Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided AICD device is noted with single lead terminating in right ventricle , unchanged . Lung volumes are lower compared to the prior exam . Mild cardiomegaly is present , with the heart size appearing mildly increased compared to the prior study , likely due to differences in inspiratory effort . The aorta remains tortuous but unchanged . The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . The pulmonary vascularity is normal . There are numerous clips again noted within the left upper quadrant of the abdomen . Multilevel degenerative changes are seen within the thoracic spine , mild to moderate in degree .
    OUTPUT:
    
No acute cardiopulmonary abnormality .