Safety and efficacy of lesion size index guided 50 W radiofrequency ablation in patients with paroxysmal atrial fibrillation.

ABSTRACT:

Background

Pulmonary vein isolation (PVI) using conventional power (30-35 W) radiofrequency ablation (RFA) has been an effective treatment strategy for paroxysmal atrial fibrillation (PAF), but its longer duration may cause collateral damage to peripheral tissue including esophageal and phrenic nerve. High-power (HP) RFA, due to better transmural performance and shorter duration, may reduce the damage to adjacent tissue and is expected to be a safe and efficient ablation strategy.

Methods

In this retrospective cohort study, we included 259 patients with PAF who underwent lesion size index (LSI)-guided radiofrequency ablation. All patients underwent PVI-based ablation, and some underwent additional ablation, including superior vena cava isolation, tricuspid isthmus block, or

SUBMITTER: Li X 

PROVIDER: S-EPMC11887063 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature