Table 3.
Procedural Characteristics for Electrical isolation of PLSVC.
| Procedural Characteristics | Location of Arrhythmogenic Triggers (n = 14) | ||
|---|---|---|---|
| Distal-PLSVC (n = 11) | Proximal-PLSVC (n = 3) | p-Value | |
| Electrical isolation of PLSVC, n (%) | 10 (91%) | 2 (67%) | 0.89 |
| Diameter of the PLSVC (mm) | 18.9 ± 8.5 | 17.1 ± 2.6 | 0.37 |
| PLSVC ablation time (min) | 15.4 ± 6.5 | 31.1 ± 9.6 | 0.0107 |
| Ablation to LA, n (%) | 1 (9%) | 3 (100%) | 0.015 |
| Cardiac tamponade | 0 (0%) | 0 (0%) | - |
| TIA/Stroke within 30 days | 0 (0%) | 0 (0%) | - |
| Left phrenic nerve paralysis | 0 (0%) | 0 (0%) | - |
| Redo RFCA | 2 (18%) | 2 (67%) | 0.35 |
LA, left atrium; PLSVC, persistent left superior vena cava; RFCA, radiofrequency catheter ablation; TIA, transient ischemic attack.