What is dilated cardiomyopathy?

Enlarged LV with decreased systolic function (decreased LV EF) Systolic failure more marked than diastolic Causes: inflammatory myocarditis (infective (viral, parastic, bacterial (diphtheria), fungal...) and non-infective (granulamtous disease, giant cell myocarditis, eosinophilic myocarditis, polymyositis, transplant rejection), toxic (alcohol, catecholamine, chemo, IFN, drugs, metals, exposure), metabolic (electrolyte disturb, nutritional def, endocrino (DM, pheo..), obesity, hemochromatosis) and inherited)