Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is a left axillary pacermaker defibrillator with leads terminating in the right atrium and the right ventricle as expected . Moderate cardiomegaly and post-CABG changes are again seen . The mediastinal and hilar contours are unremarkable . There is no pulmonary edema or focal consolidation concerning for pneumonia . There is no pneumothorax .
    OUTPUT:
    
Unchanged pacemaker position . No acute abnormality .