scholarly journals Mitral Valve Repair for Functional Mitral Regurgitation in End-Stage Dilated Cardiomyopathy

Circulation ◽  
2005 ◽  
Vol 112 (9_supplement) ◽  
Author(s):  
Michele De Bonis ◽  
Elisabetta Lapenna ◽  
Giovanni La Canna ◽  
Eleonora Ficarra ◽  
Marco Pagliaro ◽  
...  

Background— The aim of this study was to assess the results of mitral valve (MV) repair in functional mitral regurgitation because of end-stage dilated cardiomyopathy (DCM). Methods and Results— Seventy-seven patients with end-stage idiopathic (26 patients) or ischemic (51 patients) DCM underwent MV repair for functional mitral regurgitation (3 to 4+/4+). Fifty-eight patients (75.3%) were in New York Heart Association class III, and 19 (24.6%) were in IV. In 23 patients (29.8%) with a coaptation depth <1 cm, an isolated undersized annuloplasty was used. In the remaining 54 (70.1%), with a coaptation depth ≥1 cm, the “edge-to-edge” technique was associated with the annuloplasty. In most of the cases (88.3%), a complete rigid/semirigid ring was used. Concomitant coronary artery bypass graft was performed in 39 patients (50.6%). Hospital mortality was 3.8% (3 of 77). Actuarial survival was 90.7±3.64%, and freedom from cardiac events was 81.8±7.96% at 2.7 years. At a mean follow-up of 18.4±9.8 months (range, 1 month to 5 years) New York Heart Association class improved from 3.4±0.4 to 1.4±0.6 ( P <0.0001). Mitral repair failure (recurrence of MR ≥3+/4+) was documented in 7 patients (9%): 2 in the edge-to-edge (2 of 54, 3.7%) and 5 in the isolated annuloplasty group (5 of 23, 21.7%) ( P =0.03). Freedom from repair failure at 1.5 years was 95.0±3.4% and 77±12.1%, respectively ( P =0.04). The absence of the edge-to-edge was the only predictor of repair failure ( P =0.03). When residual MR was absent or mild, a reverse left ventricular remodeling was clearly documented. Conclusions— In patients with end-stage DCM, MV repair is feasible with low hospital mortality and important symptomatic improvement. The association of the edge-to-edge technique to the undersized annuloplasty can significantly improve the durability of the repair.

Author(s):  
Zouhair Rahhab ◽  
David Scott Lim ◽  
Stephen H. Little ◽  
Maurizio Taramasso ◽  
Shingo Kuwata ◽  
...  

Background Recurrence of mitral regurgitation (MR) after surgical mitral valve repair (SMVR) varies and may require reoperation. Redo mitral valve surgery can be technically challenging and is associated with increased risk of mortality and morbidity. We aimed to assess the feasibility and safety of MitraClip as a treatment strategy after failed SMVR and identify procedure modifications to overcome technical challenges. Methods and Results This international multicenter observational retrospective study collected information for all patients from 16 high‐volume hospitals who were treated with MitraClip after failed SMVR from October 29, 2009, until August 1, 2017. Data were anonymously collected. Technical and device success were recorded per modified Mitral Valve Academic Research Consortium criteria. Overall, 104 consecutive patients were included. Median Society of Thoracic Surgeons score was 4.5% and median age was 73 years. At baseline, the majority of patients (82%) were in New York Heart Association class ≥III and MR was moderate or higher in 86% of patients. The cause of MR pre‐SMVR was degenerative in 50%, functional in 35%, mixed in 8%, and missing/unknown in 8% of patients. The median time between SMVR and MitraClip was 5.3 (1.9–9.7) years. Technical and device success were 90% and 89%, respectively. Additional/modified imaging was applied in 21% of cases. An MR reduction of ≥1 grade was achieved in 94% of patients and residual MR was moderate or less in 90% of patients. In‐hospital all‐cause mortality was 2%, and 86% of patients were in New York Heart Association class ≤II. Conclusions MitraClip is a safe and less invasive treatment option for patients with recurrent MR after failed SMVR. Additional/modified imaging may help overcome technical challenges during leaflet grasping.


Author(s):  
Shelby D. Reed ◽  
Angelyn O. Fairchild ◽  
F. Reed Johnson ◽  
Juan Marcos Gonzalez ◽  
Robert J. Mentz ◽  
...  

Background: The Food and Drug Administration’s Center for Devices and Radiological Health issued Guidance in 2016 on generating patient preference information to aid evaluation of medical devices. Consistent with this guidance, we aimed to provide quantitative patient preference evidence on benefit-risk tradeoffs relevant to transcatheter mitral valve repair versus medical therapy for patients with heart failure and symptomatic secondary mitral regurgitation. Methods: A discrete-choice experiment survey was designed to quantify patients’ tolerance for 30-day mortality or serious bleeding risks to achieve improvements in physical functioning or reductions in heart failure hospitalizations. Two samples were recruited: an online US panel of individuals reporting a diagnosis of heart failure (n=244) and patients with heart failure treated at Duke University Health System (n=175). Random-effects logit regression was used to model treatment choices as a function of benefit and risk levels. Results: Across both samples, approximately one-quarter (23.5%) consistently chose device profiles offering the higher level of physical functioning despite mortality and bleeding risks as high as 10%. Among respondents who at least once chose a device profile offering a lower level of functioning, improvement in physical functioning equivalent to a change from New York Heart Association class IV to III was ≈6 times more preferred than a change from New York Heart Association class III to II. Estimated discrete-choice experiment utility gains and losses revealed that respondents would accept up to a 9.7 percentage-point (95% CI, 8.2%–13.3%) increase in risk of 30-day mortality with devices that could improve functioning from New York Heart Association class IV to III, or up to 2.0% (95% CI, 1.4%–2.7%) for an improvement from New York Heart Association class III to II. Conclusions: Severity of heart failure symptoms influences patients’ willingness to accept risks associated with mitral valve medical devices. These findings can inform shared decision-making discussions with patients who are being evaluated for transcatheter mitral valve repair.


Author(s):  
Arash Khamooshian ◽  
Marc P. Buijsrogge ◽  
Frederiek De Heer ◽  
Paul F. Gründeman

In the past decades, more than 40 mitral valve annuloplasty rings of various shapes and consistency were marketed for mitral regurgitation (MR), although the effect of ring type on clinical outcome remains unclear. Our objective was to review the literature and apply a simplification method to make rings of different shapes and rigidity more comparable. We studied relevant literature from MEDLINE and EMBASE databases related to clinical studies as well as animal and finite element models. Annuloplasty rings were clustered into 3 groups as follows: rigid (R), flexible (F), and semirigid (S). Only clinical articles regarding degenerative (DEG) or ischemic/dilated cardiomyopathy (ICM) MR were included and stratified into these groups. A total of 37 rings were clustered into R, F, and S subgroups. Clinical studies with a mean follow-up of less than 1 year and a reported mean etiology of valve incompetence of less than 60% were excluded from the analysis. Forty-one publications were included. Preimplant and postimplant end points were New York Heart Association class, left ventricular ejection fraction (LVEF), left ventricular end-systolic dimension (LVESD), and left ventricular end-diastolic dimension (LVEDD). Statistical analysis included paired-samples t test and analysis of variance with post hoc Bonferroni correction. P < 0.05 indicated statistical difference. Mean ± SD follow-up was 38.6 ± 27 and 29.7 ± 13.2 months for DEG and ICM, respectively. In DEG, LVEF remained unchanged, and LVESD decreased in all subgroups. In our analysis, LVEDD decreased only in F and R, and S did not change; however, the 4 individual studies showed a significant decline. In ICM, New York Heart Association class improved in all subgroups, and LVEF increased. Moreover, LVESD and LVEDD decreased only in F and S; R was underpowered (1 study). No statistical difference among R, F, and S in either ICM or DEG could be detected for all end points. Overall, owing to underpowered data sets derived from limited available publications, major statistical differences in clinical outcome between ring types could not be substantiated. Essential end points such as recurrent MR and survival were incomparable. In conclusion, ring morphology and consistency do not seem to play a major clinical role in mitral valve repair based on the present literature. Hence, until demonstrated otherwise, surgeons may choose their ring upon their judgment, tailored to specific patient needs.


Author(s):  
Luca Testa ◽  
Mauro Agnifili ◽  
Nicolas M. Van Mieghem ◽  
Didier Tchétché ◽  
Anita W. Asgar ◽  
...  

Background: Transcatheter aortic valve replacement (TAVR) has determined a paradigm shift in the treatment of patients with severe aortic stenosis. However, the durability of bioprostheses is still a matter of concern, and little is known about the management of degenerated TAV. We sought to evaluate the outcomes of patients with a degenerated TAV treated by means of a second TAVR. Methods: The TRANSIT is an international registry that included cases of degenerated TAVR from 28 centers. Among around 40 000 patients treated with TAVR in the participating centers, 172 underwent a second TAVR: 57 (33%) for a mainly stenotic degenerated TAV, 97 (56%) for a mainly regurgitant TAV, and 18 (11%) for a combined degeneration. Overall, the rate of New York Heart Association class III/IV at presentation was 73.5%. Results: Valve Academic Research Consortium 2 device success rate was 79%, as a consequence of residual gradient (14%) or regurgitation (7%). At 1 month, the overall mortality rate was 2.9%, while rates of new hospitalization and New York Heart Association class III/IV were 3.6% and 7%, respectively, without significant difference across the groups. At 1 year, the overall mortality rate was 10%, while rates of new hospitalization and New York Heart Association class III/IV were 7.6% and 5.8%, respectively, without significant difference across the groups. No cases of valve thrombosis were recorded. Conclusions: Selected patients with a degenerated TAV may be safely and successfully treated by means of a second TAVR. This finding is of crucial importance for the adoption of the TAVR technology in a lower risk and younger population. REGISTRATION: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT04500964.


Author(s):  
Christian Sohns ◽  
Konstantin Zintl ◽  
Yan Zhao ◽  
Lilas Dagher ◽  
Dietrich Andresen ◽  
...  

Background: Recent data demonstrate promising effects on left ventricular dysfunction and left ventricular ejection fraction (LVEF) improvement following ablation for atrial fibrillation (AF) in patients with heart failure. We sought to study the relationship between LVEF, New York Heart Association class on presentation, and the end points of mortality and heart failure admissions in the CASTLE-AF study (Catheter Ablation for Atrial Fibrillation With Heart Failure) population. Furthermore, predictors for LVEF improvement were examined. Methods: The CASTLE-AF patients with coexisting heart failure and AF (n=363) were randomized in a multicenter prospective controlled fashion to ablation (n=179) versus pharmacological therapy (n=184). Left ventricular function and New York Heart Association class were assessed at baseline (after randomization) and at each follow-up visit. Results: In the ablation arm, a significantly higher number of patients experienced an improvement in their LVEF to >35% at the end of the study (odds ratio, 2.17; P <0.001). Compared with the pharmacological therapy arm, both ablation patient groups with severe (<20%) or moderate/severe (≥20% and <35%) baseline LVEF had a significantly lower number of composite end points (hazard ratio [HR], 0.60; P =0.006), all-cause mortality (HR, 0.54; P =0.019), and cardiovascular hospitalizations (HR, 0.66; P =0.017). In the ablation group, New York Heart Association I/II patients at the time of treatment had the strongest improvement in clinical outcomes (primary end point: HR, 0.43; P <0.001; mortality: HR, 0.30; P =0.001). Conclusions: Compared with pharmacological treatment, AF ablation was associated with a significant improvement in LVEF, independent from the severity of left ventricular dysfunction. AF ablation should be performed at early stages of the patient’s heart failure symptoms.


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