Discussion
One hundred and thirty patients who underwent VGLA using the first generation LB were analyzed in the present retrospective single center study. The main findings of our study were as follows: (1) we could successfully isolate the LCPVs at the ostium with only the VGLA in 9/11 patients (81.8%), (2) the total procedure time was significantly shorter in the patients with an LCPV than in those without (174.9 ± 31.6 min vs. 148.2 ± 19.9 min, P < 0.01), and (3) the presence and configuration of the LCPV was not a significant predictor of any atrial tachyarrhythmia recurrence after the ablation procedure.