Unipolar Electrogram-Guided versus Lesion Size Index-Guided Catheter Ablation in Patients with Paroxysmal Atrial Fibrillation

Background: This research explores the relationship between the unipolar electrogram (UP-EGM) and lesion size index (LSI) in different regions of continuous circular lesions (CCLs) and to assess the safety and efficacy of UP-EGM-guided versus LSI-guided radiofrequency catheter ablation (RFCA) in pat...

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Main Authors: Guohua Fu, Bin He, Binhao Wang, Mingjun Feng, Xianfeng Du, Jing Liu, Yibo Yu, Fang Gao, Weidong Zhuo, Yi Xu, Yingbo Qi, Huimin Chu
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Journal of Cardiovascular Development and Disease
Subjects:
Online Access:https://www.mdpi.com/2308-3425/9/7/229
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author Guohua Fu
Bin He
Binhao Wang
Mingjun Feng
Xianfeng Du
Jing Liu
Yibo Yu
Fang Gao
Weidong Zhuo
Yi Xu
Yingbo Qi
Huimin Chu
author_facet Guohua Fu
Bin He
Binhao Wang
Mingjun Feng
Xianfeng Du
Jing Liu
Yibo Yu
Fang Gao
Weidong Zhuo
Yi Xu
Yingbo Qi
Huimin Chu
author_sort Guohua Fu
collection DOAJ
description Background: This research explores the relationship between the unipolar electrogram (UP-EGM) and lesion size index (LSI) in different regions of continuous circular lesions (CCLs) and to assess the safety and efficacy of UP-EGM-guided versus LSI-guided radiofrequency catheter ablation (RFCA) in patients with paroxysmal atrial fibrillation (PAF). Methods: A total of 120 patients with drug-refractory PAF who underwent index RFCA were scheduled to be consecutively included from March 2020 to April 2021. All the patients were randomly divided 1:1 into two groups: the UP-EGM group and the LSI group. The first-pass PVI rate, acute PVI rate, and the sinus rhythm maintenance rate were compared. Results: A total of 120 patients with PAF were included in the study: the UP-EGM group (<i>n</i> = 60) and the LSI group (<i>n</i> = 60). All the LSI values in the UP-EGM group were less than those in the corresponding regions in the LSI group (all <i>p</i> < 0.001). There were no significant differences in the first-pass PVI rate and acute PVI rate between the two groups. After a mean follow-up period of 11.31 ± 1.70 months, the sinus rhythm maintenance rate in the UP-EGM group was comparable to that in the LSI group (90% vs. 91.7%, <i>p</i> = 0.752). Conclusion: UP-EGM-guided and LSI-guided RFCA are both effective and safe in patients with PAF. However, UP-EGM may be more suitable than LSI for guiding individual RFCA.
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spelling doaj.art-de7dd208e8924858ad4b0da8a185fd202023-11-30T21:09:24ZengMDPI AGJournal of Cardiovascular Development and Disease2308-34252022-07-019722910.3390/jcdd9070229Unipolar Electrogram-Guided versus Lesion Size Index-Guided Catheter Ablation in Patients with Paroxysmal Atrial FibrillationGuohua Fu0Bin He1Binhao Wang2Mingjun Feng3Xianfeng Du4Jing Liu5Yibo Yu6Fang Gao7Weidong Zhuo8Yi Xu9Yingbo Qi10Huimin Chu11Arrhythmia Center, Ningbo First Hospital, Ningbo 315000, ChinaArrhythmia Center, Ningbo First Hospital, Ningbo 315000, ChinaArrhythmia Center, Ningbo First Hospital, Ningbo 315000, ChinaArrhythmia Center, Ningbo First Hospital, Ningbo 315000, ChinaArrhythmia Center, Ningbo First Hospital, Ningbo 315000, ChinaArrhythmia Center, Ningbo First Hospital, Ningbo 315000, ChinaArrhythmia Center, Ningbo First Hospital, Ningbo 315000, ChinaArrhythmia Center, Ningbo First Hospital, Ningbo 315000, ChinaArrhythmia Center, Ningbo First Hospital, Ningbo 315000, ChinaArrhythmia Center, Ningbo First Hospital, Ningbo 315000, ChinaArrhythmia Center, Ningbo First Hospital, Ningbo 315000, ChinaArrhythmia Center, Ningbo First Hospital, Ningbo 315000, ChinaBackground: This research explores the relationship between the unipolar electrogram (UP-EGM) and lesion size index (LSI) in different regions of continuous circular lesions (CCLs) and to assess the safety and efficacy of UP-EGM-guided versus LSI-guided radiofrequency catheter ablation (RFCA) in patients with paroxysmal atrial fibrillation (PAF). Methods: A total of 120 patients with drug-refractory PAF who underwent index RFCA were scheduled to be consecutively included from March 2020 to April 2021. All the patients were randomly divided 1:1 into two groups: the UP-EGM group and the LSI group. The first-pass PVI rate, acute PVI rate, and the sinus rhythm maintenance rate were compared. Results: A total of 120 patients with PAF were included in the study: the UP-EGM group (<i>n</i> = 60) and the LSI group (<i>n</i> = 60). All the LSI values in the UP-EGM group were less than those in the corresponding regions in the LSI group (all <i>p</i> < 0.001). There were no significant differences in the first-pass PVI rate and acute PVI rate between the two groups. After a mean follow-up period of 11.31 ± 1.70 months, the sinus rhythm maintenance rate in the UP-EGM group was comparable to that in the LSI group (90% vs. 91.7%, <i>p</i> = 0.752). Conclusion: UP-EGM-guided and LSI-guided RFCA are both effective and safe in patients with PAF. However, UP-EGM may be more suitable than LSI for guiding individual RFCA.https://www.mdpi.com/2308-3425/9/7/229unipolar electrogramlesion indexparoxysmal atrial fibrillationpulmonary vein isolation
spellingShingle Guohua Fu
Bin He
Binhao Wang
Mingjun Feng
Xianfeng Du
Jing Liu
Yibo Yu
Fang Gao
Weidong Zhuo
Yi Xu
Yingbo Qi
Huimin Chu
Unipolar Electrogram-Guided versus Lesion Size Index-Guided Catheter Ablation in Patients with Paroxysmal Atrial Fibrillation
Journal of Cardiovascular Development and Disease
unipolar electrogram
lesion index
paroxysmal atrial fibrillation
pulmonary vein isolation
title Unipolar Electrogram-Guided versus Lesion Size Index-Guided Catheter Ablation in Patients with Paroxysmal Atrial Fibrillation
title_full Unipolar Electrogram-Guided versus Lesion Size Index-Guided Catheter Ablation in Patients with Paroxysmal Atrial Fibrillation
title_fullStr Unipolar Electrogram-Guided versus Lesion Size Index-Guided Catheter Ablation in Patients with Paroxysmal Atrial Fibrillation
title_full_unstemmed Unipolar Electrogram-Guided versus Lesion Size Index-Guided Catheter Ablation in Patients with Paroxysmal Atrial Fibrillation
title_short Unipolar Electrogram-Guided versus Lesion Size Index-Guided Catheter Ablation in Patients with Paroxysmal Atrial Fibrillation
title_sort unipolar electrogram guided versus lesion size index guided catheter ablation in patients with paroxysmal atrial fibrillation
topic unipolar electrogram
lesion index
paroxysmal atrial fibrillation
pulmonary vein isolation
url https://www.mdpi.com/2308-3425/9/7/229
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