Table 3.
Pulmonary vein ablation data.
| Ablation Data | Total n = 171 |
Paroxysmal AF n = 108 |
Persistent AF n = 63 |
p Value |
|---|---|---|---|---|
| Treated PVs (overall), n | 669 | 420 | 249 | - |
| LSPV, n | 161 | 101 | 60 | |
| Single-shot isolation (n, %) | 128 (79.5) | 79 (78.2) | 49 (81.7) | 0.600 |
| TTI [s] (mean ± SD) | 15.6 ± 8.6 | 14.5 ± 7.7 | 17.3 ± 9.6 | 0.149 |
| RF applications (mean ± SD) | 1.7 ± 1.3 | 1.7 ± 1.4 | 1.6 ± 1.0 | 0.676 |
| LIPV, n | 161 | 101 | 60 | |
| Single-shot isolation (n, %) | 125 (77.6) | 76 (75.2) | 49 (81.7) | 0.345 |
| TTI [s] (mean ± SD) | 12.5 ± 6.2 | 12.4 ± 6.0 | 12.6 ± 6.6 | 0.788 |
| RF applications (mean ± SD) | 1.7 ± 1.0 | 1.7 ± 1.0 | 1.6 ± 0.9 | 0.131 |
| RSPV, n | 169 | 106 | 63 | |
| Single-shot isolation (n, %) | 114 (67.5) | 72 (67.9) | 42 (66.7) | 0.866 |
| TTI [s] (mean ± SD) | 10.8 ± 5.4 | 10.4 ± 5.5 | 11.4 ± 5.4 | 0.088 |
| RF applications (mean ± SD) | 1.4 ± 1.1 | 1.4 ± 0.9 | 1.5 ± 1.4 | 0.846 |
| RIPV, n | 169 | 106 | 63 | |
| Single-shot isolation (n, %) | 99 (58.6) | 64 (60.4) | 35 (55.6) | 0.538 |
| TTI [s] (mean ± SD) | 11.0 ± 5.0 | 10.6 ± 4.0 | 11.7 ± 6.2 | 0.880 |
| RF applications (mean ± SD) | 1.3 ± 0.6 | 1.3 ± 0.5 | 1.4 ± 0.7 | 0.213 |
| RMPV, n | 1 | 1 | 0 | |
| Single-shot isolation (n, %) | 1 (100) | 1 (100) | - | - |
| TTI [s] | 35 a | 35 a | - | - |
| RF applications (mean ± SD) | 1 | 1 | - | - |
| LPV, n | 8 | 5 | 3 | |
| Single-shot isolation (n, %) | 5 (62.5) | 4 (80.0) | 1 (33.3) | 0.187 |
| TTI [s] (mean ± SD) | 11.7 ± 7.2 | 7.5 ± 0.7 | 20 a | 0.223 |
| RF applications (mean ± SD) | 3.0 ± 2.1 | 2.4 ± 2.2 | 4.0 ± 2.0 | 0.209 |
PV, pulmonary vein; LSPV, left superior pulmonary vein; LIPV, left inferior pulmonary vein; RF, radiofrequency; RSPV, right superior pulmonary vein; RIPV, right inferior pulmonary vein, LPV, left pulmonary veins with common ostium; SD, standard deviation; TTI, time to isolation a only one TTI was observed, as a consequence SD calculation is not reasonable.