Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the chest radiograph obtained 1 day prior , there has been interval placement of a 2 lead cardiac pacemaker with leads terminating in the right atrium and right ventricle . There are bilaterally decreased lung volumes and increased , small , right greater than left , pleural effusions and adjacent bibasilar atelectasis . There is no pneumothorax . Right hemidiaphragm elevation with superimposed colonic bowel gas is unchanged in appearance since at least ___ . There is probably a small sliding hiatal hernia . Thoracic scoliosis , tortuous aorta , and tortuous trachea are unchanged .
    OUTPUT:
    
Appropriate position of cardiac pacemaker leads in the right atrium and right ventricle . No pneumothorax . Interval enlargement of right greater than left pleural effusions and adjacent bibasilar atelectasis .