Low-voltage bridge mapping for pediatric AVNRT ablation achieved 90% clinical success at 1 year versus 80% with a traditional approach, though not statistically significant.
Cohort (n=105)
No
Does low-voltage bridge mapping improve clinical success and reduce complications compared to a traditional approach in pediatric patients undergoing radiofrequency ablation for AVNRT?
Low-voltage bridge mapping for pediatric AVNRT ablation is safe and achieves comparable or numerically higher one-year clinical success while reducing RF application requirements compared to traditional approaches.
Absolute Event Rate: 90% vs 80%
ABSTRACT Background Low‐voltage bridge mapping (LVBM) is a recently introduced approach to atrioventricular nodal reentry tachycardia (AVNRT) ablation that may facilitate precise slow‐pathway targeting. Our center implemented LVBM for radiofrequency (RF) AVNRT ablation in children in April 2023. Early results demonstrated procedural advantages without prolonging procedure time. Aim The present study evaluates one‐year follow‐up outcomes after the introduction of LVBM. Methods We retrospectively analyzed all pediatric AVNRT RF ablations performed between January 1, 2019, and August 31, 2024. Outcomes of procedures performed using a traditional approach were compared with those guided by LVBM. Clinical success, complications, RF application parameters, and total procedure time were assessed at one‐year follow‐up. Results A total of 105 patients were included (61 controls, 44 LVBM). Baseline characteristics did not differ significantly between groups. At one‐year follow‐up, clinical success was higher in the LVBM group (90% vs. 80%), although the difference was not statistically significant. No complications were observed in either group. Conclusions Introduction of low‐voltage bridge mapping for RF AVNRT ablation in children reduces the number and duration of RF applications without prolonging procedure time. One‐year follow‐up demonstrates durable efficacy and safety, supporting LVBM as a valuable refinement of pediatric AVNRT ablation strategies.
Książczyk et al. (Mon,) conducted a cohort in Atrioventricular nodal reentry tachycardia (AVNRT) (n=105). Low-voltage bridge mapping (LVBM) vs. Traditional approach was evaluated on Clinical success at one-year follow-up. Low-voltage bridge mapping for pediatric AVNRT ablation achieved 90% clinical success at 1 year versus 80% with a traditional approach, though not statistically significant.