Abstract
This study aimed to investigate the feasibility and effectiveness of left bundle branch area pacing (LBBaP) in young children. From September 2020 to May 2021, a total of 31 children (≤ 7 years) with complete atrioventricular block were included. All patients were scheduled to undergo LBBaP. Pacing parameters, and cardiac function and synchrony were evaluated during follow-up. LBBaP succeeded in 21 children (3.3 ± 2.1 years old), with a success rate of 70.9%. LBBaP failed in nine children, who eventually received right ventricular septal pacing (RVSP). The average postoperative QRS duration in patients of LBBaP group was narrower than that of RVSP group: 100.9 ± 9.1 versus 114.2 ± 11.9 ms (P = 0.002). The median follow-up duration was 12 [interquartile range (IQR) 6–15] months. At last time of follow-up, the capture threshold of ventricular electrode in patients of LBBaP group were significantly lower than that of RVSP group (0.70 ± 0.25 versus 1.39 ± 0.94 V, P = 0.011). The echo-left ventricular ejection fraction (LVEF) in patients in the LBBaP group was better than that in the RVSP group (66.1 ± 3.3 versus 63.1 ± 2.2%, P = 0.025). LBBaP can be safely and effectively administered in young children. Satisfactory pacing parameters, and narrow QRS durations were obtained.
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This study was funded by Dr. Wu Shunde Foundation for Research in Medical Science, Grant No. 20240000811.
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JL performed manuscript writing and clinical data analysis. XL and HJ performed manuscript revision and supervision. HJ, YZ, and JC participated in the methodology. ML and HZ participated in clinical data collection.
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This is an observational study. All procedures involving human participants were performed in accordance with the ethical standards of the institution and the Helsinki Declaration of 1964. This study was approved by the Ethics Committee of our hospital (Ethics Document Batch Number:202003).
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Every patient provided an informed consent form and an anaesthesia consent form. Consent forms were signed by the patient’s guardian prior to pacemaker implantation.
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Li, J., Jiang, H., Zhang, Y. et al. A Study to Analyse the Feasibility and Effectiveness of Left Bundle Branch Area Pacing Used in Young Children. Pediatr Cardiol 45, 681–689 (2024). https://doi.org/10.1007/s00246-023-03119-8
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DOI: https://doi.org/10.1007/s00246-023-03119-8