Key result
Radiofrequency ablation for AVNRT achieves 99% procedural success, though junctional rhythm cycle length lacks predictive value.
Why the study?
Although junctional rhythm is generally an accepted requirement for successful AVNRT ablation, detailed prospective studies determining its characteristics and impact on slow pathway conduction were lacking.
What are the characteristics of junctional rhythm and the impact of individual RF applications on slow pathway conduction during AVNRT ablation?
Comparison
Impact and characteristics of individual RF applications with vs without JR
Design
Multicentre prospective observational study
Follow-up
Mean follow up of 15 ± 6 months
Authors
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Supports junctional rhythm necessity in AVNRT ablation; leaves open cycle length utility for predicting effective lesions.
Observational (n=67)
Yes
What are the characteristics of junctional rhythm and the impact of individual RF applications on slow pathway conduction during AVNRT ablation?
Junctional rhythm is required for acute success in AVNRT ablation, but its cycle length does not predict effective slow pathway modification.
Sugumar et al. (2021) conducted an observational in Typical atrioventricular nodal re-entrant tachycardia (AVNRT) (n=67). Radiofrequency (RF) ablation was evaluated on Procedural success (defined as ≤1 AV nodal echo). Radiofrequency ablation for AVNRT achieved procedural success in 99% of patients, with junctional rhythm required for success, though its cycle length did not predict effective applications (P=0.4).
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