Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable single frontal chest x-ray was performed with the patient in upright position . Compared to earlier study , there has been no significant interval change in the moderate bilateral pleural effusions and associated bibasilar atelectasis . Lung volumes are low . The heart remains moderately enlarged . There is no pneumothorax or pulmonary edema . A left subclavian central line has been removed . Median sternotomy wires are intact .
    OUTPUT:
    
No interval change in the appearance of the heart and lungs .