# Case Report: Focal cryoablation vs. radiofrequency ablation in a pediatric patient with para-Hisian accessory pathway with effect from the non-coronary aortic cusp

## TL;DR

A pediatric patient with a heart condition had successful treatment using cryoablation after previous procedures failed.

## Contribution

Demonstrates successful use of cryoablation in a challenging location for treating arrhythmia in a pediatric patient.

## Key findings

- Radiofrequency ablation failed in treating the patient's arrhythmia.
- Cryoablation successfully treated the arrhythmia in the non-coronary aortic cusp.
- The patient had three ablation procedures before success was achieved.

## Abstract

A 12-lead electrocardiogram of a pediatric patient with Wolff–Parkinson–White syndrome was consistent with the anteroseptal accessory pathway. The patient had three ablation procedures because of the recurrences of the arrhythmia. In our case, successful cryoablation was performed in the non-coronary cusp of the aortic root.