Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Left - sided AICD device is noted with leads terminating in the right atrium and right ventricle , unchanged . Heart size is mildly enlarged but similar . Mediastinal and hilar contours are unchanged . Pulmonary vasculature is not engorged . Streaky atelectasis is noted in the lung bases without focal consolidation . No pleural effusion or pneumothorax is present . Moderate degenerative changes are re - demonstrated in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .