Termination of atrial fibrillation by ablation of high-dominant frequency sites adjacent to epicardial adipose tissue

Abstract

We report an interesting case in which atrial fibrillation (AF) was terminated during ablation of high-dominant frequency (DF) sites covered with epicardial adipose tissue (EAT). High-DF sites are known to be related to the center of focal-firing rotors or local reentry circuits. Therefore, this phenomenon suggests that EAT may be related to the development of dominant rotors maintaining AF.

Keywords

• Atrial fibrillation
• Epicardial adipose tissue
• Dominant frequency
• Pulmonary vein isolation