scholarly journals Transcatheter Repair and Replacement Technologies for Mitral Regurgitation: a European Perspective

2021 ◽  
Vol 23 (9) ◽  
Author(s):  
Joris F. Ooms ◽  
Nicolas M. Van Mieghem

Abstract Purpose of Review We aimed to picture the contemporary landscape of available catheter-based repair and replacement solutions for mitral regurgitation (MR) in Europe. Recent Findings Edge-to-edge repair remains the dominant technique for transcatheter mitral valve repair especially in the context of secondary mitral regurgitation. Two recent randomized trials reported seemingly contradicting clinical results with transcatheter edge-to-edge repair for patients with heart failure and severe secondary MR. A proportionality framework related to secondary MR was proposed to help explain inconsistencies but requires further research. (In)Direct annuloplasty primarily aims to correct secondary MR; however, the scientific basis seems less robust. One dedicated transcatheter heart valve has the CE mark for mitral valve replacement but requires transapical access. Balloon-expandable transcatheter aortic valve platforms are emerging for transvenous transseptal mitral replacement in the context of mitral annular calcification, a failing surgical mitral bioprosthesis, or annuloplasty. Advanced computed tomography imaging techniques improved pre-procedural planning and introduced the option for modeling and simulation. Summary Development of a toolbox of catheter-based technologies, complementary imaging modalities, and refined patient selection offer novel perspectives to high-risk patients with primary or secondary MR. Clinical trials are required to help formulate evidence-based guidelines for the management of mitral valve disease.

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
G Tarantini ◽  
L Nai Fovino ◽  
P Leprince ◽  
O Darremont ◽  
M Urena ◽  
...  

Abstract Background/Introduction Coronary artery disease (CAD) and aortic stenosis often coexist. Transcatheter aortic valve implantation (TAVI) is emerging as a favorable treatment for younger and lower surgical risk patients. The need for coronary angiography (CA) and percutaneous coronary intervention (PCI) after TAVI will thus increase. Purpose We retrospectively evaluated the outcome of PCI performed after TAVI with the balloon-expandable SAPIEN 3 transcatheter heart valve in the SOURCE 3 European registry. Methods Cardiovascular (CV) mortality was computed at 3 years for patients with PCI and for those without. Univariate and Cox multivariate models were developed to assess the potential impact of PCI on CV mortality. Results Out of 1939 TAVI patients, 44 (2.3%) underwent PCI within 3 years after TAVI (mean interval from TAVI: 428±341 days). Patients with PCI were 80.9 years old and 63.6% were male. They had higher baseline logistic EuroSCORE (22.6% vs. 18.3%, p=0.007), higher rate of prior CAD diagnosis (72.7% vs. 51.0%, p=0.005), prior PCI (45.5% vs. 33.6%, p=0.108) and previous CABG (25.0% vs. 11.0%, p=0.013) than other patients of the cohort. Coronary access (ability to cannulate selectively the coronaries) was feasible in 100% of patients; PCI was successful in all but one case. The univariate model showed that CV mortality was slightly higher in patients undergoing PCI compared with those without PCI (Hazard Ratio: 1.86 [0.96–3.59], p=0.07); CV mortality rate was even lower with the multivariate model (HR: 1.39, p=0.52). Conclusions Interventions of CA and PCI after TAVI with a balloon-expandable valve was feasible and successful in all but one case in this large European registry. There was a trend towards a worse CV mortality at 3 years in patients needing PCI, which did not reach statistical significance likely because of the low incidence of PCI in our TAVI population. Acknowledgement/Funding The SOURCE 3 registry is sponsored by Edwards Lifesciences


2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
H Horinouchi ◽  
T Nagai ◽  
Y Ohno ◽  
T Murakami ◽  
J Miyamoto ◽  
...  

Abstract Background Transcatheter aortic valve implantation (TAVI) results in an immediate and greater aortic pressure gradient improvement in patients with severe aortic valve stenosis (AS), and induces early left ventricular (LV) mass regression, which may be related to favorable effects on the mid to long term outcomes. However, the extent of LV mass regression after unloading of chronic pressure overload is varying, and its determinants are still unknown. Thus, the study aims to identify echocardiographic determinants of LV mass regression following TAVI. Methods We retrospectively screened all TAVI procedures in symptomatic AS from 2017 to 2019, and selected 74 successful TAVI cases that had serial echocardiographic studies both at the baseline and at the mid-term follow-up (4 to 6 months after the procedure). Through the digitalized medical records, clinical and echocardiographic data as well as angiographic grading (0-3) of post-procedure paravalvular leakage (PVL) were obtained. LV mass was calculated by using Cube formula. Thus, the extent of LV mass regression was defined as the differences of left ventricular mas index (LVMI) between at the baseline and at the follow-up (ΔLVMI). Quantification of the baseline mitral valve regurgitant volume was performed by stroke volume method with pulmonic site measurement on the assumption of no pre-existing intra/extra cardiac shunt. Cases with prior mitral valve replacement were excluded. Results At the post-procedure angiogram, only 3 cases had significant PVL (grade 2≤). At the mid-term follow–up, average LVMI decreased significantly from the baseline (165 ± 38 g/m2vs 140 ± 37 mg/ m2, P < 0.0001) and 57 cases (70%) experienced the reduction of LVMI, although average relative wall thickness (2 × posterior wall thickness/left ventricular diastolic dimension) did not change (0.565 ± 0.135 vs 0.586 ± 0.168, P = 0.314). Among the baseline clinical and echocardiographic variables, the baseline peak A wave velocity, E/A ratio, mitral valve regurgitant volume and LVMI revealed simple correlation with ΔLVMI (γ=-0.298, p = 0.0188;γ=0.251, P = 0.0417;γ=0.354, p = 0.0041;γ=0.375, p < 0.0010; respectively), whereas no correlation was observed in angiographic PVL grade. Stepwise multiple regression analysis demonstrated baseline mitral valve regurgitant volume and LVMI as the determinants of ΔLVMI (β=0.344, p = 0.032; β=0.335 P < 0.0001; respectively). Conclusions Pre-existing mitral regurgitation has an impact on the mid–term left ventricular mass regression following TAVI. In severe AS, mitral regurgitation might be functioning as an afterload adjuster, and thus, produces protective effects on LV structure.


2017 ◽  
Vol 06 (01) ◽  
pp. e29-e31 ◽  
Author(s):  
Daniel Reichart ◽  
Niklas Schofer ◽  
Florian Deuschl ◽  
Andreas Schaefer ◽  
Stefan Blankenberg ◽  
...  

Background Transcatheter heart valve (THV) therapies have shown to be an alternative to surgical valve replacement, especially in high-risk patients requiring redo surgery. However, reports of transcatheter-based interventions in tricuspid valve position are scarce. Case Description Here, we report a case of successful concomitant transcatheter aortic valve-in-valve (ViV) and tricuspid valve-in-ring (ViR) procedures using a 23-mm CoreValve Evolut R THV (Medtronic, Inc., Minneapolis, Minnesota, United States) in aortic position and a 29-mm SAPIEN3 (Edwards Lifesciences, Inc., Irvine, California, United States) THV in tricuspid position. Conclusion This case demonstrates feasibility of concomitant transcatheter aortic ViV and tricuspid ViR procedures.


2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Antonios Pitsis ◽  
Nikolaos Tsotsolis ◽  
Harisios Boudoulas ◽  
Konstantinos Dean Boudoulas

Abstract Background Minimally invasive aortic valve procedures through a hemi-sternotomy or a right anterior mini-thoracotomy have gained popularity over the last several years. Totally endoscopic aortic valve replacement (TEAVR) is an innovative and a less invasive (incision-wise) surgical aortic valve replacement technique. The operative steps of TEAVR have been reported previously from our group. Mitral regurgitation (MR) frequently accompanies aortic valve disease that at times may also require repair. Totally endoscopic surgery in such cases has not been tested. Presentation of the technique We present a surgical technique for a totally endoscopic approach to aortic valve replacement and concomitant mitral valve repair for primary and secondary MR. An aortotomy incision was used avoiding an atriotomy, which results in an increase in cross-clamp (XC) and cardiopulmonary bypass (CPB) times that could be associated with higher mortality and morbidity. Neochords (artificial chordae tendineae) were used for primary MR and an edge-to-edge approach for secondary MR. Conclusion TEAVR and concomitant mitral valve repair can be performed successfully with reasonable XC and CPB times with excellent short-term results.


2021 ◽  
Vol 8 ◽  
Author(s):  
Tanya Salvatore ◽  
Fabrizio Ricci ◽  
George D. Dangas ◽  
Bushra S. Rana ◽  
Laura Ceriello ◽  
...  

Secondary mitral regurgitation (MR) occurs despite structurally normal valve apparatus due to an underlying disease of the myocardium leading to disruption of the balance between tethering and closing forces with ensuing failure of leaflet coaptation. In patients with heart failure (HF) and left ventricular dysfunction, secondary MR is independently associated with poor outcome, yet prognostic benefits related to the correction of MR have remained elusive. Surgery is not recommended for the correction of secondary MR outside coronary artery bypass grafting. Percutaneous mitral valve repair (PMVR) with MitraClip implantation has recently evolved as a new transcatheter treatment option of inoperable or high-risk patients with severe MR, with promising results supporting the extension of guideline recommendations. MitraClip is highly effective in reducing secondary MR in HF patients. However, the derived clinical benefit is still controversial as two randomized trials directly comparing PMVR vs. optimal medical therapy in severe secondary MR yielded virtually opposite conclusions. We reviewed current evidence to identify predictors of PMVR-related outcomes in secondary MR useful to improve the timing and the selection of patients who would derive maximal benefit from MitraClip intervention. Beyond mitral valve anatomy, optimal candidate selection should rely on a comprehensive diagnostic workup and a fine-tuned risk stratification process aimed at (i) recognizing the substantial heterogeneity of secondary MR and its complex interaction with the myocardium, (ii) foreseeing hemodynamic consequences of PMVR, (iii) anticipating futility and (iv) improving symptoms, quality of life and overall survival.


Sign in / Sign up

Export Citation Format

Share Document