2.3. Flecainide challenge test and ECG criteria

IV: 2 mg/Kg for 10 min as infusion, max 150 mg.

Oral: 400 mg stat.

Medical records of all patients were reviewed to extract information on clinical, laboratory, ECG characteristics, details of flecainide challenge test, electrophysiological findings and other relevant data.

Of the study population, 3 groups were considered for further analysis for predicting positive response of FCT: Group 1 – FCT Positive among patients with non-type 1 Brugada ECG pattern, Group 2 – FCT Negative among the patients with non-type 1 Brugada ECG pattern, and Group 3 – FCT Positive among patients with no spontaneous Brugada ECG pattern.