All
n=54 GH (+)
n=10 GH (-)
n=44 P
Procedure time, min 139.9±30.0 116.5 (109.5-129.0) 138.0 (126.8-150.3) 0.41
Lowest nadir temperature, ℃
LSPV –54.0±5.2 –55.5 (–57.0 - –52.5) –53.5 (–57.0 - –51.0) 0.40
LIPV –46.9±5.2 –46.5 (–50.3 - –44.3) –47.0 (–49.3 - –44.0) 0.96
RSPV –54.6±5.7 –56.0 (–58.8 - –53.3) –54.0 (–59.0 - –50.8) 0.38
RIPV –49.7±7.0 –47.5 (–53.0 - –47.0) –49.0 (–55.0 - –45.5) 0.90
LA roof line –49.3±4.6 –49.0 (–51.0 - –47.3) –49.0 (–53.3 - –45.0) 0.98
Total freezing time, s
LSPV 203.7±65.6 180.0 (180.0-180.0) 180.0 (180.0-202.5) <0.01
LIPV 188.2±53.2 180.0 (180.0-192.8) 180.0 (180.0-180.0) 0.45
RSPV 220.3±110.0 180.0 (180.0-180.0) 180.0 (180.0-224.8) 0.25
RIPV 238.3±98.3 180.0 (180.0-229.3) 180.0 (180.0-263.0) 0.99
LA roof line 964.6±290.2 810.0 (720.0-947.0) 914.0 (821.0-1062.0) 0.16
Isolated area of the LA posterior wall, % 68.8±21.0 79.1 (72.5-89.3) 71.8 (58.7-82.2) 0.13
Touch up ablation for the PVI, n (%) 18 (33.3) 4 (40.0) 14 (31.8) 0.72
Touch up ablation for the LAPW roof line, n (%) 7 (13.0) 0 (0.0) 7 (15.9) 0.33
Esophageal temperature reached 15℃, n (%) 19 (35.2) 6 (60.0) 13 (29.5) 0.17
Esophageal temperature reached 15℃ during LA roof line ablation, n (%) 14 (25.9) 5 (50.0) 9 (20.5) 0.10
Nadir esophageal temperature,* ℃ 13.7±3.0 13.8 (12.8-14.7) 14.6 (12.0-16.1) 0.66