Table 1.

Patient characteristics.

	All patients (n=67)
Age (years)	62±10
Male (n – %)	48 (72)
AF history (months)	42 (12; 60)
Persistent AF (n – %)	21 (31)
Antiarrhythmic drugs (n)	1.2±1.0
Arterial hypertension (n – %)	35 (52)
Coronary artery disease (n – %)	1 (1)
Diabetes mellitus (n – %)	8 (12)
Lone AF (n – %)	25 (37)
Left atrial diameter (mm)	41±7
LV ejection fraction (%)	61±10
Prior CTI ablation (n – %)	2 (3)
Left common pulmonary vein (n – %)	3 (4)
Right middle pulmonary vein (n – %)	9 (13)

AF=atrial fibrillation, LV=left ventricle, CTI=cavotricuspid isthmus.