scholarly journals Mitral Regurgitation International Database (MIDA) Score Predicts Outcome in Patients With Heart Failure Undergoing Transcatheter Edge‐to‐Edge Mitral Valve Repair

Author(s):  
Refik Kavsur ◽  
Maximilian Spieker ◽  
Christos Iliadis ◽  
Clemens Metze ◽  
Moritz Transier ◽  
...  

Background Optimizing risk stratification in patients undergoing transcatheter mitral valve repair is an ongoing challenge. The Mitral Regurgitation International Database (MIDA) score represents a user‐friendly mortality risk stratification tool that is validated on a large‐scale registry of patients with degenerative mitral regurgitation (MR). We here assessed the potential benefit of the MIDA risk score for patients with functional or degenerative MR undergoing transcatheter mitral valve repair. Methods and Results In total, 680 patients undergoing MitraClip implantation were stratified according to MIDA score tertiles into a low (0–7), intermediate (8–9), and a high (10–12) MIDA score group. MR was assessed in follow‐up echocardiograms in 416 patients at 323±169 days after transcatheter mitral valve repair. During 2‐year follow‐up, 8.2% (15/182) of patients with low, 21.3% (64/300) with intermediate, and 26.3% (52/198) with high MIDA score died (log‐rank test P <0.001). Hazard of all‐cause mortality increased by 13% (95% CI, 3%–25%) with every additional point of the MIDA score. Subanalysis of 431 patients with functional MR showed similar results. Furthermore, rates of a combined end point of mortality and hospitalization for heart failure were higher with increasing MIDA score (30% [54/182], 38% [113/300] and 48% [94/198], respectively, log‐rank test P =0.001). Frequency of residual MR ≥II at follow‐up increased with increasing MIDA score group (33%, 44%, and 59%, respectively, P <0.001). Conclusions The MIDA mortality risk score maintains its predictive utility in patients undergoing transcatheter mitral valve repair, regardless of MR cause. Moreover, it was predictive of worse event‐free survival regarding a combined end point of mortality and hospitalization for heart failure, and was associated with postprocedural residual MR ≥II and MR recurrence.

2019 ◽  
Vol 73 (17) ◽  
pp. 2123-2132 ◽  
Author(s):  
Suzanne V. Arnold ◽  
Khaja M. Chinnakondepalli ◽  
John A. Spertus ◽  
Elizabeth A. Magnuson ◽  
Suzanne J. Baron ◽  
...  

Author(s):  
Ioanna Kosmidou ◽  
JoAnn Lindenfeld ◽  
William T. Abraham ◽  
Michael J. Rinaldi ◽  
Samir R. Kapadia ◽  
...  

Circulation ◽  
2019 ◽  
Vol 140 (9) ◽  
pp. 779-789 ◽  
Author(s):  
Milton Packer ◽  
Paul A. Grayburn

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.


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
David Shavelle ◽  
J Thomas T Heywood ◽  
Ajay Srivastava ◽  
Rahul Agarwal ◽  
Julie Prillinger ◽  
...  

Introduction: Transcatheter mitral valve repair (TMVr) reduces heart failure (HF) hospitalizations and improves survival in patients with HF and secondary mitral regurgitation (MR), but the hemodynamics of TMVr are not well studied. Patients with a pulmonary artery pressure (PAP) monitor (CardioMEMS TM ) provide a unique opportunity to study ambulatory hemodynamics following TMVr. Methods: TMVr implants occurring July 2014 to Sept 2019 were identified from Medicare claims data and were linked to PAP data from CardioMEMS TM . Patients with CardioMEMS TM implant ≥3 mo prior to TMVr and with ≥3 mo PAP data post TMVr were included. Diastolic PAP (DPAP) and area under the curve (AUC) at 3 and 6 mo post TMVr were compared to 4 wks prior to TMVr (baseline). Analysis was repeated for those with elevated baseline DPAP, defined as ≥15 mmHg. Results: The cohort included 32 patients (74 ± 8 yrs, 66% male) with high prevalence of hypertension, ischemic heart disease, AF, and kidney disease. LVEF was available in 17 patients (32 ± 14%). Compared to baseline, DPAP was significantly lower at 3 mo (-2.1 ± 4.7 mmHg, p=0.019) and remained lower at 6 mo post TMVr (-2.5 ± 6.7 mmHg, p=0.070). AUC showed a cumulative reduction in DPAP of -129 ± 257 mmHg-days (p=0.008) at 3 mo and -438 ± 719 mmHg-days (p=0.005) at 6 mo post TMVr. Similar trends were observed for mean PAP. Sub-group analyses suggested lower DPAP after TMVr in patients with elevated baseline DPAP (3 mo Δ: -2.6 ± 4.6 mmHg, p=0.009; 6 mo Δ: -3.8 ± 6.3 mmHg, p=0.014, 3 mo AUC: -158 ± 255 mmHg-day, p=0.004; 6 mo AUC: -575 ± 721 mmHg-day, p=0.002). Conclusions: In CardioMEMS TM -monitored patients with significant MR, TMVr is associated with a clinically relevant and sustained reduction in DPAP, including patients with an elevated baseline DPAP. Although the clinical and survival benefits of TMVr are paramount, these data add to our understanding of the hemodynamic improvements of TMVr. CardioMEMS TM is an additional tool to improve filling pressures in those with HF.


2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
T Kimura ◽  
N Watanabe ◽  
S Nishino ◽  
N Kuriyama ◽  
K Ashikaga ◽  
...  

Abstract Background The latest study has demonstrated the better outcomes of transcatheter mitral-valve repair in patients with decompensated heart failure (HF) and left ventricular (LV) dysfunction. However, it is unknown whether earlier intervention for mitral regurgitation (MR) can improve the outcome of myocardial infarction (MI). Purpose The aim of this study was to investigate the prognostic value of ischemic MR (IMR) at 6-month after MI for the later incidence of HF and death. Methods We retrospectively examined 723 MI patients who were admitted to our hospital. 95.5% of the patients were treated by primary coronary intervention. Patients were clinically followed-up at 6-month after the onset of MI, and divided into 3 groups according to the degree of IMR, i.e. No/Trivial IMR group (n = 528), Mild IMR group (n= 154) and ≥Moderate IMR group (n= 41). We compared the later incidence of hospitalization for HF and all-cause death at 3-year for each group. Results The studied population had preserved ejection fraction (EF) (56.9 ± 10.7%, average) and mostly asymptomatic at 6-month after MI. All-cause mortality within 3-year was higher in patients with ≥Moderate IMR (p &lt; 0.001), and the incidence of hospitalization for HF was significantly higher depends on the degree of IMR at 6-month (p &lt; 0.001). Multivariate analysis showed EF and the degree of IMR were the independent predictor for the hospitalization for HF. Conclusions IMR at 6-month after MI was associated with the later adverse events despite relatively preserved LV contraction without heart failure symptoms at the index examination. Early intervention for IMR potentially benefit for the better outcome. Abstract P292 Figure. Caplan-Meier estimates on adverse events


PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0245637
Author(s):  
Maximilian Spieker ◽  
Jonathan Marpert ◽  
Shazia Afzal ◽  
Athanasios Karathanos ◽  
Daniel Scheiber ◽  
...  

Aims To evaluate whether CMR-derived RV assessment can facilitate risk stratification among patients undergoing transcatheter mitral valve repair (TMVR). Background In patients undergoing TMVR, only limited data exist regarding the role of RV function. Previous studies assessed the impact of pre-procedural RV dysfunction stating that RV failure may be associated with increased cardiovascular mortality after the procedure. Methods Sixty-one patients underwent CMR, echocardiography and right heart catheterization prior TMVR. All-cause mortality and heart failure hospitalizations were assessed during 2-year follow-up. Results According to RV ejection fraction (RVEF) <46%, 23 patients (38%) had pre-existing RV dysfunction. By measures of RV end-diastolic volume index (RVEDVi), 16 patients (26%) revealed RV dilatation. Nine patients (15%) revealed both. RV dysfunction was associated with increased right and left ventricular volumes as well as reduced left ventricular (LV) ejection fraction (all p<0.05). During follow-up, 15 patients (25%) died and additional 14 patients (23%) were admitted to hospital due to heart failure symptoms. RV dysfunction predicted all-cause mortality even after adjustment for LV function. Similarly, RVEDVi was a predictor of all-cause mortality even after adjustment for LVEDVi. Kaplan-Meier survival analysis unraveled that, among patients presenting with CMR indicative of both, RV dysfunction and dilatation, the majority (78%) experienced an adverse event during follow-up (p<0.001). Conclusion In patients undergoing TMVR, pre-existing RV dysfunction and RV dilatation are associated with reduced survival, in progressive additive fashion. The assessment of RV volumes and function by CMR may aid in risk stratification prior TMVR in these high-risk patients.


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