Repeat transcatheter aortic valve implantation and implications for transcatheter heart valve performance: insights from bench testing.

ABSTRACT:

Background

THV implantation within failed surgical valves is well established. However, the implications of THV implantation within failed THVs are poorly understood.

Aims

This study aimed to assess the impact of different transcatheter heart valve (THV) designs and implant positioning strategies on hydrodynamic performance after redo transcatheter aortic valve implantation (TAVI).

Methods

THVs of varying design (SAPIEN 3, Evolut PRO, ACURATE neo, ALLEGRA, and Portico) and size were implanted inside SAPIEN XT and Evolut R THVs. Hydrodynamic function as per International Organization for Standardization (ISO) specifications was evaluated using a pulse duplicator, and multi-modality imaging was performed.

Results

The majority of tested THV-in-THV combinations res

SUBMITTER: Sathananthan J 

PROVIDER: S-EPMC9724961 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature