IMPRESSION:
1.  Two left-sided chest tubes and a left subclavian PICC line remain in
 place.  The patient is status post median sternotomy for CABG and mitral valve
 replacement.  Stable overall enlarged cardiac and mediastinal contours.  There
 continues to be patchy opacity at the left base likely reflecting a
 compressive atelectasis, although pneumonia or aspiration cannot be entirely
 excluded.  There is a lucency overlying the left lower lateral chest wall
 consistent with subcutaneous emphysema.  Left lateral pleural thickening is
 again noted.  No pneumothorax.  Overall,aeration in the left lung has improved
 suggesting resolving edema.