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No evidence of infiltrates; evidence of pulmonary edema suggestive of congestive heart failure; enlarged cardiac silhouette. Echocardiogram LVH, reduced global left ventricular systolic function, estimated EF 20%; evidence of impaired ventricular relaxation, Stage 1 diastolic dysfunction. Assessment Admit to hospital for acute exacerbation of heart failure. What are the classification and staging of chronic heart failure for this patient?