Ultra-high-resolution assessment of lesion extension after cryoballoon ablation for pulmonary vein isolation.

ABSTRACT:

Introduction

Unrecognized incomplete pulmonary vein (PV) isolation during the index procedure, can be a major cause of clinical recurrences of atrial fibrillation (AF) after cryoballoon (CB) ablation. We aimed to characterize the extension of the lesions produced by CB ablation and to assess the value of using an ultra-high resolution electroanatomic mapping (UHDM) system to detect incomplete CB lesions.

Materials and methods

Twenty-nine consecutive patients from the CHARISMA registry undergoing AF ablation at four Italian centers were prospectively evaluated. The Rhythmia™ mapping system and the Orion™ (Boston Scientific) mapping catheter were used to systematically map the left atrium and PVs before and after cryoablation.

Results

A total of 116 PVs were targeted an

SUBMITTER: Spera F 

PROVIDER: S-EPMC9681817 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature