PMC9871475_01
Basal (A) and post-flecainide infusion (B) twelve-lead electrocardiographic recordings.
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F1
The sodium channel blocker test using flecainide 2 mg/kg over 10 minutes revealed a diagnostic type I Brugada ECG (Figure 1).
Time-domain electroanatomical map. In the antero-superior region of right ventricle outflow tract; the systolic late potentials were shown.
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F2
Polymorphic ventricular tachycardia induced by programmed ventricular stimulation from right ventricular outflow tract (RVOT) (A). The early diastolic potentials were recorded by the mapping catheter placed in RVOT (B).
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F3
DC-shock (Figure 3A). During the arrhythmic event, the early diastolic potentials were recorded by the high-density diagnostic catheter (IntellaMap Orion , Boston Scientific Corporation, US) placed in RVOT (Figure 3B). Subcutaneous ICD implantation was performed in order to prevent the sudden cardiac death.