Early rapid local impedance drop is associated with acute lesion efficacy during pulmonary vein isolation.

ABSTRACT:

Aims

The predictive role of local impedance (LI) drop in lesion formation using a novel contact force sensing ablation catheter was recently described. The purpose of our current study was to assess the temporal characteristics of LI drop during ablation and its correlation with acute lesion efficacy.

Methods and results

Point-by-point pulmonary vein isolation was performed. The efficacy of applications was determined by pacing along the circular ablation line and assessing loss of capture. Local impedance, contact force, and catheter position data with high resolution were analysed and compared in successful and unsuccessful applications. Five hundred and fifty-nine successful and 84 unsuccessful applications were analysed. The successful applications showed higher baseline

SUBMITTER: Perge P 

PROVIDER: S-EPMC11493088 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature