Computed Tomography-Based Evaluation of Redo-Transcatheter Aortic Valve Replacement Feasibility for Self-Expanding Valves.

ABSTRACT:

Background

Redo-transcatheter aortic valve replacement (TAVR) may be unfeasible due to the risk of coronary flow compromise by the pinned-back leaflets of the index transcatheter aortic valve (TAV). This study aimed to evaluate the feasibility of redo-TAVR using a balloon-expandable SAPIEN 3 (S3, Edwards Lifesciences, USA) implanted within the intra-annular self-expanding Navitor TAV (Abbott, USA).

Methods

A total of 106 post-TAVR computed tomography scans of patients who underwent Navitor implantation were analyzed. Redo-TAVR using an S3 was simulated in 2 positions: S3 outflow to node 2 of the Navitor (low implant) and S3 outflow to the base of the Navitor commissural posts (high implant). The overall coronary risk, determined by the risk of coronary flow compromise and co

SUBMITTER: Kobari Y 

PROVIDER: S-EPMC12455090 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature