Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal chest radiograph demonstrates a left chest wall pacer device with leads projecting over the right atrium and ventricle . A right approach PICC may be pulled back compared to ___ , but appears to terminate in the mid to low SVC . A large hiatal hernia with left lower lobe atelectasis is unchanged . There is no new focal consolidation , pleural effusion , or pneumothorax . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
Right approach PICC terminating in the mid to low SVC . This may be pulled back compared to ___ , but remains centrally placed .