Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided dual chamber pacemaker leads terminate in the right atrium and right ventricle , in unchanged positions . The patient is status post median sternotomy and CABG . The cardiac , mediastinal and hilar contours are within normal limits . The pulmonary vascularity is normal . Apart from scarring within the left lung base and lung apices , the lungs are clear . No focal consolidation , pleural effusion or pneumothorax is present . There is diffuse demineralization of the osseous structures . Several wedge compression deformities within the upper and mid thoracic spine are unchanged .
    OUTPUT:
    
No acute cardiopulmonary abnormality .