3.2 Validation of LS compared to CP pacing
In the validation-group, LBBAP was obtained in all patients with non-selective (4/10 patients, 40%) or selective (6/10 patients, 60%) LBB capture. Unipolar pacing impedance from the LS and CP were compared at each step of the implantation procedure and showed an excellent correlation (R square 0.9481, p<0.0001) with an insignificant bias of 12 ± 37 Ohm. (Figure 2) Recording of local unipolar electrograms (EGM) showed equivalent performance of LS and CP with LBB EGM recording in the same 6/10 patients (60%) and similar morphology of the paced QRS. (Figure 3)