[Infusion of flecainide in a patient with atrial fibrillation and latent Brugada's syndrome has determined modifications of the electrocardiogram similar to those of a septal myocardial infarct].

ST-segment elevation in the presence of typical chest pain is a fundamental criterion for the diagnosis of acute myocardial infarction. We describe the case of a 62-year-old male with latent Brugada syndrome in whom the intravenous infusion of flecainide for paroxysmal atrial fibrillation caused ECG abnormalities similar to those of an acute septal myocardial infarction. The patient was not submitted to systemic thrombolysis since accurate echocardiographic evaluation was not suggestive of the presence of any wall motion abnormality and blood analysis did not reveal any increase in the levels of myocardial enzymes. The clinical outcome was not complicated and the patient was finally discharged.