Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy , mitral valve repair , and CABG . Epicardial leads are also seen . The heart size is mildly enlarged , unchanged . Mediastinal and hilar contours are normal . There is minimal atherosclerotic calcification of the aortic knob . Lungs are clear and the pulmonary vasculature is normal . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .