Table 2.
Procedural characteristics and rhythm outcome.
| All (N = 30) | Ostial-PFA (N = 15) | WACA-PFA (N = 15) | p-value | |
|---|---|---|---|---|
| PFA procedure | ||||
| Procedure time (min) | 66 (60, 74) | 65 (50, 73) | 66 (60, 73) | 0.29 |
| Fluoroscopy time (min) | 11 (10, 15) | 11 (9, 13) | 13 (10, 16) | 0.26 |
| Dose area product (cGv/cm2) | 396 (304, 623) | 413 (269, 603) | 382 (339, 637) | 0.71 |
| Contrast medium (ml) | 40 (40, 50) | 40 (30, 50) | 40 (40, 50) | 0.35 |
| Heparin (IEx1000) | 17 (13, 20) | 17 (14, 20) | 15 (12, 20) | 0.35 |
| Propofol (1% mg) | 575 (500, 748) | 500 (470, 745) | 600 (500, 755) | 0.78 |
| Midazolam (mg) | 2.5 (2, 4) | 2.5 (2, 4) | 2.5 (2, 3) | 0.25 |
| Fentanyl (mg) | 50 (50, 50) | 50 (50, 63) | 50 (50, 50) | 0.71 |
| Left atrial mapping | ||||
| Catheter dwell time (min) | 19 (15, 24) | 19 (16, 26) | 18 (16, 21) | 0.47 |
| PFA catheter size 31 mm (%) | 33 | 20 | 47 | 0.09 |
| Pre-mapping point density | 2,344 ± 1,202 | 2,178 ± 1,515 | 2,498 ± 839 | 0.48 |
| Post-mapping point density | 2,819 ± 1,534 | 2,719 ± 1,521 | 2,905 ± 1,592 | 0.76 |
| PFA lesion size (cm2) | 40.4 ± 9.3 | 35.1 ± 7.2 | 45.5 ± 8.3 | 0.001a |
| LA wall isolation (n, %) | 0 (0) | 11/15 (73) | 0.001a | |
| Rhythm outcome | ||||
| Freedom from arrhythmia (%) | 90 | 87 | 94 | 0.68 |
| Re-ablation (n, %) | 2/30 (7%) | 2/15 (13%) | 0 (0%) | 0.14 |
PFA, pulsed field ablation; WACA, wide antral circumferential ablation; LA, left atrial.
Continuous data are given in median and interquartile range (Q1, Q3) and categorical data are given in percentage of N.
a
Statistically significant.