Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Median sternotomy wires appear intact . Surgical clips projecting over the mediastinum likely reflects prior coronary artery bypass . The lungs are normally expanded and clear . The heart size is decreased , now normal . The mediastinal and hilar contours are normal . There is no pleural effusion or pneumothorax . Epicardial pacing leads project over the heart .
    OUTPUT:
    
No acute cardiopulmonary abnormality . The heart size is decreased , now normal .