Activation Map-Guided Ablation for Persistent Atrial Fibrillation Using Rhythmia Mapping System
Yosuke Murase1, Yasuya Inden2, Yasuhiro Ogawa1
1Department of Cardiology Komaki City Hospital Komaki Aichi Japan.
Background:
Creating activation map during atrial fibrillation (AF) has been challenging.
Methods:
Activation map-guided ablation was performed in 29 persistent AF patients using the Rhythmia mapping system.
Results:
After activation map-guided AF ablation, patients with left atrial volume (LAV) < 96.5 mL and ratio of organized atrial electrogram pattern (ROAE) ≥ 40% had significantly higher atrial arrhythmia-free rates than other patients (84% vs. 20%, log-rank test; p < 0.001).
Conclusions:
The patients with smaller LA and highly organized atrial electrogram pattern had significantly lower atrial arrhythmia recurrence rate after activation map-guided AF ablation.
