Successful treatment of electrical storm in a child with early repolarization syndrome by orciprenaline and radiofrequency ablation

Figures

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  Figure 1. (a) The 12-lead surface electrocardiogram (ECG) on admission with the signs of malignant early repolarization in the inferolateral leads. (b) This Holter ECG record shows the episodes of ventricular fibrillation and implantable cardioverter defibrillator shocks in the pediatric intensive care unit

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  Figure 2. (a) This intracardiac record demonstrates the Purkinje potential before the ablation of the Purkinje network. (b) After the ablation, the J-point elevation almost disappeared in the 12-lead electrocardiogram and the late diastolic potentials from the ventricle were seen in the intracardiac record. (c) The fluoroscopy image shows the irrigated-tip radiofrequency ablation catheter in the left ventricle as well as the diagnostic catheter and the implantable cardioverter defibrillator coil in the right ventricle. (d) Three-dimensional mapping determining the ablated Purkinje potentials in the right (black points) and left (yellow points) ventricles

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  Figure 3. This surface electrocardiogram after the ablation shows no early repolarization characterized by the J-point elevation