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KMID : 1011920200210010013
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International Journal of Arrhythmia
2020 Volume.21 No. 1 p.13 ~ p.13
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Clinical outcomes after pulmonary vein isolation using an automated tagging module in patients with paroxysmal atrial fibrillation
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Cho Min-Soo
Kim Jun
Do Ung-Jeong
Kim Min-Soo
Nam Gi-Byoung
Choi Kee-Joon
Kim You-Ho
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Abstract
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Background: An automated tagging module (VISITAG™; Biosense Webster, Irvine, CA) allows objective demonstration of energy delivery. However, the effect of VISITAG™ on clinical outcomes remains unclear. This study evaluated (1) clinical outcome after AF ablation using VISITAG™ 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™ 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?±?37.6 min vs. 286.9?±?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™ 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.
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KEYWORD
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Atrial fibrillation, Catheter ablation, Radiofrequency, Recurrence
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