Table 1. Characteristics which are predictive of the development of late recurrence after AF ablation among patients with early recurrence.

Clinical characteristics	Ablation procedural characteristics
Older age	Incomplete PVI
Nonparoxysmal AF type	AF inducibility
	Electrogram-based ablation
ERAA characteristics	Lack of AF termination during procedure
Late ERAA timing
Multiple ERAA episodes	Imaging characteristics
Later ERAA timing	Increased left atrial size/volume