Clinical research

DOI: 10.4244/EIJ-D-22-01108

Thirty-day and one-year outcomes of the Navitor transcatheter heart valve in patients with aortic stenosis: the prospective, multicentre, global PORTICO NG Study

Lars Sondergaard1, MD; Antony S. Walton2,3, MD; Stephen G. Worthley4, MD; Dave Smith5, MD; Bassem Chehab6, MD; Ganesh Manoharan7, MD; Gerald Yong8, MD; Francesco Bedogni9, MD; Nicholas Bates10, PhD; Michael J. Reardon11, MD


Background: The Navitor transcatheter heart valve (THV) is a self-expanding valve, with an intra-annular leaflet position and an outer cuff intended to reduce paravalvular leak (PVL).

Aims: The aim of the PORTICO NG Study is to assess the safety and performance of the Navitor THV in patients with symptomatic, severe aortic stenosis who are at high or extreme surgical risk.

Methods: PORTICO NG is a prospective, multicentre, global, single-arm, investigational study with follow-up at 30 days, 1 year, and annually up to 5 years. The primary endpoints are all-cause mortality and moderate or greater PVL at 30 days. Valve Academic Research Consortium-2 events and valve performance are assessed by an independent clinical events committee and echocardiographic core laboratory.

Results: A total of 120 high- or extreme-risk subjects (age 83.5±5.4 years; 58.3% female; Society of Thoracic Surgeons score 4.0±2.0%) were enrolled in the European conformity (CE) mark cohort. Procedural success was high at 97.5%. At 30 days, the rate of all-cause mortality was 0%, and no subjects had moderate or greater PVL. The rate of disabling stroke was 0.8%,...

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Volume 19 Number 3
Jun 19, 2023
Volume 19 Number 3
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