Uzm Dr Yakup Y. Yamantürk

ALT Heart Rhythm, Jastrzebski et al. Novel electrocardiographic observations during left bundle branch area pacing: Multiple QRS transition, supernormality, concealed capture, virtual electrode effect, and other phenomena Figure 15. Incremental left bundle branch pacing. Panel A: The V6 R-wave peak time progressively shortens from 78 ms to 68 ms as the paced cycle length (CL) decreases from 800 ms to 300 ms. Panel B: The R-wave peaks of the 800 ms CL and 300 ms CL QRS complexes were aligned to show that the initial latency paradoxically shortens with faster pacing. When reporting and comparing V6RWPT it is important at what rate it was recorded. 10 ms difference between the 800 ms CL and 300 ms CL