Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right pectoral pacemaker and its leads are in unchanged positions . Sternotomy wires are intact . Moderate left pleural effusion is slightly increased compared to ___ . Left lower lobe is collapsed . Right pleural effusion is small . Prosthetic aortic valve is noted .
    OUTPUT:
    
Moderate left and small right pleural effusions are slightly increased compared to ___ . Upper lungs are clear .