Comparison between First- and Second-Generation Cryoballoon for Paroxysmal Atrial Fibrillation Ablation

Table 3

Acute success and procedure-related complications.

	CB, 1st; ()	CB, 2nd; ()
PVI achieved, (%)	95	98	ns
Catheter failure, (%)	3 (5)	1 (1.6)	ns
Need of touch-up, (%)	3 (5)	1 (1.6)	ns
Acute PNP, (%)	2 (3.3)	1 (1.6)	ns
Chronic PNP, (%)	0	0	—
Cerebral embolization, (%)	0	0	—
Pericardial effusion, (%)	1 (1.6)	0	ns
Cardiac tamponade, (%)	0	0	—
PV stenosis, (%)	0	0	—
Atrioesophageal fistula, (%)	0	0	—
Vascular injury, (%)	3 (5)	2 (3.3)	ns

PVI: pulmonary vein isolation; PNP: phrenic nerve palsy; : FlexCath failure; : 2/3 FlexCath failure, 1/3 Cryoballoon failure.