Shanghai Brugada Score

Diagnostic Scoring System for Brugada Syndrome

Documented VF or polymorphic VT, or aborted cardiac arrest

Nocturnal agonal respiration

Suspected arrhythmic syncope

Syncope of unknown etiology

Spontaneous type 1 Brugada ECG pattern Coved ST elevation ≥2 mm in ≥1 right precordial lead (V1–V2)

Type 1 Brugada ECG pattern with drug provocation only Ajmaline, procainamide, or flecainide challenge

First-degree relative with definite Brugada syndrome

Suspicious SCD in first-degree relative Sudden cardiac death <45 years with negative autopsy

Probable pathogenic SCN5A mutation Loss-of-function variant in sodium channel gene

Total Score 0

Diagnosis Nondiagnostic

Score <2: Brugada syndrome unlikely based on current criteria