Ablation and clinical endpoints
The primary ablation endpoint was catheter stability, defined by mean
and maximal catheter excursion. The secondary clinical endpoint was one
year freedom from AF recurrence, following a 3-month blanking period.
Recurrence was defined as an atrial arrhythmia lasting longer than 30
seconds on ambulatory monitoring, or an atrial arrhythmia documented on
a standard 12 lead electrocardiogram. Recurrences within 3 months were
included if they necessitated a repeat ablation.