Frequency of detection of the Brugada syndrome signs in the course of ECG registration

The aim of the study was to assess prevalence of the Brugada syndrome during carrying out ECG in the conditions of medico-sanitary division of a large industrial enterprise. Signs of the Brugada syndrome were found on 20 of 42779 ECGs (0.047%) registered during 1 year in patients aged 22-68 years. Type 2 syndrome was noted in 4 patients, others had type 2 of the syndrome. Men comprised 90% of patients. At 24 hour ECG monitoring paroxysm of nonsustained ventricular tachycardia was registered in 1 patient during night hours. Cases of sudden death were registered in families of 3 patients (all men older than 45 years). Four patients experienced syncopi clinical picture of which resembled more neurocardiogenic but not arrhythmic attacks. Thus prevalence of the Brugada syndrome in our population was quite low.