Table 2 Procedural characteristics
From: Minimising radiation exposure in catheter ablation of ventricular arrhythmias
Group 1 (n = 31) | Group 2 (n = 29) | |
|---|---|---|
Septal substrate related VT [number (%)] | 8 (25.8) | – |
Epicardial substrate related VT [number (%)] | 6 (19.4) | – |
Outflow tract ectopy/VT [number (%)] | – | 18 (62.1) |
Fascicular VT [number (%)] | – | 2 (6.9) |
Moderator band ectopy/VT [number (%)] | – | 2 (6.9) |
Postero-septal process ectopy/VT [number (%)] | – | 4 (13.8) |
Papillary muscle ectopy/VT [number (%)] | – | 1 (3.4) |
Other substrate/origin locations [number (%)] | 28 (90.3) | 4 (13.8) |
Total procedural time (min) | 256.9 ± 71.7 | 123.6 ± 42.2* |
Number of ablations (number) | 80.9 ± 40.5 | 15.4 ± 8.6* |
Total ablation time (seconds) | 3240 ± 1690 | 537 ± 357 * |
Trans-septal punctures [number (%)] | 28 (90.3) | 8 (27.6) * |
Epicardial mapping and ablation [number (%)] | 3 (9.7) | 4 (13.8) |
Procedures with high density mapping [number (%)] | 25 (80.6) | 4 (13.8) * |
Procedures with general anaesthesia [number (%)] | 6 (19.4) | 4 (13.8) |
Overall Procedural Success Rate [number (%)] | 24 (77.4) | 26 (89.7) |
Repeat procedures [number (%)] | 6 (19.4) | 2 (6.9) |
Procedures with fluoroscopy [number (%)] | 3 (9.7) | 4 (13.8) |
Fluoroscopy time (min) | 21.2 ± 5 | 8.3 ± 4 |
DAP per procedure [Gycm2 (SD)], if fluoroscopy used | 48.6 ± 23 (3 procedures) | 25.4 ± 14 (4 procedures) |