Higher premature atrial contraction burden after radiofrequency ablation vs. pulsed field or cryoballoon ablation in paroxysmal atrial fibrillation: a 3-year follow-up retrospective study
Retrospective analysis shows similar arrhythmia freedom in patients with PAF after PFA, CBA, or RFA, indicating PAC burden differs by technique.
Key Points
PAC burden was significantly lowest in patients treated with pulsed field ablation, achieving 0.04% compared to 0.05% with cryoballoon ablation and 0.11% with radiofrequency ablation.
The freedom from atrial tachyarrhythmia >30 s after 3 years was 76.9% for pulsed field ablation, 72.7% for cryoballoon ablation, and 66.9% for radiofrequency ablation.
Procedural time was shortest with pulsed field ablation at 91 minutes, while fluoroscopy time was shortest with radiofrequency ablation at 9 minutes.
The study included 280 patients with paroxysmal atrial fibrillation who underwent catheter ablation through different techniques.