Key result
Slow pathway cryoablation successfully eliminates incessant fast-slow AVNRT with zero recurrence at 2 years.
Why the study?
Fast-slow atypical atrioventricular nodal reentrant tachycardia (aAVNRT) can cause incessant long RP tachycardia leading to heart failure, but its management in pediatric patients is not well described.
Comparison
Slow pathway cryoablation with an 8-mm-tip cryocatheter
Design
Case report
Follow-up
2 years
Authors
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May prompt EP evaluation in adolescents with HF and LRPT; leaves open validation in larger cohorts.
Case Report (n=1)
Cryoablation can be successfully used to treat incessant fast-slow atypical AVNRT leading to tachycardia-induced cardiomyopathy in pediatric patients.
Yakup Ergül (2017) conducted a case report in Incessant fast-slow atypical atrioventricular nodal reentrant tachycardia with tachycardia-induced cardiomyopathy (n=1). Slow pathway cryoablation was evaluated on Recurrence of tachycardia and improvement in shortening fraction. Slow pathway cryoablation successfully treated incessant fast-slow atypical atrioventricular nodal reentrant tachycardia in a 15-year-old female, with no recurrence over a 2-year follow-up.
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