Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal chest radiograph demonstrates a left chest wall pacer device with leads overlying the right atrium and ventricle , unchanged in position . Heart size remains enlarged , unchanged . There is improvement of diffuse bilateral opacities , suggestive of improved mild pulmonary edema . More focal opacity in the lower right lung is likely atelectasis . Bilateral pleural effusions are persistent , increased on the right and unchanged on the left . There is no pneumothorax . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
1 . Improvement of mild pulmonary edema . 2 . Persistent bilateral pleural effusions , increased on the right and unchanged on the left .