Table 3 Acute Results of Cryoablation Procedure
Vein | Cryo-AFDosing(n = 80) | Cryo-AFConventional(n = 84) | P |
|---|---|---|---|
Vein (LSPV) | |||
PV potentials, n (%) | 77 (96.25%) | 79 (94.05%) | 0.513 |
TT-PVI, s | 49.0 ± 20.7 | 52.9 ± 22.5 | 0.263 |
Nadir temperature,°C | -50.4 ± 3.7 | −48.4 ± 5.6 | 0.007 |
Total cryotherapy time per vein, s | 244.5 ± 41.6 | 368.0 ± 34.0 | < 0.001 |
2 lesions per vein, n (%) | 73 (91.25%) | 73 (86.90%) | 0.374 |
Late/ATP reconnection,n (%) | 1 (1.25%) | 2 (2.38%) | 0.585 |
Vein (LIPV) | |||
PV potentials,n(%) | 69 (86.25%) | 70 (82.35%) | 0.603 |
TT-PVI, s | 45.2 ± 21.7 | 44.7 ± 23.2 | 0.124 |
Nadir temperature,°C | −45.5 ± 3.8 | −44.2 ± 4.5 | 0.057 |
Total cryotherapy time per vein, s | 244.0 ± 45.5 | 375.0 ± 45.0 | < 0.001 |
2 lesions per vein, n (%) | 70 (87.50%) | 71 (84.52%) | 0.583 |
Late/ATP reconnection,n (%) | 1 (1.25%) | 3 (3.57%) | 0.648 |
Vein (RSPV) | |||
PV potentials, n (%) | 66 (82.50%) | 68 (80.95%) | 0.798 |
TT-PVI, s | 39.7 ± 18.9 | 40.2 ± 16.9 | 0.862 |
Nadir temperature,°C | −52.8 ± 4.4 | −51.6 ± 3.8 | 0.061 |
Total cryotherapy time per vein, s | 236.8 ± 41.9 | 366.7 ± 21.2 | < 0.001 |
2 lesions per vein, n (%) | 70 (87.50%) | 75 (89.29%) | 0.721 |
Late/ATP reconnection,n (%) | 0 | 2 (2.38%) | 0.497 |
Vein (RIPV) | |||
PV potentials, n (%) | 57 (71.25%) | 60 (71.43%) | 0.980 |
TT-PVI, s | 45.4 ± 23.6 | 46.8 ± 19.2 | 0.722 |
Nadir temperature,°C | −49.7 ± 4.8 | −46.8 ± 5.9 | 0.001 |
Total cryotherapy time per vein, s | 248.1 ± 40.3 | 392.0 ± 60.8 | < 0.001 |
2 lesions per vein, n (%) | 62 (77.50%) | 60 (71.43%) | 0.373 |
Late/ATP reconnection,n (%) | 1 (1.25%) | 3 (3.57%) | 0.648 |