*** for p < 0.001
Figure 7: UHF-ECG ventricular
depolarization patterns change based on specific pacing locations in the
right ventricular septum with conduction system engagement. Please note
the minimal difference in QRS morphology between cSp and nsHB capture,
despite the UHF-ECG depolarization pattern being significantly different
and the fact that the HV interval in the c-Sp location was 40 ms
indicating the lead tip being positioned still on the His bundle.