Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Previous median sternotomy sutures are unchanged in position when compared to the prior study . Lung volumes remain low . There are bilateral pleural effusions with associated atelectasis . Superimposed infection can not be excluded . Persistent left lower lobe atelectasis . Pulmonary vascular congestion is similar in degree when compared the prior study . Moderately severe cardiomegaly is unchanged . No pneumothorax seen .
    OUTPUT:
    
No significant interval change when compared to the prior study .