Early and Mid-Term Outcomes of Transcatheter Aortic Valve Replacement Using the New Generation Self-Expanding Corevalve Evolut R Device

ABSTRACTBackground: To assess early and mid-term efficacy of transcatheter aortic valve replacement (TAVR) using the new-generation CoreValve Evolut R (Medtronic Inc., Galway, Ireland).Methods: This is a prospective, single-center study. All consecutive patients undergoing TAVR with 23-, 26-, 29-, 34-mm Evolut R valve were included. In a secondary analysis, patients undergoing Evolut R implantation were compared using the propensity score method with a historical cohort of patients who underwent CoreValve implantation in our institution.Results: From March 2015 to September 2017, a total of 320 patients with a median age of 81.1 years (IQR 77–84) and mean STS score of 4.9 ± 3.1% were treated. Device success was obtained in 300 patients (93.8%). Effective recapture and repositioning of the valve due to initial suboptimal deployment was accomplished in 40 patients (12.5%). Post-TAVR transthoracic echocardiogram showed a reduction in mean gradient from 49.1 ± 18.2 mmHg to 7.6 ± 0.4 mmHg (p < 0.001). Moderate ...