Table 4.

Procedural details (patients with persistent PNP).

	Patient 1	Patient 2	Patient 3
Age (years)	75	68	47
Gender	Female	Female	Male
Time to isolation (sec)	–	24	26
Total freezing time (sec)	171	83	118
Nadir temperature (°C)	− 52	− 48	− 57
Maximum CMAP reduction (%)	24	42	66
Stop method	Double stop	Double stop	Double stop
Touch up ablation	None	None	None
SVC isolation	None	None	None
Circumferential length of RSPV (mm)	61	65	No CT
Length of RSPV trunk (mm)	11	11	No CT
Fluoroscopic position of cryoballoon in relation to the cardiac shadow	None	Distal 1/3	Mid 1/3
Operator’s experience (cases)	55	7	53

SVC superior vena cava.

The position of cryoballoon was evaluated under fluoroscopic guidance in AP projection during RSPV ablation. None: the lower half of the balloon is completely located inside the cardiac shadow. Distal 1/3: less than one-third of the lower portion of the balloon is located outside the cardiac shadow. Mid 1/3: one-third or more of the lower portion of the balloon is located outside the cardiac shadow.