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. 2023 Oct 23;17(3):685–694. doi: 10.1007/s12265-023-10453-y

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — Cardiac resynchronisation therapy delivery methods. Biventricular pacing (left) is delivered by pacing the RV apex and the LV epicardium from a tributary of the coronary sinus. Conduction system pacing can be delivered by implanting a lead in the His (HBP) or in the left bundle branch area (LBBAP) from the RV side. When the left bundle is directly targeted, LBBP is achieved. On the other hand, LV septal pacing (LVSP) is delivered by pacing the myocardium of the deep intraventricular septum without directly targeting the left bundle