Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided pacemaker device is noted with leads terminating in the right atrium , right ventricle , and region of the coronary sinus , unchanged . Mild cardiomegaly is re - demonstrated . Patient is status post TAVR . Mediastinal and hilar contours are unchanged . Pulmonary vasculature is not engorged . Lungs are hyperinflated with flattened diaphragms suggestive of COPD . Linear opacities in the lung bases are compatible with subsegmental atelectasis . Previously noted small bilateral pleural effusions have nearly resolved . No pneumothorax is present . Severe degenerative changes are noted in the thoracic spine with evidence of diffuse idiopathic skeletal hyperostosis .
    OUTPUT:
    
1 . Bibasilar subsegmental atelectasis and tiny bilateral pleural effusions , decreased in size from the prior study . 2 . Pacing leads in unchanged positions . Mild cardiomegaly , unchanged .