True regarding cardiomyopathy -

Ans. is 'a' i.e., RV dilatation is present; 'b' i.e., May result from thyroxicosis; 'c'i.e. Secondary to alcohol Most common type of intrinsic cardiomyopathy is dilated cardiomyopathy in which all chambers of hea (including right ventricle) are dilated. Thyrotoxicosis and alcohol can cause dilated cardiomyopathy. CMDT o Prognosis of dilated cardiomyopathy is not good. Unfounately, by the time it is diagnosed, the disease often has reached an advanced stage and hea failure has occured. Consequently, about 50% of patients with dilated cardiomyopathy live 5 years once hea failure is diagnosed; about 25 percent live 10 years after such diagnosis.