Table 1.
Patient characteristics
| Patient and procedure characteristics | All Patients (N = 281) | Anteroseptal (N = 12) | Left freewall (N = 173) | Posteroseptal (N = 69) | Right freewall (N = 27) | p value |
|---|---|---|---|---|---|---|
| Female | 117 (41.6%) | 4 (33.3%) | 70 (40.5%) | 30 (43.5%) | 13 (48.1%) | ns |
| Age (years) | 38 ± 27 | 28 ± 22 | 39 ± 25 | 37 ± 30 | 32 ± 21 | ns |
| LVEF (%) | 60 ± 5 | 60 ± 5 | 60 ± 5 | 60 ± 5 | 60 ± 5 | ns |
| Manifest pathway | 116 (41.3%) | 7 (58.3%) | 55 (31.8%) | 36 (52.2%) | 15 (55.6%) | 0.004 |
| Multiple pathways | 10 (3.6%) | 0 (0%) | 4 (2.3%) | 3 (4.3%) | 3 (11.1%) | ns |
| Secondary arrhythmia | 11 (3.9%) | 1 (8.3%) | 5 (2.9%) | 4 (5.8%) | 1 (3.7%) | ns |
| Tachyarrhythmia: | ||||||
| AF | 18 (6.4%) | 0 (0%) | 9 (5.2%) | 6 (6.9%) | 3 (11.1%) | ns |
| AVRT | 227 (80.8%) | 11 (91.7%) | 149 (86.1%) | 44 (63.8%) | 23 (85.2%) | < 0.001 |
| Open Irrigated Ablation | 31 (11.0%) | 1 (8.3%) | 13 (7.5%) | 15 (21.7%) | 2 (7.4%) | 0.014 |
| 3D Mapping | 11 (3.9%) | 2 (16.7%) | 4 (2.4%) | 4 (5.8%) | 1 (3.7%) | ns |
| Fluoroscopy Time (min) | 17 ± 22 | 33 ± 30 | 15 ± 19 | 19 ± 24 | 19 ± 26 | < 0.001 |
| Ablation Application Duration (sec) | 278 ± 330 | 422 ± 318 | 278 ± 398 | 270 ± 289 | 519 ± 539 | 0.003 |
| Total Case Time (min) | 155 ± 74 | 203 ± 77 | 144 ± 68 | 160 ± 75 | 155 ± 96 | < 0.001 |
| Acute Procedure Success | 266 (94.7%) | 9 (75.0%) | 168 (97.1%) | 66 (95.7%) | 23 (85.2%) | 0.001 |
| Long term Success After Initial Acute Success | 248 (93.2%) | 7 (77.8%) | 165 (98.2%) | 60 (91.0%) | 21 (91.3%) | < 0.001 |