Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the most recent radiograph , there has been interval removal of although monitoring and support devices in this post CABG patient , including the mediastinal drains , and anterior chest tube , endotracheal tube , NG tube , and Swan - Ganz catheter . The right IJ introducer sheath is still present . As expected , lung volumes have decreased , causing apparent increase in the size of the cardiac silhouette and bibasilar atelectasis . There is no new large pleural effusion or pneumothorax . Patient is status post valve replacement and median sternotomy with intact wires .
    OUTPUT:
    
1 . No evidence of pneumothorax . No new large pleural effusion . 2 . Expected post extubation changes as above .