Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy , aortic valve replacement , and CABG . Mild to moderate enlargement of the cardiac silhouette is unchanged . The mediastinal and hilar contours are similar . There is persistent moderate pulmonary edema with small bilateral pleural effusions , larger on the left . Patchy opacities in the lung bases likely reflect compressive atelectasis . No pneumothorax is present . No acute osseous abnormality is detected .
    OUTPUT:
    
No substantial interval change in appearance of moderate pulmonary edema with small bilateral pleural effusions and probable compressive bibasilar atelectasis .