Table 2.
Cryoablation parameters in patients with and without recurrence (N = 120).
| Total | Non-Recurrence (N = 89) |
Recurrence (N = 31) |
p * | |
|---|---|---|---|---|
| Duration of each cryoapplication (s) | 143.9 ± 10.7 | 144.0 ± 11.4 | 143.8 ± 8.3 | 0.95 |
| Cavo-tricuspid linear ablation | 116 (96.7%) | 87 | 29 | 0.27 |
| Time-to-isolation (s) | ||||
| LSPV (n = 92) | 52.9 ± 28.5 | 53.7 ± 25.9 | 50.7 ± 35.9 | 0.67 |
| LIPV (n = 76) | 36.5 ± 20.9 | 36.0 ± 21.6 | 37.8 ± 19.0 | 0.74 |
| RSPV (n = 76) | 32.6 ± 24.1 | 33.0 ± 24.8 | 30.9 ± 22.1 | 0.75 |
| RIPV (n = 38) | 36.9 ± 24.9 | 37.3 ± 26.4 | 35.9 ± 22.6 | 0.88 |
| Number of cryoapplications per vein | 2.1 ± 0.3 | 2.1 ± 0.4 | 2.1 ± 0.2 | 0.98 |
| Electrical cardioversion during the cryoablation procedure | 36 (30%) | 21 (23.6%) | 15 (48.4%) | 0.013 |
| Safety endpoints | ||||
| Death | 0 (0%) | 0 | 0 | – |
| Stroke or TIA | 0 (0%) | 0 | 0 | – |
| Phrenic nerve injury | 2 (1.7%) | 1 | 1 | – |
| Cardiac tamponade requiring pericardiocentesis | 2 (1.7%) | 1 | 1 | – |
* Non-recurrence group versus recurrence group; abbreviations: LSPV, left superior pulmonary vein; LIPV, left inferior pulmonary vein; RSPV, right superior pulmonary vein; RIPV, right inferior pulmonary vein; TIA, transient ischemic attack.