Conclusions
Ablation of persistent atrial fibrillation in atrial fibrillation with
ventricular pacing, compared to sinus rhythm with atrial pacing, results
in similar catheter stability and lesion quality as assessed by
impedance decline and ablation parameters. Given the recent evidence
suggesting voltage mapping during atrial fibrillation may provide more
accurate assessment of atrial fibrosis, it may be preferable, at least
in patients presenting in AF, to ablate during atrial fibrillation with
ventricular pacing, and defer cardioversion until after procedure
completion.