Skip to main content
Top
Published in: Journal of Interventional Cardiac Electrophysiology 3/2020

01-04-2020 | Atrial Fibrillation

Incidence and pattern of conduction gaps after pulmonary vein isolation with the endoscopic ablation system

Authors: Fabrizio Bologna, Stefano Bordignon, Laura Perrotta, Daniela Dugo, Takaiko Nagase, Shaojie Chen, Manuel De Lazzari, Julian KR Chun, Boris Schmidt

Published in: Journal of Interventional Cardiac Electrophysiology | Issue 3/2020

Login to get access

Abstract

Purpose

Durable pulmonary vein isolation (PVI) is the goal of atrial fibrillation (AF) ablation. The endoscopic ablation system (EAS) is associated with a high rate of persistent PVI. The aim of this study was to analyze the incidence and pattern of conduction gaps in patients with arrhythmia recurrence after an EAS-guided PVI.

Methods

Repeat ablations after an EAS-guided PVI were analyzed. After PV angiograms, PV reconnection was assessed. Radiofrequency ablation was delivered at the earliest pulmonary vein (PV) activation site (gap) with the goal of PV re-isolation.
First, the incidence of reconnected PVs per patient was assessed. Second, the gap pattern according to the individual PV quadrant was analyzed.

Results

Fifty-nine out of 373 (16%) patients underwent a second procedure after index EAS. PV reconnection was observed in 71/230 (31%) PVs without statistically significant differences between individual PVs. A higher incidence of gaps was found for right PVs (49 vs. 27; p 0.0006). The carina between the superior and inferior PV presented a low incidence of gaps (18 vs. 56, p < 0.0001). Gaps were also predominant at the AS segment of the RSPV (11 gaps).
No predictors of reconnection were found, except the higher total amount of application in the reconnected right inferior PV (26.03 ± 1.30 vs. 32.04 ± 2.89; p 0.0396).

Conclusion

EAS-guided PVI results in a 72% durable PVI rate in patients with AF recurrences without difference between individual PVs. More of the gap was found in the right PVs especially in the anterosuperior segment of the RSPV.
Literature
4.
go back to reference Metzner A, Wissner E, Lin T, Ouyang F, Kuck KH. Balloon devices for atrial fibrillation therapy. Arrhythmia Electrophysiol Rev. 2015;4(1):58–61.CrossRef Metzner A, Wissner E, Lin T, Ouyang F, Kuck KH. Balloon devices for atrial fibrillation therapy. Arrhythmia Electrophysiol Rev. 2015;4(1):58–61.CrossRef
11.
13.
go back to reference Ücer E, Janeczko Y, Seegers J, Fredersdorf S, Friemel S, Poschenrieder F, et al. A randomized trial to compare the acute reconnection after pulmonary vein isolation with laser-balloon versus radiofrequency ablation: RATISBONA trial. J Cardiovasc Electrophysiol. n.d.;29(5):733–9. https://doi.org/10.1111/jce.13465. Ücer E, Janeczko Y, Seegers J, Fredersdorf S, Friemel S, Poschenrieder F, et al. A randomized trial to compare the acute reconnection after pulmonary vein isolation with laser-balloon versus radiofrequency ablation: RATISBONA trial. J Cardiovasc Electrophysiol. n.d.;29(5):733–9. https://​doi.​org/​10.​1111/​jce.​13465.
16.
go back to reference Schmidt B, Neuzil P, Luik A, Osca Asensi J, Schrickel JW, Deneke T, et al. Laser balloon or wide-area circumferential irrigated radiofrequency ablation for persistent atrial fibrillation: a multicenter prospective randomized study. Circ Arrhythm Electrophysiol. 2017;10(12):1–11. https://doi.org/10.1161/CIRCEP.117.005767.CrossRef Schmidt B, Neuzil P, Luik A, Osca Asensi J, Schrickel JW, Deneke T, et al. Laser balloon or wide-area circumferential irrigated radiofrequency ablation for persistent atrial fibrillation: a multicenter prospective randomized study. Circ Arrhythm Electrophysiol. 2017;10(12):1–11. https://​doi.​org/​10.​1161/​CIRCEP.​117.​005767.CrossRef
18.
19.
go back to reference Figueras i, Ventura RM, Mǎrgulescu AD, Benito EM, Alarcón F, Enomoto N, et al. Postprocedural LGE-CMR comparison of laser and radiofrequency ablation lesions after pulmonary vein isolation. J Cardiovasc Electrophysiol. 2018;29(8):1065–72. https://doi.org/10.1111/jce.13616.CrossRef Figueras i, Ventura RM, Mǎrgulescu AD, Benito EM, Alarcón F, Enomoto N, et al. Postprocedural LGE-CMR comparison of laser and radiofrequency ablation lesions after pulmonary vein isolation. J Cardiovasc Electrophysiol. 2018;29(8):1065–72. https://​doi.​org/​10.​1111/​jce.​13616.CrossRef
22.
go back to reference Reddy VY, Houghtaling C, Fallon J, Fischer G, Farr N, Clarke J, et al. Use of a diode laser balloon ablation catheter to generate circumferential pulmonary venous lesions in an open-thoracotomy caprine model. Pacing Clin Electrophysiol: PACE. 2004;27(1):52–7.CrossRef Reddy VY, Houghtaling C, Fallon J, Fischer G, Farr N, Clarke J, et al. Use of a diode laser balloon ablation catheter to generate circumferential pulmonary venous lesions in an open-thoracotomy caprine model. Pacing Clin Electrophysiol: PACE. 2004;27(1):52–7.CrossRef
Metadata
Title
Incidence and pattern of conduction gaps after pulmonary vein isolation with the endoscopic ablation system
Authors
Fabrizio Bologna
Stefano Bordignon
Laura Perrotta
Daniela Dugo
Takaiko Nagase
Shaojie Chen
Manuel De Lazzari
Julian KR Chun
Boris Schmidt
Publication date
01-04-2020
Publisher
Springer US
Published in
Journal of Interventional Cardiac Electrophysiology / Issue 3/2020
Print ISSN: 1383-875X
Electronic ISSN: 1572-8595
DOI
https://doi.org/10.1007/s10840-019-00556-5

Other articles of this Issue 3/2020

Journal of Interventional Cardiac Electrophysiology 3/2020 Go to the issue