Are there symptoms that predict sudden cardiac death?

Not always: Sudden cadiac death may be associated with asymtomait congenitalt abnormalities such as arrhythmogenic right ventricular cardiomyopathy, long qt syndromes, brugada syndrome , wpwsyndrome, hypertrophic cardiomyopathy also with such condition as cardac sarcoid.This is compaired to symptomatic condition as ashd, end stage low ejeection cardiiomyopathies.