Predictors of Lesions Contiguity and Transmurality in Canine Ventricular Models After Catheter Ablation.

ABSTRACT:

Background

Interlesion gaps and transmurality of lesions after catheter ablation can precipitate suboptimal efficacy in preventing arrhythmias.

Aims

We aim to assess predictors of acute transmural lesion formation and the interlesion distance threshold for creating a continuous, chronic scar after ventricular ablation.

Materials and methods

Ablation procedures were performed on 7 canines followed by late gadolinium enhancement MRI (LGE-MRI). Transmurality of lesions was assessed by 2 independent operators. Ablation parameters such as duration (s), power (W), temperature (C), contact force (CF) (g), were collected for each ablation point. After 7-12 weeks, LGE-MRI was performed, followed by euthanasia, and heart excision. Some lesions were created in pair. Lesion pairs

SUBMITTER: El Hajjar AH 

PROVIDER: S-EPMC9260253 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature