scholarly journals Transcatheter Mitral Valve Repair in Patients With and Without Cardiac Resynchronization Therapy

2020 ◽  
Vol 13 (11) ◽  
Author(s):  
Ioanna Kosmidou ◽  
JoAnn Lindenfeld ◽  
William T. Abraham ◽  
Saibal Kar ◽  
D. Scott Lim ◽  
...  
Keyword(s):  
Heart Failure ◽  
Mitral Valve ◽  
Mitral Regurgitation ◽  
Cardiac Resynchronization Therapy ◽  
Cardiac Resynchronization ◽  
Resynchronization Therapy ◽  
Valve Repair ◽  
Transcatheter Mitral Valve Repair ◽  
Secondary Mitral Regurgitation ◽  
And Control

Background: In the COAPT trial (Cardiovascular Outcomes Assessment of the MitraClip Percutaneous Therapy for Heart Failure Patients With Functional Mitral Regurgitation), treatment of heart failure (HF) patients with moderate-severe or severe secondary mitral regurgitation with transcatheter mitral valve repair (TMVr) using the MitraClip plus guideline-directed medical therapy (GDMT) reduced 2-year rates of HF hospitalization and all-cause mortality compared with GDMT alone. Whether the benefits of the MitraClip extend to patients with previously implanted cardiac resynchronization therapy (CRT) is unknown. We sought to examine the effect of prior CRT in patients enrolled in COAPT. Methods: Patients (N=614) with moderate-severe or severe secondary mitral regurgitation who remained symptomatic despite maximally tolerated doses of GDMT were randomized 1:1 to the MitraClip (TMVr arm) versus GDMT only (control arm). Outcomes were assessed according to prior CRT use. Results: Among 614 patients, 224 (36.5%) had prior CRT (115 and 109 randomized to TMVr and control, respectively) and 390 (63.5%) had no CRT (187 and 203 randomized to TMVr and control, respectively). Patients with CRT had similar 2-year rates of the composite of death or HF hospitalization compared with those without CRT (57.6% versus 55%, P =0.32). Death or HF hospitalization at 2 years was lower with TMVr versus control treatment in patients with prior CRT (48.6% versus 67.2%, hazard ratio, 0.60 [95% CI, 0.42–0.86]) and without CRT (42.5% versus 66.9%, hazard ratio, 0.52 [95% CI, 0.39–0.69]; adjusted P interaction =0.23). The effects of TMVr with the MitraClip on reducing the 2-year rates of all-cause death (adjusted P interaction =0.14) and HF hospitalization (adjusted P interaction =0.82) were also consistent in patients with and without CRT as were improvements in quality-of-life and exercise capacity. Conclusions: In the COAPT trial, TMVr with the MitraClip improved the 2-year prognosis of patients with HF and moderate-severe or severe secondary mitral regurgitation who remained symptomatic despite maximally tolerated GDMT, regardless of prior CRT implantation. Registration: URL: https://www.clinicaltrials.gov . Unique identifier: NCT01626079.

scholarly journals The role of three dimensional transeosephageal echocardiography in predicting the effect of cardiac resynchronization therapy on mitral regurgitation in patients with low ejection fraction heart fail

EP Europace ◽  
2021 ◽  
Vol 23 (Supplement_3) ◽  
Author(s):  
A Demirtola ◽  
TS Tan ◽  
A Mammadli ◽  
IM Akbulut ◽  
I Dincer
Keyword(s):  
Heart Failure ◽  
Mitral Valve ◽  
Mitral Regurgitation ◽  
Cardiac Resynchronization Therapy ◽  
Left Ventricular ◽  
Cardiac Resynchronization ◽  
Functional Mitral Regurgitation ◽  
Posterior Leaflet ◽  
Resynchronization Therapy ◽  
Significant Difference

Abstract Funding Acknowledgements Type of funding sources: None. Purpose Cardiac resynchronization therapy (CRT) has  a positive effect on the improvement of functional mitral regurgitation in patients with low ejection heart failure. However geometric changes in the mitral valve apparatus, subvalvular structures and their contribution to  the improvement of mitral regurgitation after CRT have not  been clearly defined. The aim of our study was to evaluate the geometric parameters of mitral valve apparatus measured with 3Dimensional (3D) transesophageal echocardiography (TEE) before CRT implantation and to determine the parameters predicting the improvement of mitral regurgitation after CRT. Methods Thirty patients with moderate or severe mitral regurgitation with low EF heart failure planned for CRT implantation and had an indication for TEE were included in the study. Effective regurgitant orifice (ERO) and regurgitant volume (RV) measurements were performed before CRT implantation. Detailed quantitative measurements of mitral valve were done from recorded images by 3D TEE. ERO, RV measurements were repeated to evaluate mitral regurgitation at the end of 3rd month. Results There were no significant changes in left ventricular EF and left ventricular diameters at the end of 3rd month, whereas ERO and RV values were decreased. A statistically significant difference was found in  posterior leaflet angle between mitral regurgitation responder and non-responder groups.  (28,93 ± 8,41 vs 41,25 ± 10,90, p = 0,006). Conclusion Heart failure patients with moderate or severe functional mitral regurgitation who underwent CRT implantation were found to have lower posterior leaflet angle measured by 3D TEE in the patient group whose mitral regurgitation improved after CRT. Abstract Figure.

scholarly journals Health Status After Transcatheter Mitral-Valve Repair in Heart Failure and Secondary Mitral Regurgitation

2019 ◽  
Vol 73 (17) ◽  
pp. 2123-2132 ◽  
Author(s):  
Suzanne V. Arnold ◽  
Khaja M. Chinnakondepalli ◽  
John A. Spertus ◽  
Elizabeth A. Magnuson ◽  
Suzanne J. Baron ◽  
...  
Keyword(s):  
Heart Failure ◽  
Health Status ◽  
Mitral Valve ◽  
Mitral Regurgitation ◽  
Mitral Valve Repair ◽  
Valve Repair ◽  
Transcatheter Mitral Valve Repair ◽  
Secondary Mitral Regurgitation

scholarly journals The role of three-dimensional transesophageal echocardiography in predicting the effect of cardiac resynchronization therapy on mitral regurgitation in patients with low ejection fraction heart failure

2021 ◽  
Author(s):  
Ayse Demirtola ◽  
Turkan Tan ◽  
Anar Mammadli ◽  
irem Muge Akbulut ◽  
Demet Gerede ◽  
...  
Keyword(s):  
Heart Failure ◽  
Mitral Valve ◽  
Mitral Regurgitation ◽  
Ejection Fraction ◽  
Cardiac Resynchronization Therapy ◽  
Left Ventricular ◽  
Cardiac Resynchronization ◽  
Functional Mitral Regurgitation ◽  
Posterior Leaflet ◽  
Resynchronization Therapy

Purpose: Cardiac resynchronization therapy (CRT) has a positive effect on the improvement of functional mitral regurgitation in patients with heart failure with reduced ejection fraction. However geometric changes in the mitral valve apparatus, subvalvular structures and their contribution to the improvement of mitral regurgitation after CRT have not been clearly defined. The aim of our study was to evaluate the geometric parameters of mitral valve apparatus measured with 3Dimensional (3D) transesophageal echocardiography (TEE) before CRT implantation and to determine the parameters predicting the improvement of mitral regurgitation after CRT. Methods: In this prospective study thirty patients with moderate or severe mitral regurgitation with low EF heart failure planned for CRT implantation and had an indication for TEE were included. Effective regurgitant orifice (ERO) and regurgitant volume (RV) measurements were performed before CRT implantation. Detailed quantitative measurements of mitral valve were done from recorded images by 3D TEE. ERO, RV measurements were repeated to evaluate mitral regurgitation at the end of 3rd month. Results: There were no significant changes in left ventricular EF and left ventricular diameters at third month follow-up, whereas ERO and RV values were decreased. posterior leaflet angle was found higher in non-responder group compared to responder group. (28,93 ± 8,41 vs 41,25 ± 10,90, p = 0,006). Conclusion: Heart failure patients with moderate or severe functional mitral regurgitation who underwent CRT implantation were found lower posterior leaflet angle which was measured by 3D TEE in the patient group whose mitral regurgitation improved after CRT.

scholarly journals Contrasting Effects of Pharmacological, Procedural, and Surgical Interventions on Proportionate and Disproportionate Functional Mitral Regurgitation in Chronic Heart Failure

Circulation ◽  
2019 ◽  
Vol 140 (9) ◽  
pp. 779-789 ◽  
Author(s):  
Milton Packer ◽  
Paul A. Grayburn
Keyword(s):  
Heart Failure ◽  
Chronic Heart Failure ◽  
Mitral Valve ◽  
Mitral Regurgitation ◽  
Mitral Valve Repair ◽  
Cardiac Resynchronization ◽  
Functional Mitral Regurgitation ◽  
Valve Repair ◽  
Transcatheter Mitral Valve Repair ◽  
Lv Volumes

Two distinct pathways can lead to functional mitral regurgitation (MR) in patients with chronic heart failure and a reduced ejection fraction. When remodeling and enlargement of the left ventricle (LV) cause annular dilatation and tethering of the mitral valve leaflets, there is a linear relationship between LV end-diastolic volume and the effective regurgitant orifice area of the mitral valve. These patients, designated as having proportionate MR, respond favorably to treatments that lead to reversal of LV remodeling and a decrease in LV volumes (eg, neurohormonal antagonists and LV assist devices), but they may not benefit from interventions that are directed only at the mitral valve leaflets (eg, transcatheter mitral valve repair). In contrast, when ventricular dyssynchrony causes functional MR attributable to unequal contraction of the papillary muscles, the magnitude of regurgitation is greater than that predicted by LV volumes. These patients, designated as having severe but disproportionate MR, respond favorably to treatments that are directed to the mitral valve leaflets or their supporting structures (eg, cardiac resynchronization or transcatheter mitral valve repair), but they may derive little benefit from interventions that act only to reduce LV cavity size (eg, pharmacological treatments). This novel conceptual framework reflects the important interplay between LV geometry and mitral valve function in determining the clinical presentation of patients, and it allows characterization of the determinants of functional MR to guide the most appropriate therapy in the clinical setting.

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