There is no cure for Brugada syndrome.[3] Those at higher risk of sudden cardiac death may be treated using an implantable cardioverter defibrillator (ICD).[2] In those without symptoms the risk of death is much lower, and how to treat this group is less clear.[3][3] Isoproterenol may be used in the short term for those who have frequent life-threatening abnormal heart rhythms, while quinidine may be used longer term.[1][4] Testing people's family members may be recommended.[3]