Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy , CABG , and aortic valve replacement . Left - sided dual - chamber pacemaker device is noted with leads terminating in the right atrium and right ventricle , unchanged . Heart size is borderline enlarged . Mediastinal and hilar contours are similar . Pulmonary vasculature is normal . Scarring within the right apex is unchanged . Remainder of the lungs are clear without focal consolidation , pleural effusion or pneumothorax . Small to moderate size hiatal hernia is re - demonstrated . Compression deformities of a vertebral body at the thoracolumbar lumbar junction as well as within the upper lumbar spine are unchanged .
    OUTPUT:
    
No acute cardiopulmonary abnormality .