Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided dual - chamber pacemaker device is noted with leads terminating in the right atrium and right ventricle , unchanged . Heart size is normal . Mediastinal and hilar contours are unremarkable . Calcified aortic knob is re - demonstrated . The lungs are clear . Pulmonary vascularity is normal . No pleural effusion or pneumothorax is present . No acute osseous abnormalities seen
    OUTPUT:
    
No acute cardiopulmonary abnormality .