Variable EC-negative group (n=51) EC-positive group (n=23) P value
First-pass-isolation 36 (70.6) 14 (60.9) 0.4321
First isolation time (min) 26.0 ± 14.7 20.9 ± 9.3 0.1311
Total number of energy applications 32.2 ± 9.2 33.2 ± 9.2 0.6455
Total duration of energy applications (sec) 648.2 ± 187.1 660.0 ± 191.0 0.8045
PV reconnection 9 (17.7) 6 (26.0) 0.5331
Additional carina ablation 9 (17.7) 8 (34.8) 0.1377
Posterior wall isolation 27 (52.9) 13 (56.5) 0.8062
Number of mapping points 2693 ± 782.7 2173 ± 737.7 0.0087
Pacing rate cycle length 608 ± 39.8 628 ± 61.4 0.0904
Bachman breakthrough 51 (100) 22 (95.7) 0.3108