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Published in: Journal of Interventional Cardiac Electrophysiology 3/2017

01-12-2017

Clinical outcomes of AF patients treated with the first and second-generation of circular mapping and ablation catheter: insights from a real world multicenter experience

Authors: Giovanni Rovaris, Paolo De Filippo, Francesco Laurenzi, Gabriele Zanotto, Nicola Bottoni, Mattia Pozzi, Fabrizio Giofrè, Piergiuseppe De Girolamo, Emanuela Visentin, Elena Piazzi, Paola Ferrari

Published in: Journal of Interventional Cardiac Electrophysiology | Issue 3/2017

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Abstract

Purpose

Complete pulmonary vein isolation (PVI) is the best documented target for catheter ablation, and different technologies have shown comparable outcomes. The multielectrode phased-RF/duty cycled (PhRF/DC) pulmonary vein ablation catheter (PVAC) and its second generation (PVAC-GOLD) have shown promising clinical results in single and multicenter experiences. Our aim is to assess and compare the safety and efficacy in the real clinical practice among two generations of circular PhRF/DC catheters by performing PVI in patients suffering from recurrent atrial fibrillation (AF).

Methods

Eighty-four AF patients treated with PVAC and 64 with PVAC-GOLD were prospectively followed in five Italian cardiology centers in the mainframe of the 1STOP-ClinicalService project.

Results

Fluoroscopic and total procedure time were significantly different in the two groups. In particular, in the PVAC-GOLD group, the mean fluoroscopic time was 22.8 ± 12.7 min vs 31.6 ± 18.9 in the PVAC group (p = 0.002), and the mean total procedure duration was 117.6 ± 36.0 vs 147.4 ± 40.6, in the PVAC-GOLD group and the PVAC group, respectively (p = 0.001). Only two out of 148 patients reported a peri-procedural complication. Over 20.9 ± 12.0 months of follow-up, AF recurrence occurred in 58 patients. Kaplan-Meier freedom from AF recurrence did not differ between the two groups (64.1 ± 10% in the PVAC group vs 68.2 ± 9% in the PVAC-GOLD group at 1 year, p = ns).

Conclusions

In our multicenter analysis, AF ablation using two generations of circular PhRF/DC catheters is safe and effective. No difference was observed in terms of safety and efficacy of the AF ablation between the two catheters, with the mean procedural time being shorter in the PVAC-GOLD group.
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Metadata
Title
Clinical outcomes of AF patients treated with the first and second-generation of circular mapping and ablation catheter: insights from a real world multicenter experience
Authors
Giovanni Rovaris
Paolo De Filippo
Francesco Laurenzi
Gabriele Zanotto
Nicola Bottoni
Mattia Pozzi
Fabrizio Giofrè
Piergiuseppe De Girolamo
Emanuela Visentin
Elena Piazzi
Paola Ferrari
Publication date
01-12-2017
Publisher
Springer US
Published in
Journal of Interventional Cardiac Electrophysiology / Issue 3/2017
Print ISSN: 1383-875X
Electronic ISSN: 1572-8595
DOI
https://doi.org/10.1007/s10840-017-0278-y

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