of favorable remodeling (pad distance: 25.0±7.7 vs. 33.5±8.8mm, p=0.02 for those with and without favorable remodeling). Conclusions TMVR with Tendyne results in favorable left-sided chamber remodeling in the majority of patients treated, as detected on CTA at 1-month after implantation. CTA identifies the favorable post-TMVR changes, which could be related to specific characteristics of the device implantation. Funding Acknowledgement Type of funding source: None


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