Fig. 3. Serial ST segment changes recorded by the standard 12-lead ECGs using Brugada leads. (A) ECG acquired at baseline showed no significant ST segment elevation. (B) ECG acquired 1 hours after oral flecainide 400 mg single dose administration showed appearance of coved-type (type 1 Brugada pattern) ST segment elevations in the V1–V2 Brugada leads, which were located in the third intercostal space.

ECG = electrocardiogram.