Table 3.
PV reconnections stratified according to ablation technique.
| Characteristic | RF 30–35 W (n = 178; 46%) |
RF 50 W (n = 96; 25%) |
RF 90 W (n = 4; 1%) |
CB 1st Gen (n = 31; 8%) |
CB 2nd Gen (n = 17; 4%) |
CB 3rd Gen (n = 37; 10%) |
Surgical (n = 26; 7%) |
p Value | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LSPV, n (%) | 72 | (40) | 36 | (38) | 1 | (25) | 20 | (65) | 9 | (53) | 20 | (54) | 10 | (39) | 0.102 |
| LIPV, n (%) | 54 | (30) | 30 | (32) | 2 | (50) | 16 | (52) | 10 | (59) | 15 | (41) | 7 | (27) | 0.065 |
| RSPV, n (%) | 110 | (62) | 51 | (54) | 4 | (100) | 21 | (68) | 12 | (71) | 24 | (65) | 7 | (27) | 0.006 |
| RIPV, n (%) | 111 | (62) | 58 | (61) | 3 | (75) | 22 | (71) | 11 | (65) | 25 | (68) | 8 | (31) | 0.051 |
| At least one PV reconnected, n (%) | 151 | (85) | 76 | (79) | 4 | (100) | 31 | (100) | 16 | (94) | 34 | (92) | 13 | (50) | 0.001 |
| Mean number of reconnected PVs, mean ± SD | 1.9 ± 1.2 | 1.8 ± 1.3 | 2.5 ± 0.6 | 2.5 ± 1.0 | 2.5 ± 1.5 | 2.3 ± 1.3 | 1.2 ± 1.6 | 0.002 | |||||||
| Mean time between first and redo, mean ± SD (months) | 42 ± 30 | 11 ± 6 | 9 ± 4 | 122 ± 40 | 62 ± 24 | 16 ± 11 | 48 ± 44 | 0.001 | |||||||
CB, cryoballoon; LSPV, left superior pulmonary vein; LIPV, left inferior pulmonary vein; PV, pulmonary vein; RF, radiofrequency; RSPV, right superior pulmonary vein; RIPV, right inferior pulmonary vein; SD, standard deviation. Bold type indicates statistical significance p < 0.05.