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[A study in cases of Brugada-type electrocardiogram and its management proposals in health examination].

In 1992, Brugada et al. reported a characteristic electrocardiogram (ECG) pattern and ST-segment elevation in leads V1 to V3 associated with sudden death in patients without demonstrable structural heart disease. That disease is now called Brugada Syndrome. The diagnostic criteria for the Brugada Syndrome have still not been decided on, and the prevalence of Brugada type ECG (B-ECG) varies widely in Japan. Therefore, we should consider B-ECG according to the consensus statement from the European Society of Cardiology and we proposed its management in health examinations. There were 35 B-ECG cases (0.9%), all male out of 3,875 Postal Service Trainees. There were 5 cases of Type I (Coved) (0.13%), 21 cases of Type II (0.54%), and 9 cases of Type III (0.23%), Only one case (0.026%) of Brugada Syndrome was found, and eventually, he received an Implantable Cardioverter Defibrillator (ICD). Type I (Coved) may be a more important electrocardiographic factor having a stronger causal relation to Ventricular Arrhythmia. Therefore, in management of health examinations, Type I patients with syncope or a family history of sudden cardiac death should visit a cardiologist for ICD-implantation, and even without any cardiac symptoms (syncope and a family history of sudden death), they are advised to visit a cardiologist for a program electrical stimulation (PES). Type II and III patients with any cardiac symptoms are advised to visit a cardiologist for PES or a drug challenge.