Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The initial radiograph of 08 :34 shows interval removal of the nasogastric tube . Sternotomy wires are intact and aligned . Bilateral pigtail catheters are unchanged in position . An endotracheal tube terminates at the level of the clavicles . A left IJ central venous catheter terminates at the junction of the brachiocephalic vein and SVC . There is no pneumothorax . Moderate right and small left layering pleural effusions are slightly increased on the right . Moderate cardiomegaly despite the projection is also unchanged . An unchanged retrocardiac airspace opacity may either be due to infection or atelectasis . The followup radiograph of 10 :17 shows interval placement of a feeding tube , which enters the stomach . Aeration at the left lung base continues to improve . There is no other significant interval change .
    OUTPUT:
    
Nasogastric tube replaced with a feeding tube , which enters the stomach . Slightly improved aeration at the left lung base . Otherwise no significant interval change .