Key result
RF ablation targeting the atrial activation focusing point eliminates slow pathway conduction in one AVNRT case.
Why the study?
Collateral atrioventricular block can occur in 0.4% to 1% of AVNRT catheter ablation cases, prompting strategies targeting sites more distal to the His-bundle recording site.
Does targeting the atrial activation focusing point (AFP) during ablation safely and effectively eliminate slow/fast AVNRT?
Population
A 29-year-old female with sudden palpitations due to slow/fast AVNRT
Comparison
Radiofrequency ablation targeting the atrial activation focusing point
Design
Case report
Follow-up
2 years
Authors
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May support AFP targeting to minimize AV block in AVNRT ablation; hypothesis-generating and requires prospective validation.
Case Report (n=1)
No
Does targeting the atrial activation focusing point (AFP) during ablation safely and effectively eliminate slow/fast AVNRT?
Targeting the atrial activation focusing point (AFP) may be a safe and effective novel ablation strategy for slow/fast AVNRT that minimizes the risk of atrioventricular block.
Sudo et al. (2025) conducted a case report in Slow/fast atrioventricular nodal reentrant tachycardia (AVNRT) (n=1). Radiofrequency ablation targeting the atrial activation focusing point (AFP) was evaluated on Elimination of slow pathway conduction and non-inducibility of AVNRT. In a 29-year-old female with AVNRT, radiofrequency ablation targeting the atrial activation focusing point successfully eliminated slow pathway conduction without complications over 2 years.
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