Procedural results and clinical outcomes
| CPVI (n=52) | CPVI+RL (n=52) | CPVI+PostBox (n=52) | p Value | |
| Total procedure time (min) | 180.43±39.52* | 189.62±28.95 | 201.69±51.69* | 0.035 |
| Ablation time (s) | 4085.5±1384.1† ‡ | 5253.5±1010.9† | 5495.0±1316.0‡ | <0.001 |
| Complications | 2 (3.8) | 1 (1.9) | 3 (5.8) | 0.595 |
| Transient ischaemic attack | 0 (0) | 1 (1.9) | 0 (0) | 0.366 |
| Pericardial effusion | 1 (1.9) | 0 (0) | 0 (0) | 0.366 |
| Pericarditis | 1 (1.9) | 0 (0) | 3 (5.8) | 0.166 |
| Clinical outcomes | ||||
| Follow-up duration (min) | 16.17±4.34 | 15.90±4.53 | 14.69±5.90 | 0.273 |
| ER rate | 11 (21.2) | 18 (34.6) | 15 (28.8) | 0.384 |
| ER rate without AAD | 8 (15.4) | 16 (30.8) | 14 (26.9) | 0.164 |
| ER rate with AAD | 3 (5.8) | 2 (3.8) | 1 (1.9) | 0.595 |
| Patients taking AAD | 18 (34.6) | 17 (32.7) | 22 (42.3) | 0.560 |
| CR rate | 6 (11.5) | 11 (21.2) | 10 (19.2) | 0.440 |
| CR rate without AAD | 5 (9.6) | 9 (17.3) | 7 (13.5) | 0.517 |
| CR rate with AAD | 1 (1.9) | 2 (3.8) | 3 (5.8) | 0.595 |
| Patients taking AAD | 10 (19.2) | 14 (26.9) | 15 (28.8) | 0.221 |
Data are expressed as number (%) of patients or mean±SD.
↵* p=0.026, CPVI versus CPVI+PostBox.
↵† p<0.001, CPVI versus CPVI+RL.
↵‡ p<0.001, CPVI versus CPVI+PostBox.
AAD, antiarrhythmic drug; CPVI, circumferential pulmonary vein isolation; CR, clinical recurrence; ER, early recurrence; PostBox, additional RL and posterior inferior line; RL, LA roof line.