[Genetic testing in hereditary arrythmia syndromes today and in the future].

Genetic testing already has a substantial impact in identifying hereditary arrhythmia syndromes after sudden death in young patients. This report provides information on current developments, available options and reasonable approaches in the clinical setting. In addition the limitations of genetic testing are discussed. Genetic testing is only useful for patients in the context of clinical findings interpreted by an experienced cardiogenetics team.