<prompt> Restrictive cardiomyopathy is not associated with?AlcoholHemochromatosisAmyloidosisSarcoidosis  <response>: Ans. is a i.e., Alcohol Restrictive cardiomyopathy is characterized by a primary decrease in ventricular compliance, i.e., ventricles become stiff. Resulting in impaired ventricular filling during diastole because heart cannot relax normally during diastole - Diastolic dysfunction. Ventricles are normal in size or slightly enlarged without any dilatation of cavity. Atrial cavities are dilated. There is interstial fibrosis. Important causes of restrictive cardiomyopathy are:- Three most common causes - Amyloidosis, Radiation, myocardial fibrosis after open heart surgery. Others - Sarcoidosis, hemochromatosis, carcinoid syndrome, Fabrys disease, Loeftlers syndrome, scleroderma, glycogen depositon, neoplasm. 