Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Little interval change since ___ . The left pacemaker seen with transvenous leads in the right atrium and right ventricle . Moderate cardiomegaly is stable . Bibasilar atelectasis is mildly improved , particularly in the retrocardiac region . The lungs are essentially clear . Median sternotomy wires are intact and aligned . No complications related to the procedure , including pneumothorax , mediastinal bleed , or pleural bleed .
    OUTPUT:
    
Left pacemaker seen with transvenous leads in the RA and RV . No post-procedural complications .