Efficacy and safety of left bundle branch area pacing versus right ventricular apex pacing in patients with atrioventricular block: study protocol for a randomised controlled trial

Introduction Left bundle branch area pacing (LBBaP) is a relatively new approach for physiologic pacing. A limited number of retrospective clinical studies, featuring small sample sizes, have shown that compared with right ventricular apex pacing (RVAP), the QRS duration of postoperative ECG in LBBa...

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Main Authors: Junjun Chen, Liting Cheng, Junmeng Zhang, Zefeng Wang, Zhuo Liang, Jieruo Chen, Yongquan Wu, Xiao Du, Ruiqing Dong, Fei Hang, Xinlu Wang, Ziyu Wang
Format: Article
Language:English
Published: BMJ Publishing Group 2021-06-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/11/6/e043603.full
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author Junjun Chen
Liting Cheng
Junmeng Zhang
Zefeng Wang
Zhuo Liang
Jieruo Chen
Yongquan Wu
Xiao Du
Ruiqing Dong
Fei Hang
Xinlu Wang
Ziyu Wang
author_facet Junjun Chen
Liting Cheng
Junmeng Zhang
Zefeng Wang
Zhuo Liang
Jieruo Chen
Yongquan Wu
Xiao Du
Ruiqing Dong
Fei Hang
Xinlu Wang
Ziyu Wang
author_sort Junjun Chen
collection DOAJ
description Introduction Left bundle branch area pacing (LBBaP) is a relatively new approach for physiologic pacing. A limited number of retrospective clinical studies, featuring small sample sizes, have shown that compared with right ventricular apex pacing (RVAP), the QRS duration of postoperative ECG in LBBaP patients is narrower and the cardiac systolic function is improved. However, there have been no randomised controlled trials (RCTs) evaluating the efficacy and safety of LBBaP in patients with atrioventricular block (AVB). Therefore, the current study intends to address the paucity in RCT data evaluating LBBaP versus RVAP in AVB patients.Analysis and methods This study is a single-centre, randomised controlled superiority trial to be conducted at the Cardiac Centre of Beijing Anzhen Hospital. From January 2021 to December 2023, 210 consecutive AVB patients meeting the inclusion criteria and receiving pacemaker implantation will be enrolled. Participants will be randomly divided into an experimental group (LBBaP) and a control group (RVAP) at a 1:1 ratio. The primary outcome is left ventricular ejection fraction (LVEF), which will be assessed by echocardiography. The secondary outcomes in this study are synchrony of left ventricular systole, NT-proBNP, LVEDD, the 6-min walk distance, quality of life (SF-36 scale), all-cause mortality, cardiovascular death events, rehospitalisation rate and major complication rate.Ethics and dissemination This study was approved by the Medical Ethics Committee of Beijing Anzhen Hospital (No. 2020021X). The results of the trial will be presented at national and international conferences. We hypothesise that compared with RVAP, LBBaP will be superior for treating patients with AVB. This trial will provide evidence-based suggestion for the majority of electrophysiologists in pacing implantation.Trial registration ChiCTR2000034335.
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spelling doaj-art-d9a3580dc52c4152a6b442279ec620372024-11-19T11:35:13ZengBMJ Publishing GroupBMJ Open2044-60552021-06-0111610.1136/bmjopen-2020-043603Efficacy and safety of left bundle branch area pacing versus right ventricular apex pacing in patients with atrioventricular block: study protocol for a randomised controlled trialJunjun Chen0Liting Cheng1Junmeng Zhang2Zefeng Wang3Zhuo Liang4Jieruo Chen5Yongquan Wu6Xiao Du7Ruiqing Dong8Fei Hang9Xinlu Wang10Ziyu Wang11Department of Critical Care Medicine, West China Tianfu Hospital of Sichuan University, Chengdu, People`s Republic of ChinaBeijing An Zhen Hospital, Chaoyang-qu, ChinaDepartment of Cardiology, Beijing An Zhen Hospital, Chaoyang-qu, Beijing, ChinaBeijing An Zhen Hospital, Chaoyang-qu, ChinaBeijing An Zhen Hospital, Chaoyang-qu, ChinaBeijing An Zhen Hospital, Chaoyang-qu, ChinaDepartment of Cardiology, Beijing An Zhen Hospital, Chaoyang-qu, ChinaDepartment of Cardiology, Beijing An Zhen Hospital, Chaoyang-qu, Beijing, ChinaDepartment of Cardiology, Beijing An Zhen Hospital, Chaoyang-qu, Beijing, ChinaDepartment of Cardiology, Beijing An Zhen Hospital, Chaoyang-qu, Beijing, ChinaDepartment of Cardiology, Beijing An Zhen Hospital, Chaoyang-qu, Beijing, ChinaDepartment of Cardiology, Beijing An Zhen Hospital, Chaoyang-qu, Beijing, ChinaIntroduction Left bundle branch area pacing (LBBaP) is a relatively new approach for physiologic pacing. A limited number of retrospective clinical studies, featuring small sample sizes, have shown that compared with right ventricular apex pacing (RVAP), the QRS duration of postoperative ECG in LBBaP patients is narrower and the cardiac systolic function is improved. However, there have been no randomised controlled trials (RCTs) evaluating the efficacy and safety of LBBaP in patients with atrioventricular block (AVB). Therefore, the current study intends to address the paucity in RCT data evaluating LBBaP versus RVAP in AVB patients.Analysis and methods This study is a single-centre, randomised controlled superiority trial to be conducted at the Cardiac Centre of Beijing Anzhen Hospital. From January 2021 to December 2023, 210 consecutive AVB patients meeting the inclusion criteria and receiving pacemaker implantation will be enrolled. Participants will be randomly divided into an experimental group (LBBaP) and a control group (RVAP) at a 1:1 ratio. The primary outcome is left ventricular ejection fraction (LVEF), which will be assessed by echocardiography. The secondary outcomes in this study are synchrony of left ventricular systole, NT-proBNP, LVEDD, the 6-min walk distance, quality of life (SF-36 scale), all-cause mortality, cardiovascular death events, rehospitalisation rate and major complication rate.Ethics and dissemination This study was approved by the Medical Ethics Committee of Beijing Anzhen Hospital (No. 2020021X). The results of the trial will be presented at national and international conferences. We hypothesise that compared with RVAP, LBBaP will be superior for treating patients with AVB. This trial will provide evidence-based suggestion for the majority of electrophysiologists in pacing implantation.Trial registration ChiCTR2000034335.https://bmjopen.bmj.com/content/11/6/e043603.full
spellingShingle Junjun Chen
Liting Cheng
Junmeng Zhang
Zefeng Wang
Zhuo Liang
Jieruo Chen
Yongquan Wu
Xiao Du
Ruiqing Dong
Fei Hang
Xinlu Wang
Ziyu Wang
Efficacy and safety of left bundle branch area pacing versus right ventricular apex pacing in patients with atrioventricular block: study protocol for a randomised controlled trial
BMJ Open
title Efficacy and safety of left bundle branch area pacing versus right ventricular apex pacing in patients with atrioventricular block: study protocol for a randomised controlled trial
title_full Efficacy and safety of left bundle branch area pacing versus right ventricular apex pacing in patients with atrioventricular block: study protocol for a randomised controlled trial
title_fullStr Efficacy and safety of left bundle branch area pacing versus right ventricular apex pacing in patients with atrioventricular block: study protocol for a randomised controlled trial
title_full_unstemmed Efficacy and safety of left bundle branch area pacing versus right ventricular apex pacing in patients with atrioventricular block: study protocol for a randomised controlled trial
title_short Efficacy and safety of left bundle branch area pacing versus right ventricular apex pacing in patients with atrioventricular block: study protocol for a randomised controlled trial
title_sort efficacy and safety of left bundle branch area pacing versus right ventricular apex pacing in patients with atrioventricular block study protocol for a randomised controlled trial
url https://bmjopen.bmj.com/content/11/6/e043603.full
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