Table 3.
Specific procedural parameters.
| Specific procedural parameters | SBA group (n = 24) | ABA group (n = 23) | p-value |
|---|---|---|---|
| Index AFL [n (%)] | 24 (1 0 0) | 23 (1 0 0) | |
| Perimitral [n (%)] | 15 (62.5) | 17 (73.9) | 0.53 |
| Cycle length [ms] [mean ± SD] | 270 ± 46 | 264 ± 37 | 0.59 |
| Successfully ablated [n (%)] | 14 (93.3) | 15 (88.2) | 1.00 |
| Roof-dependent [n (%)] | 9 (37.5) | 6 (26.1) | 0.53 |
| Cycle length [ms] [mean ± SD] | 288 ± 83 | 279 ± 43 | 0.64 |
| Successfully ablated [n (%)] | 8 (88.9) | 6 (1 0 0) | 1.00 |
| Additional AFL | 5 (1 0 0) | 8 (1 0 0) | |
| Perimitral [n (%)] | 2 (40) | 4 (50) | 1.00 |
| Cycle length [ms] [mean ± SD] | 363 ± 11 | 270 ± 66 | 0.16 |
| Successfully ablated [n (%)] | 2 (1 0 0) | 3 (75.0) | 1.00 |
| Roof-dependent [n (%)] | 3 (60) | 4 (50) | 1.00 |
| Cycle length [ms] [mean ± SD] | 247 ± 37 | 265 ± 61 | 0.72 |
| Successfully ablated [n (%)] | 3 (1 0 0) | 3 (75.0) | 1.00 |
| Left-atrial substrate burden1 | |||
| < 25% [n (%)] | 1 (4.2) | 0 (0.0) | 0.96 |
| 25 – 50% [n (%)] | 2 (8.3) | 4 (17.4) | |
| 50 – 75% [n (%)] | 18 (75.0) | 15 (65.2) | |
| > 75% [n (%)] | 3 (12.5) | 4 (17.4) | |
| Additional non-AFL ablation | |||
| CTI ablation [n (%)] | 3 (12.5) | 3 (13.0) | 1.00 |
| PVI [n (%)] | 4 (16.7) | 4 (17.4) | 1.00 |
| RePVI [n (%)] | 9 (37.5) | 10 (43.5) | 0.77 |
| FAT ablation [n (%)] | 2 (8.3) | 5 (21.7) | 0.25 |
1
defined as area of low-voltage ≤ 0.1 mV during AFL mapping.