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  • Title: The Impact of Aortic Angulation on Contemporary Transcatheter Aortic Valve Replacement Outcomes.
    Author: Medranda GA, Musallam A, Zhang C, Rappaport H, Gallino PE, Case BC, Satler LF, Ben-Dor I, Rogers T, Waksman R.
    Journal: JACC Cardiovasc Interv; 2021 Jun 14; 14(11):1209-1215. PubMed ID: 34112456.
    Abstract:
    OBJECTIVES: The aim of this study was to investigate whether the degree of aortic angulation (AA) affects outcomes after transcatheter aortic valve replacement (TAVR) using newer-generation transcatheter heart valves (THVs). BACKGROUND: AA ≥48° has been reported to adversely influence accurate THV deployment, procedural success, fluoroscopy time, and paravalvular leak (PVL) in patients undergoing TAVR with early generation self-expanding (SE) THVs. METHODS: A retrospective observational study was conducted among 841 patients across all risk strata who underwent transfemoral TAVR using the balloon-expandable (BE) SAPIEN 3 or the SE CoreValve Evolut PRO from 2015 to 2020. The previously published cutoff of 48° was used to analyze procedural success and in-hospital outcomes according to THV type. Receiver-operating characteristic analysis was performed to investigate the impact of AA on an in-hospital composite outcome (need for >1 THV, more than mild PVL, new permanent pacemaker implantation, stroke, and death). RESULTS: AA ≥48° did not influence outcomes in patients with BE THVs. Additionally, AA ≥48° did not influence procedural success (99.1% vs. 99.1%; p = 0.980), number of THVs used (1.02 vs. 1.04; p = 0.484), rates of more than mild PVL (0.4% vs. 0%; p = 0.486), new permanent pacemaker implantation (11.8% vs. 17.1%; p = 0.178), in-hospital stroke (3.9% vs. 1.8%; p = 0.298), or in-hospital death (0.4% vs. 0.9%; p = 0.980) in patients with SE THVs. Receiver-operating characteristic analysis demonstrated similar outcomes irrespective of AA, with areas under the curve of 0.5525 for SE THVs and 0.5115 for BE THVs. CONCLUSIONS: AA no longer plays a role with new-generation BE or SE THVs in contemporary TAVR practice. AA ≥48° did not affect procedural success or in-hospital outcomes and should no longer be a consideration when determining THV selection.
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