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. 2019 Oct 18;6(6):293–296. doi: 10.1016/j.hrcr.2019.10.007

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© 2019 Heart Rhythm Society. Published by Elsevier Inc.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

PMC Copyright notice

Comparison of 3-dimensional echocardiogram between selective His bundle pacing (HBP) and left bundle branch pacing (LBBP). A: The pacing lead position (the site of LBBP near the sub-endocardium of the left side of the ventricular septum, the HBP site near the tricuspid valve annulus). LV = left ventricle; RV = right ventricle. B–D: Parametric imaging of LV in real-time 3-dimensional echocardiography analysis: B: intrinsic rhythm; C: HBP in DDD mode with sensed atrioventricular (SAV) delay 100 ms; D: LBBP in DDD mode with SAV 110 ms.