Characteristics of Very High-Power, Short-Duration Radiofrequency Applications.

ABSTRACT:

Introduction

Pulmonary vein isolation is the cornerstone of rhythm-control therapy for atrial fibrillation (AF). The very high-power, short-duration (vHPSD) radiofrequency (RF) ablation is a novel technology that favors resistive heating while decreasing the role of conductive heating. Our study aimed to evaluate the correlations between contact force (CF), power, impedance drop (ID), and temperature; and to assess their role in lesion formation with the vHPSD technique.

Methods

Consecutive patients who underwent initial point-by-point RF catheter ablation for AF were enrolled in the study. The vHPSD ablation was performed applying 90 W for 4 s with an 8 ml/min irrigation rate.

Results

Data from 85 patients [median age 65 (59-71) years, 34% female] were collected. The

SUBMITTER: Orban G 

PROVIDER: S-EPMC9326019 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature