Brugada syndrome with complete right bundle branch block disclosed by a febrile illness.

The characteristic of right-bundle branch block (RBBB) pattern in Brugada syndrome (BS) is an atypical pattern without a wide S wave in left leads. We present a case of a patient with BS who had a typical ECG pattern of complete RBBB (CRBBB) with a wide S wave in the left leads which was disclosed by a febrile illness. Our observations suggest that physicians should be careful to evaluate ECG change in response to a febrile state, even if the ECG shows a typical CRBBB pattern with deep and wide S waves in the left leads.