Shanghai ScoreLoading...ECG (12-lead/ambulatory)Type 2 or 3 Brugada ECG pattern that converts with provocative drug challenge+2Fever-induced type 1 Brugada ECG pattern at nominal or high leads+3Spontaneous type 1 Brugada ECG pattern at nominal or high leads+3.5Clinical historyNo clinical history0Atrial flutter/fibrillation in patients <30 yrs without alternative etiology+0.5Syncope of unclear mechanism/unclear etiology+1Suspected arrhythmic syncope+2Nocturnal agonal respirations+2Unexplained cardiac arrest or documented VF/polymorphic VT+3Genetic test resultNo pathogenic mutation in BrS susceptibility gene0Probable pathogenic mutation in BrS susceptibility gene+0.5