Ablation targets of scar-related ventricular tachycardia identified by dynamic functional substrate mapping.

ABSTRACT:

Background

Dynamic functional substrate mapping of scar-related ventricular tachycardia offers better identification of ablation targets with limited ablation lesions. Several functional substrate mapping approaches have been proposed, including decrement-evoked potential (DEEP) mapping. The aim of our study was to compare the short- and long-term efficacy of a DEEP-guided versus a fixed-substrate-guided strategy for the ablation of scar-related ventricular tachycardia (VT).

Results

Forty consecutive patients presenting for ablation of scar-related VT were randomized to either DEEP-guided or substrate-guided ablation. Late potentials were tagged and ablated in the non-DEEP group, while those in the DEEP group were subjected to RV extrastimulation after a drive train. Only po

SUBMITTER: Elewa MG 

PROVIDER: S-EPMC10575820 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature