Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-erect chest radiograph ___ at 07 :41 is submitted .
    OUTPUT:
    
Interval exchange with placement of a dual lumen left internal jugular central line which has its most distal tip in the distal SVC . Right subclavian PICC line unchanged in position . Tracheostomy tube in satisfactory position . Status post median sternotomy for CABG with stable postoperative cardiac and mediastinal contours . Small layering bilateral effusions with associated left basilar atelectasis . Interval appearance of mild interstitial edema . No pneumothorax .