Per-Ventricular Insertion of Melody Valve-in-Valve in the Neoaortic Position in a Single-Ventricle Patient

Author(s):  
Nicholas S. Clarke ◽  
Howaida El-Said ◽  
John J. Lamberti ◽  
Raghav A. Murthy

Percutaneous therapies for congenital heart disease have been evolving rapidly despite limited investment from industry. The Melody transcatheter pulmonary valve (Medtronic, Inc, Minneapolis, MN USA) replacement therapy represents an important advancement in this arena. It has been approved in the United States for use in the pulmonary position, on a Humanitarian Device Exemption status. Off-label use of the Melody transcatheter pulmonary valve has extended to the mitral, pulmonary, and aortic valves, especially in previously implanted valves with prosthetic valve degeneration. The single-ventricle patient poses additional challenges. However, there exists one report in the English literature of a patient undergoing Melody transcatheter neoaortic valve replacement after the patient developed severe neoaortic regurgitation after Fontan palliation. Here, we describe a patient with hypoplastic left heart syndrome, palliated with a Norwood modified Blalock-Taussig shunt, with a progressively regurgitant quadricusp neoaortic valve who underwent bioprosthetic valve replacement. There was early prosthetic valve degeneration after a year of bioprosthesis implantation. As he was declined for transplantation, he underwent successful perventricular Melody valve-in-valve replacement.

2013 ◽  
Vol 6 (3) ◽  
pp. 292-300 ◽  
Author(s):  
Doff B. McElhinney ◽  
Lee N. Benson ◽  
Andreas Eicken ◽  
Jacqueline Kreutzer ◽  
Robert F. Padera ◽  
...  

2020 ◽  
Vol 41 (29) ◽  
pp. 2747-2755 ◽  
Author(s):  
Sameer A Hirji ◽  
Edward D Percy ◽  
Cheryl K Zogg ◽  
Alexandra Malarczyk ◽  
Morgan T Harloff ◽  
...  

Abstract Aims We sought to perform a head-to-head comparison of contemporary 30-day outcomes and readmissions between valve-in-valve transcatheter aortic valve replacement (VIV-TAVR) patients and a matched cohort of high-risk reoperative surgical aortic valve replacement (re-SAVR) patients using a large, multicentre, national database. Methods and results We utilized the nationally weighted 2012–16 National Readmission Database claims to identify all US adult patients with degenerated bioprosthetic aortic valves who underwent either VIV-TAVR (n = 3443) or isolated re-SAVR (n = 3372). Thirty-day outcomes were compared using multivariate analysis and propensity score matching (1:1). Unadjusted, VIV-TAVR patients had significantly lower 30-day mortality (2.7% vs. 5.0%), 30-day morbidity (66.4% vs. 79%), and rates of major bleeding (35.8% vs. 50%). On multivariable analysis, re-SAVR was a significant risk factor for both 30-day mortality [adjusted odds ratio (aOR) of VIV-SAVR (vs. re-SAVR) 0.48, 95% confidence interval (CI) 0.28–0.81] and 30-day morbidity [aOR for VIV-TAVR (vs. re-SAVR) 0.54, 95% CI 0.43–0.68]. After matching (n = 2181 matched pairs), VIV-TAVR was associated with lower odds of 30-day mortality (OR 0.41, 95% CI 0.23–0.74), 30-day morbidity (OR 0.53, 95% CI 0.43–0.72), and major bleeding (OR 0.66, 95% CI 0.51–0.85). Valve-in-valve TAVR was also associated with shorter length of stay (median savings of 2 days, 95% CI 1.3–2.7) and higher odds of routine home discharges (OR 2.11, 95% CI 1.61–2.78) compared to re-SAVR. Conclusion In this large, nationwide study of matched high-risk patients with degenerated bioprosthetic aortic valves, VIV-TAVR appears to confer an advantage over re-SAVR in terms of 30-day mortality, morbidity, and bleeding complications. Further studies are warranted to benchmark in low- and intermediate-risk patients and to adequately assess longer-term efficacy.


2019 ◽  
Vol 10 (5) ◽  
pp. 624-627
Author(s):  
Jeremy L. Herrmann ◽  
Amanda R. Stram ◽  
John W. Brown

Prosthesis choice for aortic valve replacement (AVR) in children is frequently compromised by unavailability of prostheses in very small sizes, the lack of prosthetic valve growth, and risks associated with long-term anticoagulation. The Ross procedure with pulmonary valve autograft offers several advantages for pediatric and adult patients. We describe our current Ross AVR technique including replacement of the ascending aorta with a prosthetic graft. The procedure shown in the video involves an adult-sized male with a bicuspid aortic valve, mixed aortic stenosis and insufficiency, and a dilated ascending aorta.


2019 ◽  
Vol 12 (13) ◽  
pp. 1217-1226 ◽  
Author(s):  
Matthew Miller ◽  
Mandy Snyder ◽  
Benjamin D. Horne ◽  
James R. Harkness ◽  
John R. Doty ◽  
...  

Circulation ◽  
2018 ◽  
Vol 138 (Suppl_1) ◽  
Author(s):  
Veronica Toro Arana ◽  
Frandics Chan ◽  
Nicole Shiavone ◽  
Doff McElhinney ◽  
Sushma Reddy ◽  
...  

Introduction: Patients with Tetralogy of Fallot who had pulmonary valve replacement (PVR) are at risk for prosthetic valve failure that requires repeated valve replacement. Hypothesis: We hypothesize that the pre-operative geometry of the right ventricular outflow tract (RVOT) and the central pulmonary arteries is a predictor of future prosthetic valve dysfunction. Methods: In a retrospective study, using pre-operative cardiac MRI, we measured morphologic parameters including bifurcation angles, length, major and minor diameters, area, and circumference in various locations along the RVOT, pulmonary trunk (PT) and branch pulmonary arteries (BPAs) in 48 patients with Tetralogy of Fallot before they underwent PVR. Physiologic data was collected from their imaging reports (age, weight, height, body surface area (BSA), ventricular volumes and ejection fractions, valvular regurgitant fractions). All measurements were normalized by the patients’ BSA. Post-operative pulmonary valve function was assessed using Echocardiograms performed at an average of 5.5 years after the surgery. Valve dysfunction was defined as pulmonary regurgitation and/or pulmonary stenosis of at least moderate intensity. All geometric and physiologic parameters were compared between the group of patients who developed pulmonary valve dysfunction and those who did not, using a two-tailed Student t-test. Results: Patients who developed valve dysfunction had (1) greater RVOT circumference (p=0.038), (2) a more acute bifurcation angle between the PT and the Left Pulmonary Artery (p=0.016), and (3) smaller cross-sectional area at the distal BPAs (p=0.031, p=0.026). Conclusions: A dilated RVOT leading to flow vortices may increase the shear stress experienced by the valve, a sharp bifurcation angle disrupts flow patterns, adding dynamic load to the valve, and stenosis in the distal BPAs lead to increased resistance and an increased volume load to the valve - all promoting valve degeneration. Our findings are consistent with physiologic expectations and will be further explored using computational fluid dynamic simulations to elucidate how the parameters identified impact the hemodynamics around the pulmonary valve. A deeper understanding of the hemodynamic implications may ultimately reduce the incidence of valve degeneration by helping surgeons identify patients who are at high risk for valve dysfunction and guiding them to reconstruct the RVOT in specific configurations.


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