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. 2023 Mar 16;16(4):e011408. doi: 10.1161/CIRCEP.122.011408

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© 2023 The Authors.

Circulation: Arrhythmia and Electrophysiology is published on behalf of the American Heart Association, Inc., by Wolters Kluwer Health, Inc. This is an open access article under the terms of the Creative Commons Attribution Non-Commercial-NoDerivs License, which permits use, distribution, and reproduction in any medium, provided that the original work is properly cited, the use is noncommercial, and no modifications or adaptations are made.

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Figure 2. — Work-flow of the intracardiac echocardiography (ICE)–guided left bundle branch pacing (LBBP) procedure. The home view (A) clockwise rotation of ≈180° shows the crista terminalis (B); rotate the P-bend to make the ICE enter the right ventricle (C); rotate the ICE catheter counterclockwise to bring it close to the free wall of the right ventricle; adjust the R and L bends to display the interventricular septum (IVS), TV, and left ventricular (LV) anterior papillary muscle (APM) at the same sector (D). The upper part is the intracardiac structure shown using ICE, and the lower part is the schematic diagram of the ultrasound sector. AO indicates aorta; PA, pulmonary artery; RA, right atrium; RAA, right atrial appendage; RV, right ventricule; RVOT, right ventricular outflow tract; and TV, tricuspid valve.