Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided dual - chamber pacemaker device is re - demonstrated with leads terminating in the right atrium and right ventricle . Lung volumes are low . Heart size is mildly enlarged but unchanged . The mediastinal and hilar contours are stable . Lungs are clear . There is no pulmonary edema , focal consolidation , pleural effusion or pneumothorax . No acute osseous abnormality is identified .
    OUTPUT:
    
No acute cardiopulmonary process .