Clinical Study
The Impact of Left Atrial Size in Catheter Ablation of Atrial Fibrillation Using Remote Magnetic Navigation
| | Group A () | Group B () | Total () | Value |
| | Procedure duration (min) | 143.9 ± 31.5 | 139.3 ± 25.1 | 141.6 ± 28.5 | 0.295 | | Duration from mapping begin to ablation finish (min) | 100.3 ± 30.1 | 95.7 ± 25.9 | 98.0 ± 28.4 | 0.289 | | Total X-ray time (sec) | 422.0 (228.0) | 468.0 (190.0) | 432.0 (193.5) | 0.399 | | Total X-ray dose (gy·cm2) | 17.1 (11.0) | 23.9 (19.4) | 20.9 (18.4) | <0.001 | | X-ray time during mapping and ablation (sec) | 37.0 (99.0) | 12.0 (30.1) | 23.0 (58.0) | <0.001 | | X-ray dose during mapping and ablation (gy·cm2) | 1.4 (2.7) | 0.7 (2.1) | 1.0 (2.2) | 0.013 | | Patients using X-ray during mapping and ablation | 80 | 68 | 148 | 0.01 | | Patients adjust sheath during mapping and ablation | 47 | 21 | 68 | <0.001 | | Patients adjust sheath for several times during mapping and ablation | 13 | 2 | 15 | 0.007 | | Times of adjust sheath during mapping and ablation | 1.0 (1.0) | 0.0 (1.0) | 0.0 (1.0) | <0.001 | | Heparin | 6500.0 ± 1095.4 | 6073.2 ± 1331.3 | 5960.6 ± 1334.3 | 0.283 | | Complications (minor) | 0 | 0 | 0 | – | | Complications (major) | 0 | 0 | 0 | – | | LA volume mapped by C3 (ml) | 91.8 ± 15.7 | 129.3 ± 35.6 | 109.9 ± 35.2 | <0.001 |
|
|
C3: Carto 3 system; LA: left atrial. values listed were calculated between Groups A and B. |
