Question: What are the main characteristics/symptoms of the "Brugada" syndrome

Context:
In 1992, Brugada and Brugada first described a new entity, which became known as Brugada syndrome, that is associated with a high risk of ventricular arrhythmias and sudden cardiac death in patients without structural heart disease. This syndrome is characterized by a distinct electrocardiographic phenotype, type 1 Brugada pattern, consisting of a coved ST-segment elevation (≥0.2 mV) followed by a negative T wave in more than one right precordial lead.
Brugada syndrome predisposes individuals to ventricular arrhythmias and sudden cardiac death, in the absence of structural heart disease. The typical Brugada electrocardiogram (ECG) phenotype is often concealed in affected population
Brugada syndrome is a rare cardiac arrhythmia characterized by electrocardiographic right bundle branch block and persistent ST-segment elevation in the right precordial leads.
Brugada syndrome is a genetically determined familial disease with autosomal dominant transmission and variable penetrance, conferring a predisposition to sudden cardiac death due to ventricular arrhythmias.
Brugada syndrome (BrS) 
BrS is considered to be a primary inherited channelopathy often involving the inward sodium current and the diagnosis has traditionally required the exclusion of overt structural heart disease. 
Brugada syndrome (BrS) primarily associates with the loss of sodium channel function.
PKP2 mutations may be a molecular substrate leading to the diagnosis of BrS.
Brugada syndrome is an inherited arrhythmia syndrome predisposing to sudden cardiac death. 
the first mutations in SCN5A encoding the cardiac sodium channel Nav1.5 were reported.
Brugada syndrome is characterized by typical ECG features, ventricular arrhythmias and sudden cardiac death (SCD), more frequent during nighttime.
Brugada syndrome (BrS) is an inherited cardiac disease characterized by ST segment elevation in V1-V3 ECG leads. Mutations SCN5A gene encoding for the cardiac voltage-gated Na(+) channel are found in some BrS patients, but also in family members with isolated conduction disturbances.
Brugada syndrome (BrS), one of the most frequently diagnosed inherited arrhythmogenic syndromes, is responsible for more than 4% of all sudden deaths and at least 20% of sudden deaths in patients with structurally normal hearts.
Brugada syndrome is a major cause of sudden death in young adults.
Brugada's syndrome is one of the main causes of sudden death in young adults without a structural heart disease
The Brugada syndrome is a clinical-electrocardiographic diagnosis characterized by syncopal episodes or sudden death (caused by ventricular tachycardia and ventricular fibrillation) in patients with a structurally normal heart with a characteristic electrocardiographic pattern consisting of ST segment elevation in precordial leads (Vl-V3) and a morphology of the QRS complex resembling right bundle branch block (the latter can transiently disappear). Timely diagnosis and adequate treatment may essentially decrease mortality of this disease.
Brugada syndrome
In 1992 we described a new syndrome consisting of syncopal episodes and/or sudden death in patients with a structurally normal heart and a characteristic electrocardiogram displaying a pattern resembling right bundle branch block with an ST segment elevation in leads V1 to V3. In 1998 it was described that the disease is genetically determined with an autosomal dominant pattern of transmission. Three different mutations have been identified. All three mutations affect the structure and the function of the sodium channel SCN5A.
The diagnosis is easily made by means of the electrocardiogram (ECG). The presence of concealed and intermittent forms, however, makes the diagnosis difficult in some patients.
The Brugada syndrome is a clinical-electrocardiographic diagnosis characterised by syncopal or sudden death episodes in patients with a structurally normal heart with a characteristic electrocardiographic pattern consisting of ST segment elevation in the precordial leads V1 to V3 and a morphology of the QRS complex resembling a right bundle branch block. In many patients with the Brugada syndrome, the electrocardiographic manifestations transiently normalize; leading to underdiagnosis of the syndrome. 
The incidence of sudden death in this syndrome is very high and can only be prevented by implanting a cardioverter-defibrillator. 

Answer: In 1992, Brugada and Brugada first described a new entity, which became known as Brugada syndrome, that is associated with a high risk of ventricular arrhythmias and sudden cardiac death in patients without structural heart disease. This syndrome is characterized by a distinct electrocardiographic phenotype, type 1 Brugada pattern, consisting of a coved ST-segment elevation (≥0.2 mV) followed by a negative T wave in more than one right precordial lead. The typical Brugada electrocardiogram (ECG) phenotype is often concealed in affected population. Brugada syndrome is a genetically determined familial disease with autosomal dominant transmission and variable penetrance, conferring a predisposition to sudden cardiac death due to ventricular arrhythmias. Brugada syndrome (BrS)is considered to be a primary inherited channelopathy often involving the inward sodium current and the diagnosis has traditionally required the exclusion of overt structural heart disease. Brugada syndrome (BrS) is an inherited cardiac disease characterized by ST segment elevation in V1-V3 ECG leads. Mutations SCN5A gene encoding for the cardiac voltage-gated Na(+) channel are found in some BrS patients, but also in family members with isolated conduction disturbances.