Brugada syndrome history and symptoms

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

History and Symptoms

• Brugada syndrome is diagnosed when a Type 1 ST-segment elevation is observed in more than one right precordial lead (V1-V3), in the presence or absence of sodium channel blocking agent, and in conjunction with one or more of the following:

1. Family history of SCD (<45 years old)
2. Documented VF
3. Polymorphic ventricular tachycardia
4. Coved-type ECGs in family members
5. Inducibility of VT with programmed electrical stimulation (PES)
6. Syncope
7. Nocturnal agonal respiration

• Diagnosis is also considered positive when a Type 2 (saddleback pattern) or Type 3 ST-segment elevation is observed in more than one right precordial lead under baseline conditions and can be converted to the diagnostic Type 1 pattern occurs upon exposure to sodium channel blocker.