Table 3.

Procedural details.

	RSPV			RIPV
	PNP (−) n = 486	PNP (+) n = 20	P	PNP (−) n = 486	PNP (+) n = 9	P
4th generation cryoballoon	23 (4.7%)	1 (5.0%)	0.96	23 (4.8%)	2 (25%)	0.07
No. of freezing	1.4 ± 0.6	1.1 ± 0.4	0.001	1.5 ± 0.8	1.1 ± 0.3	0.13
Time to − 30 °C	26.5 ± 5.3	26.8 ± 3.5	0.81	31.7 ± 9.8	31.1 ± 4.9	0.76
Time to − 40 °C	43.7 ± 13.0	45.0 ± 10.5	0.71	62.0 ± 35.1	52.9 ± 13.9	0.17
Time to isolation (sec)	34.0 ± 22.5	31.2 ± 18.8	0.56	45.5 ± 30.3	68.5 ± 16.3	0.29
Total freezing time (sec)	220 ± 76	151 ± 64	< 0.001	233 ± 101	144 ± 45	< 0.001
Nadir balloon temperature (°C)	− 54.4 ± 5.5	− 52.3 ± 3.8	0.12	− 49.0 ± 7.6	− 48.1 ± 6.2	0.67
Circumferential length of PV ostium (mm)	59.3 ± 12.3	63.5 ± 17.1	0.35	53.4 ± 12.0	49.9 ± 6.7	0.16
Length of PV trunk (mm)	18.9 ± 7.1	19.0 ± 6.8	0.97	13.0 ± 5.1	11.9± 3.6	0.38
The order of PVI (RIPV → RSPV)	131 (28%)	6 (30%)	0.76	133 (27%)	4 (44%)	0.27
Phrenic nerve pacing for CMAP recording
Pacing from the subclavian vein	409 (84%)	19 (95%)	0.18	411 (85%)	8 (89%)	0.72
Paced by the circular catheter	138 (28%)	8 (40%)	0.26	141 (29%)	7 (78%)	0.004
Pacing threshold (V)	2.9 ± 1.6	2.2 ± 0.9	0.09	2.9 ± 1.6	2.5 ± 0.7	0.62
Maximum CMAP reduction (%)	3.0 ± 21.1	39.1 ± 40.6	0.01	0.8 ± 22.8	36.6 ± 48.0	0.008

The data are presented as the mean ± standard deviation.

Abbreviations are the same as in the previous table.