Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top - normal , decreased from prior . Postoperative cardiomediastinal silhouette and hilar contours are unremarkable . Lungs are clear . No pleural effusion or pneumothorax . Right internal jugular approach central venous catheter terminates at the cavoatrial junction . Device type projects over the lower left chest wall with pre sternal electrode unchanged in position .
    OUTPUT:
    
No acute cardiopulmonary abnormality .