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Clinical outcomes of the ACURATE neo2 transcatheter heart valve: a prospective, multicenter, observational, post-market surveillance study

  • Won-Keun Kim
  • , Corrado Tamburino
  • , Helge Möllmann
  • , Matteo Montorfano
  • , Julia Ellert-Gregersen
  • , Tanja K Rudolph
  • , Nicolas M Van Mieghem
  • , Michael Hilker
  • , Ignacio J Amat-Santos
  • , Christian Juhl Terkelsen
  • , Anna Sonia Petronio
  • , Pieter R Stella
  • , Matthias Götberg
  • , Andreas Rück
  • , A Markus Kasel
  • , Ramiro Trillo
  • , Clare Appleby
  • , Marco Barbanti
  • , Philipp Blanke
  • , Rodrigo Modolo
  • Dominic J Allocco, Lars Sondergaard*
*Corresponding author af dette arbejde
23 Citationer (Scopus)

Abstract

BACKGROUND: The next-generation ACURATE neo2 transcatheter aortic valve was designed for simplified implantation and to mitigate the risk of paravalvular leak (PVL) compared to the earlier device.

AIMS: To collect clinical outcomes and device performance data, including echocardiography and 4-dimensional computed tomography (4D-CT) data, with the ACURATE neo2 transcatheter heart valve in patients with severe aortic stenosis (AS).

METHODS: ACURATE neo2 PMCF is a single-arm, multicentre study of patients with severe AS treated in routine clinical practice. The primary safety endpoint was all-cause mortality at 30-days. The primary imaging endpoint was hypo-attenuated leaflet thickening (HALT), measured by core laboratory-adjudicated 4D-CT at 30 days. Secondary endpoints included VARC safety endpoints, procedural success, and evaluation of valve performance via core laboratory-adjudicated echocardiography.

RESULTS: The study enrolled 250 patients at 18 European centres (mean age: 80.8 years; 63.6% female; mean STS score: 2.9±2.0%); 246 (98.4%) were successfully treated with ACURATE neo2. The 30-day rates for mortality and disabling stroke were 0.8% and 0%, respectively. The new permanent pacemaker implantation rate was 6.5%. HALT >50% was present in 9.3% of patients at 30 days. Valve haemodynamics improved from baseline to 30 days (mean aortic valve gradient: from 47.6±14.5 mmHg to 8.6±3.9 mmHg; mean aortic valve area: from 0.7±0.2 cm2 to 1.6±0.4 cm2). At 30 days, PVL was evaluated as none/trace in 79.2% of patients, mild in 18.9%, moderate in 1.9%, and severe in 0%.

CONCLUSIONS: The study results support the safety and efficacy of TAVI with ACURATE neo2 in patients in routine clinical practice.

OriginalsprogEngelsk
TidsskriftEuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology
Vol/bind19
Udgave nummer1
Sider (fra-til)83-92
Antal sider10
ISSN1774-024X
DOI
StatusUdgivet - 2023

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