IUMSEM

Brugada syndrome has 3 different ECG patterns:

  Type 1 has a coved type ST elevation with at least 2 mm J-point elevation a gradually descending ST segment and a negative T-wave.

   Type 2 has a saddle back pattern with a least 2 mm J-point elevation and at least 1 mm ST elevation with a positive or biphasic T-wave. Type 2 pattern can occasionally be seen in healthy subjects.

  Type 3 has a saddle back pattern with less than 2 mm J-point elevation and less than 1 mm ST elevation with a positive T-wave. Type 3 pattern is not uncommon in healthy subjects. The pattern seen on the ECG is persistent ST elevations in the leads V₁-V₃ with a RBBB appearance with or without the terminal S waves in the lateral leads that are associated with a typical RBBB. A prolongation of   the PR interval is also frequently seen. PR interval is also frequently seen.