Table 3 Procedural data
Characteristic | Study population (n = 209) | AF recurrence – (n = 156) | AF recurrence + (n = 53) | P value |
|---|---|---|---|---|
Procedural time, min | 66.9 ± 20.2 | 67 ± 20.3 | 66.5 ± 19.9 | 0.918 |
Fluoroscopy time, min | 13.8 ± 7.5 | 13.4 ± 7.2 | 14.7 ± 8.3 | 0.452 |
Freezes in LSPVa | 1.2 ± 0.4 | 1.2 ± 0.4 | 1.2 ± 0.4 | 0.656 |
Freezes in LIPVb | 1.1 ± 0.3 | 1.1 ± 0.4 | 1.1 ± 0.3 | 0.215 |
Freezes in RSPVc | 1.1 ± 0.4 | 1.1 ± 0.4 | 1.2 ± 0.4 | 0.086 |
Freezes in RIPVd | 1.2 ± 0.5 | 1.2 ± 0.4 | 1.2 ± 0.5 | 0.366 |
LSPV freeze duration, s | 223.6 ± 78.9 | 224.8 ± 80.5 | 220 ± 74.6 | 0.782 |
LIPV freeze duration, s | 208.2 ± 65.5 | 211.1 ± 69 | 199.7 ± 53. 7 | 0.412 |
RSPV freeze duration, s | 208.5 ± 79 | 206 ± 75 | 215.9 ± 89.8 | 0.647 |
RIPV freeze duration, s | 225.4 ± 89.1 | 223 ± 89.4 | 232.5 ± 88.8 | 0.147 |
Min tempe in LSPV, °C | −48.7 ± 8.6 | −48.7 ± 9.5 | −48.6 ± 5 | 0.325 |
Min temp in LIPV, °C | −45.4 ± 8.6 | - 45.5 ± 9.5 | − 44.9 ± 5.4 | 0.192 |
Min temp in RSPV, °C | −49.2 ± 10.8 | −49.3 ± 11.9 | −47 ± 14.6 | 0.246 |
Min temp in RIPV, °C | −46 ± 14.6 | − 45.4 ± 16.3 | −47.9 ± 6.5 | 0.698 |
Pulmonary veins variants | 102 (48.8) | 79 (50.6) | 23 (43.3) | 0.347 |
- Left common ostium | 58 (27.8) | 42 (26.9) | 16 (30.2) | 0.647 |
- Right middle pulmonary vein | 29 (13.9) | 25 (16.0) | 4 (7.5) | 0.124 |
- Right common ostium | 8 (3.8) | 7 (4.5) | 1 (1.9) | 0.640 |
- Other | 7 (3.3) | 5 (3.2) | 2 (3.8) | 0.686 |