Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiograph demonstrates cardiomegaly . When compared to chest radiograph ___ , there is decreased but persistent pulmonary edema with right pleural effusion . There is no focal consolidation . There is no pneumothorax . A right - sided pacer is identified with its single lead terminating in the standard position within the right ventricle .
    OUTPUT:
    
Improved but persistent pulmonary edema .