Zheng Nan, Jiang Longfu, Shen Jiabo, Zhong Jinyan
Department of Cardiovascular Medicine, Ningbo NO.2 Hospital, Ningbo, China.
Front Cardiovasc Med. 2023 Sep 29;10:1195509. doi: 10.3389/fcvm.2023.1195509. eCollection 2023.
The changes in the morphology and characteristics of the V1 leads during left bundle branch capturing still need to be fully understood.
This study aims to provide some suggestions about the LBB capture process through the morphology and characteristics of the V1 lead.
LBBP using the continuous pacing and morphology monitoring technique during screw-in using a revolving connector (John Jiang's connecting cable). The morphology and features of V1 leads are recorded by continuous monitoring technology.
The most common morphology in the LVSP stage is QR, while in the NS-LBBP (low output) stage and the NS-LBBP (lower output) stage, it is rSR. In the S-LBBP stage, it is rsR. The predominant morphology is with r/R waves in S-LBBP, which includes variations like rSR, rsR, rSr, rsr, rR, rs, rS, and R type, making up 96.7% of the total. The r waves in lead V1 are associated with agitated myocardium conducted from the left bundle branch.
The initial r-wave in lead V1 may be a marker during the follow-up of patients with selective LBB capture.
左束支夺获期间V1导联的形态和特征变化仍需深入了解。
本研究旨在通过V1导联的形态和特征对左束支夺获过程提供一些建议。
使用旋转连接器（蒋氏连接电缆）旋入时采用连续起搏和形态监测技术进行左束支起搏。通过连续监测技术记录V1导联的形态和特征。
左室间隔起搏（LVSP）阶段最常见的形态是QR，而在非选择性左束支起搏（低输出）阶段和非选择性左束支起搏（更低输出）阶段是rSR。在选择性左束支起搏（S-LBBP）阶段是rsR。S-LBBP阶段的主要形态是r/R波，包括rSR、rsR、rSr、rsr、rR、rs、rS和R型等变异，占总数的96.7%。V1导联的r波与来自左束支的激动心肌有关。
V1导联最初的r波可能是选择性左束支夺获患者随访期间的一个标志。
