Points
I. ECG (12‐lead/ambulatory)
A. Spontaneous type 1 Brugada ECG pattern at nominal or high leads	3.5
B. Fever‐induced type 1 Brugada ECG pattern at nominal or high leads	3
C. Type 2 or 3 Brugada ECG pattern that converts with provocative drug challenge	2
*Only award points once for the highest score within this category. One item from this category must apply.
II. Clinical history*
A. Unexplained cardiac arrest or documented VF/ polymorphic VT	3
B. Nocturnal agonal respirations	2
C. Suspected arrhythmic syncope	2
D. Syncope of unclear mechanism/unclear etiology	1
E. Atrial flutter/fibrillation in patients <30 years without alternative etiology	0.5
*Only award points once for the highest score within this category.
III. Family history
A. First‐ or second‐degree relative with definite BrS	2
B. Suspicious SCD (fever, nocturnal, Brugada aggravating drugs) in a first‐ or second‐degree relative	1
C. Unexplained SCD <45 years in first‐ or second‐degree relative with negative autopsy	0.5
*Only award points once for the highest score within this category.
IV. Genetic test result
A. Probable pathogenic mutation in BrS susceptibility gene	0.5
Score (requires at least 1 ECG finding)
≥3.5 points: Probable/definite BrS
2–3 points: Possible BrS
<2 points: non‐diagnostic

Abbreviations: BrS, Brugada syndrome; SCD, sudden cardiac death; VF, ventricular fibrillation; VT, ventricular tachycardia.