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  • Title: Comparative Matched Outcome of Evolut-R vs CoreValve Transcatheter Aortic Valve Implantation.
    Author: Landes U, Bental T, Barsheshet A, Assali A, Vaknin Assa H, Levi A, Orvin K, Kornowski R.
    Journal: J Invasive Cardiol; 2017 Feb; 29(2):69-74. PubMed ID: 28145874.
    Abstract:
    OBJECTIVES: The Evolut-R (Medtronic, Inc) is a transcatheter aortic valve implantation (TAVI) system that was built on the well-established foundation of Medtronic's CoreValve device platform. Although already in extensive clinical utilization, it is unknown if the Evolut-R improves TAVI outcomes. Herein, we compared TAVI outcomes of the Evolut-R and CoreValve devices. METHODS: A propensity score 1:1 matching was conducted on 358 Evolut-R patients (n = 75) and CoreValve patients (n = 283). Thirty-day outcomes were compared using Valve Academic Research Consortium (VARC)-2 criteria. A combined 30-day endpoint including all-cause death, stroke, major vascular complication, major bleeding, implantation failure, paravalvular leak (PVL) ≥ moderate, and new pacemaker implantation was also tested. RESULTS: The final study group included 146 patients (73 Evolut-R; 73 CoreValve). Post matching, baseline characteristics were similar between the two groups. Mean patient age was 82 ± 6 years, mean STS score was 5.2 ± 3.8, 72% were female, and 17% were deemed frail. Implantation success reached 99% with Evolut-R and 94% with CoreValve (P=.10). Both groups had low periprocedural stroke/myocardial infarction/mortality rates and there was also no difference in 30-day vascular complications (P=.18), bleeding (P=.37), PVL (P=.24), and new pacemaker (P=.14). The combined outcome rate was 24% with Evolut-R and 37% with CoreValve (P=.10). CONCLUSION: This study indicates that the efficacy and safety of the self-expandable second-generation Evolut-R transcatheter valve is at least comparable with the first-generation CoreValve. The observed improved performance in correct positioning of a single valve and the numerically lower chance to suffer a combined TAVI endpoint needs further investigation.
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