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. 2022 May 14;3(4):358–367. doi: 10.1016/j.hroo.2022.05.004

Figure 2.

Figure 2

Left bundle branch pacing (LBBP) in a patient with right bundle branch block (RBBB). Twelve-lead electrocardiogram along with intracardiac electrograms from His and LBBP leads are shown at a sweep speed of 100 mm/s during left ventricular septal pacing (LVSP), nonselective (nsLBBP) and selective LBBP (sLBBP), and bipolar pacing with anodal (right ventricular [RV] septal) capture. Note the stimulus to peak R-wave times of 104, 88, and 88 ms during LVSP, nsLBBP, and sLBBP, respectively, with significant QRS reduction during anodal capture. Fluoroscopic views of LBBP and His leads are shown in right anterior oblique (RAO) and left anterior oblique (LAO) projections.