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Left bundle branch pacing (LBBP) has become a hot topic in the field of physiological pacing. However, only a few studies have described the characteristics of the intrinsic intracardiac electrogram (EGM) while placing the left bundle branch (LBB) lead. Herein, we reported a case with atrial premature contractions to the ventricle during the LBBP procedure. Paced and intrinsic (supraventricular) EGMs were recorded and analyzed. The myocardium of the interventricular septum could be divided into four regions based on electrophysiology: the right septal area, the left septal area, the endocardium of the left ventricular septum, and the LBB area. This might guide the electrophysiological localization of the LBB lead in the septum. © 2022. The Author(s).

Citation

Xiaojie Cai, Longfu Jiang, Shanshan Zhuo, Hao Wu. Characteristics of intracardiac electrogram of the interventricular septum in the left bundle branch pacing. BMC cardiovascular disorders. 2022 Jun 17;22(1):274

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PMID: 35715722

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