Immediate clinical outcomes of left bundle branch area pacing vs conventional right ventricular pacing

Figures

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  Figure 1. The procedure of left bundle branch (LBB) area implantation with the 3830 lead. A, The Baseline ECG of the patient with left bundle branch area pacing (LBBaP); B to E represent the process of 3830 lead implantation: With 2 V output and unipolar paced lead, the V1 QRS wave appeared W‐shaped with a mid‐notch (B); The leads were intermittently paced and the V1 QRS morphology (notch) gradually moved back until the vertical R wave appeared in the form of right bundle branch block (the red pentagram shows); F, the 3830 lead implanted in LBB area successfully and P potential (the red dot shows) can be seen in the intraluminal electrogram. G, The direction of LBBaP lead and sheath to move in fluoroscopic imaging

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  Figure 2. The basic criteria of left bundle branch area pacing (LBBaP). A, P potential can be seen in intracardiac electrogram and the duration of P‐QRS was 21 ms (P potential to the onset of QRS); B. The duration of QRS <120 ms (119 ms); C and D. The morphology (the left anterior branch block) and duration of the stimulus to the ventricular activation peak (S‐Vmax) was similar between selective and non‐selective pacing

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  Figure 3. Schematic diagram of the study.;LBBaP, left bundle branch area pacing; Pts, patients; RV, right ventricular; RVP, right ventricular pacing