Ventricular fibrillation in a patient with prominent J (Osborn) waves and ST segment elevation in the inferior electrocardiographic leads: A Brugada syndrome variant?

Recurrent ventricular fibrillation was observed in a 29-year-old Vietnamese man who did not exhibit structural heart disease. The patient's ECG showed prominent J (Osborn) waves and ST segment elevation in the inferior leads that were not associated with hypothermia, serum electrolyte disturbance, o r myocardial ischemia, Rate-dependent change in the amplitude of J waves an d ST segment elevation also were observed. An implantable cardioverter defi brillator (ICD) was implanted. Adjunctive treatment with amiodarone reduced J wave amplitude, preventing ventricular fibrillation and ICD shocks. Prom inent J waves and ST segment elevation in the inferior leads may serve as a n important diagnostic sign to detect high-risk individuals with a history of unexplained syncope, ICD implantation plus amiodarone is the treatment o f choice.