CBS 2019
CBSMD教育中心
中 文

Transcatheter Aortic Valve Replacement

Abstract

Recommended Article

Left Ventricular Rapid Pacing Via the Valve Delivery Guidewire in Transcatheter Aortic Valve Implantation Management of Asymptomatic Severe Aortic Stenosis: Evolving Concepts in Timing of Valve Replacement Cardiac surgery following transcatheter aortic valve replacement Considerations for Optimal Device Selection in Transcatheter Aortic Valve Replacement: A Review Balloon-Expandable Versus Self-Expanding Transcatheter Aortic Valve Replacement: A Propensity-Matched Comparison From the FRANCE-TAVI Registry Early Surgery or Conservative Care for Asymptomatic Aortic Stenosis 5-Year Outcomes Comparing Surgical Versus Transcatheter Aortic Valve Replacement in Patients With Chronic Kidney Disease Right ventricular function and outcome in patients undergoing transcatheter aortic valve replacement
|<<... 3 4 5 6 7 8 9 ...>>|

Original ResearchSeptember 2019

JOURNAL：JACC Cardiovasc Interv. Article Link

Long-Term Durability of Transcatheter Heart Valves: Insights From Bench Testing to 25 Years

J Sathananthan, M Hensey, U Landes et al. Keywords: durability; transcatheter aortic valve replacement; transcatheter heart valve

ABSTRACT

OBJECTIVES - This study assessed the long-term durability of nominally deployed transcatheter heart valves (THV) to 1 billion cycles (equivalent to 25 years) and non-nominal (overexpansion, underexpansion, and elliptical) THV deployments to 200 million cycles (equivalent to 5 years) with accelerated wear testing.


METHODS - SAPIEN 3 THVs, sized 20, 23, 26, and 29 mm were assessed. Nominally deployed THVs underwent hydrodynamic performance and mechanical durability as assessed with accelerated wear testing to 1 billion cycles. Magna Ease surgical valves were used as comparators. Durability of non-nominal THV deployments was tested to 200 million cycles. Valves were tested to International Standards Organization 5840:2013 standard.


RESULTS - THV durability was excellent for both the nominal and non-nominal THV deployments to 1 billion and 200 million cycles, respectively. At 1 billion cycles the regurgitant fraction for the 20-, 23-, 26-, and 29-mm SAPIEN 3 was 0.92 ± 0.47%, 1.29 ± 0.04%, 1.73 ± 0.46%, and 2.47 ± 0.15%, respectively. There was also excellent durability in the comparator Magna Ease valves. The regurgitant fraction of non-nominal overexpanded (20 mm, 4.36 ± 0.53; 23 mm, 7.68 ± 1.39; 26 mm, 6.80 ± 1.17; 29 mm, 9.00 ± 0.37), underexpanded (20 mm, 3.06 ± 0.28; 23 mm, 4.46 ± 0.45; 26 mm, 7.72 ± 0.48; 29 mm, 8.65 ± 2.01), and elliptical (20 mm, 3.30 ± 0.38; 23 mm, 6.13 ± 0.94; 26 mm, 6.77 ± 1.22; 29 mm, 8.72 ± 0.24) THVs were excellent at 200 million cycles.


CONCLUSIONS - Nominal SAPIEN 3 THVs demonstrated excellent durability, to an equivalent of 25-years wear. THV durability was similar to the comparator surgical valves tested. Non-nominal (overexpansion, underexpansion, and elliptical) THV deployments also had excellent durability to an equivalent of 5-years wear.

>CBS CBS 2019

> CBS 2019 REGISTRATION

> CBS 2019 PROGRAM

> CBS 2019 CALL FOR SCIENCE

> CBS 2019 SPOTLIGHTS

 CBSMD

> CBSMD WEBSITE REGISTRATION

> EDUCATION CENTER

> RECOMMANDED PAPER

> TOP 10 RESEARCH PAPER

> PRE-READING

CBS 2019 CBS 2019 FACULTY Education Resource CBSMD Scientific Library
Copyright ⓒ CBS MD Nanjing China. All rights reserved. 京ICP备16025898号-11
联系我们| Top