What are etiologies causing HF?

Depressed EF (<40%) (CAD [MI], chronic pressure overload [HTN, obstructive valve disease], chronic volume overload [regurg, shunting], chronic lung disease [cor pulmonale, pulmonary vascular disorders], Chaga's disease, disorders of rate and rhythm, toxic induced damage, non-ischemic dilated cadiomyopathy [familial/infiltrative disorders]) Preserved EF (>50%) (Pathologic hypertrophy [primary or secondary HTN], aging, fibrosis, endomyocardial disorders, restrictive cardiomyopathy [infiltrative, storage disorders (hemochromatosis)]) High output state (metabolic disorders [thyrotoxicosis, beriberi], excessive blood flow [AV shunt, chronic anemia])