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KMID : 1011920200210010013
International Journal of Arrhythmia
2020 Volume.21 No. 1 p.13 ~ p.13
Clinical outcomes after pulmonary vein isolation using an automated tagging module in patients with paroxysmal atrial fibrillation
Cho Min-Soo

Kim Jun
Do Ung-Jeong
Kim Min-Soo
Nam Gi-Byoung
Choi Kee-Joon
Kim You-Ho
Abstract
Background: An automated tagging module (VISITAG¢â; Biosense Webster, Irvine, CA) allows objective demonstration of energy delivery. However, the effect of VISITAG¢â on clinical outcomes remains unclear. This study evaluated (1) clinical outcome after AF ablation using VISITAG¢â and (2) the prevalence of gaps in the ablation line.

Methods: This retrospective analysis included 157 consecutive patients (mean age, 56.7 years; 73.2% men) with paroxysmal atrial fibrillation who underwent successful PVI between 2013 and 2016. Outcomes after the index procedure were compared between those using the VISITAG¢â module (VISITAG group, n?=?62) and those not using it (control group, n?=?95). The primary outcome was recurrence of AF or atrial tachycardia after a blanking period of 3 months.

Results: The VISITAG group showed significantly shorter overall procedure time (172.2?¡¾?37.6 min vs. 286.9?¡¾?66.7 min, P??15 s, ?60% force over time, >?6 g contact force) showed higher recurrence-free survival rate compared with those with gaps (borderline statistical significance, 91.7% vs. 66.0%, P?=?0.094).

Conclusion: Use of the VISITAG¢â module significantly reduced procedure, ablation, and fluoroscopic times with a similar AF/AT recurrence rate compared with the conventional ablation. Clinical implications of minimizing gaps along the ablation line should be evaluated further in the future prospective studies.
KEYWORD
Atrial fibrillation, Catheter ablation, Radiofrequency, Recurrence
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