Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy , CABG and aortic valve replacement . Unfolding of the thoracic aorta is noted . There is a left - sided cardiac pacing device with its leads projecting over the right atrium and ventricle . The heart is top - normal in size , and there is mild central vascular congestion . Atelectasis noted along the right lung base . There is no focal consolidation , pleural effusion or pneumothorax . A hiatal hernia is noted , and degenerative changes of the thoracic spine are noted including compression deformity at the thoracolumbar junction . . This is unchanged compared to the prior study from ___ .
    OUTPUT:
    
Mild central vascular congestion .