Permanent left bundle branch area pacing in a child with a third-degree atrioventricular block: A case report.

Permanent left bundle branch area pacing (LBBP) is a promising physiological pacing technique that has emerged in recent years. However, LBBP is almost exclusively clinically applied in adult patients. The feasibility and safety of the use of LBBP in children have not been well-assessed. Here, we report the case of a 6-year-old child with a third-degree atrioventricular block after surgical aortic valve replacement who successfully received a permanent LBBP.