Role of catheter location on local impedance measurements and clinical outcome with the new direct sense technology in cardiac ablation procedures.

ABSTRACT:

Background

A novel catheter technology (direct sense, DS) enables periprocedural local impedance (LI) measurement for estimation of tissue contact during radiofrequency ablation (RFA) for real-time assessment of lesion generation. This measure reflects specific local myocardial conduction properties in contrast to the established global impedance (GI) using a neutral body electrode. Our study aimed to assess representative LI values for the cardiac chambers, to evaluate LI drop in response to RF delivery and to compare those values to established GI measures in patients undergoing RFA procedures.

Methods and results

Seventy-three patients undergoing RFA with the DS technology were included. Within the cardiac chambers, baseline LI was significantly different, with the highes

SUBMITTER: Pesch E 

PROVIDER: S-EPMC9468360 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature