title: Unexplained cardiac failure.
mesh_terms: D000740:Anemia / Q000150:complications; D001018:Aortic Diseases / Q000150:complications; D009202:Cardiomyopathies / Q000150:complications*; D002908:Chronic Disease; D003327:Coronary Disease / Q000150:complications; D003937:Diagnosis, Differential; D004562:Electrocardiography; D004697:Endocarditis, Bacterial / Q000150:complications; D006331:Heart Diseases / Q000150:complications; D006333:Heart Failure / Q000209:etiology*; D006338:Heart Neoplasms / Q000150:complications; D006801:Humans; D006976:Hypertension, Pulmonary / Q000150:complications; D006980:Hyperthyroidism / Q000150:complications; D008103:Liver Cirrhosis / Q000150:complications; D011655:Pulmonary Embolism / Q000150:complications