Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient has had median sternotomy with aortic valve replacement . A left pectoral AICD remains in place . Right IJ central venous catheter terminates in the low SVC . Endotracheal tube terminates at the level of the clavicles . A nasogastric tube can only be traced to the level of the mid esophagus . Visualization is likely limited by exam technique and the patient 's body habitus . A left basilar pigtail catheter remains in place . Lung volumes are very low , but there is no appreciable change in small layering pleural effusions and bibasilar subsegmental atelectasis . Mild pulmonary edema is also unchanged . Cardiomegaly despite the projection is unchanged .
    OUTPUT:
    
No significant interval change in mild pulmonary edema , small bilateral pleural effusions , and bibasilar subsegmental atelectasis .