Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The interval placement of duo lead permanent pacemaker , with leads terminating in the right atrium and right ventricle . No visible pneumothorax . Cardiomediastinal contours are stable in appearance , and lungs and pleural surfaces are clear .
    OUTPUT:
    
Status post placement of dual lead pacer as detailed above , with no visible pneumothorax .