Transcatheter aortic valve resection: new mechanical devices.

ABSTRACT:

Background

To improve periprocedural outcomes of transcatheter aortic valve implantation (TAVI), transcatheter mechanical resection devices were tested for prior ablation of the aortic cusps.

Methods

Three mechanical transcatheter resection devices were tested in a series of native porcine (n=30) and reassembled calcified human valves (n=54). The resection time, the resected valve area, the number of released cusps, and the degree of surrounding tissue damage were measured. Afterwards, postmortem transapical-transcatheter-resections of the aortic valve in two humans were performed.

Results

In the native porcine hearts, the Aesculap II device demonstrated significantly shorter resection time compared to the R&R II and the Randstad devices (6.5±2.0 vs. 28.6±24.1

SUBMITTER: Dai H 

PROVIDER: S-EPMC7711357 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature