Limitations
The small number of LBBAP patients is a limitation of this single-center study and our results need to be confirmed in larger studies. Both implanters (JDP and FVH) have experience with both HBP and LBBAP. Therefore, our results might not apply to implanters with less experience in these new techniques. Follow-up in this study was limited and longer follow-up in a larger population is needed to assess long-term pacing characteristics. As no lead revision occurred within our population, safety and feasibility of extraction procedures with different types of pacing leads implanted at the left side of the septum remains to be determined.