Key result
Successful slow pathway radiofrequency ablation significantly shortened the antegrade fast pathway effective refractory period from 300 ms to 258 ms in pediatric AVNRT patients with dual AV nodal pathways (P=0.008).
Why the study?
Does radiofrequency catheter ablation affect the fast pathway effective refractory period differently in pediatric AVNRT patients with and without dual AV nodal pathways?
Population
67 pediatric patients with atrioventricular nodal reentrant tachycardia (AVNRT)
Comparison
Radiofrequency catheter ablation vs Pediatric AVNRT patients without dual AV nodal…
Design
Cohort
Authors
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Hypothesis-generating for fast pathway changes in pediatric AVNRT ablation; extends adult observations but requires prospective validation.
Observational (n=67)
No
Does radiofrequency catheter ablation affect the fast pathway effective refractory period differently in pediatric AVNRT patients with and without dual AV nodal pathways?
p-value: p=0.008
Successful slow pathway ablation significantly shortens the fast pathway effective refractory period in pediatric AVNRT patients with dual AV nodal pathways, extending findings previously observed in adults.
Lee et al. (2006) conducted an observational in Atrioventricular nodal reentrant tachycardia (AVNRT) (n=67). Radiofrequency catheter ablation vs. Patients without dual AV nodal pathways / Pre-ablation baseline was evaluated on Antegrade fast pathway effective refractory period (ERP) change after ablation in children with antegrade dual AV nodal pathways (p=0.008). Successful slow pathway radiofrequency ablation significantly shortened the antegrade fast pathway effective refractory period from 300 ms to 258 ms in pediatric AVNRT patients with dual AV nodal pathways (P=0.008).
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