“…16,224,333,369 -379 Observational studies suggest that up to 30% of deaths in patients with DCM are sudden. 380 Mortality in medically treated patients with DCM and a prior history of syncope may exceed 30% at 2 years, whereas those treated with an ICD experience a high frequency of appropriate ICD therapy. 16,372,373 CAT (Cardiomyopathy Trial) enrolled patients with recently diagnosed DCM with randomization to medical therapy versus medical therapy with an ICD.…”