New Biparietal Bipolar Catheter Prototype for Hybrid Atrial Fibrillation Ablation.

ABSTRACT:

Objective

To evaluate the size and depth of linear lesions by in vitro testing with a custom-made radio frequency biparietal bipolar ablation catheter in a single-stage setting.

Methods

A custom-made catheter was created to generate linear lesions around the left atrium and pulmonary veins of an ex vivo pig. Two frames were made, 1 epicardial and 1 endocardial. A continuous copper braid electrode and an alignment system consisting of 2 parallel rows of neodymium magnets were embedded in a flexible plastic support. After 24 hours of formalin conservation, samples of the left atrium of a freshly slaughtered pig were sliced in a cryotome, thus obtaining a sequence of 100-µm thick layers extending from the endocardial to the epicardial side. After being digitized through a scann

SUBMITTER: Matteucci F 

PROVIDER: S-EPMC8108111 | biostudies-literature | 2021 Mar-Apr

REPOSITORIES: biostudies-literature