Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrate a left chest cardiac device , its leads which appear intact and terminate in the anticipated location of the right atrium and ventricle . Patient is status post CABG . The most inferior median sternotomy wire appears discontinuous as does the second to most inferior sternotomy wire anteriorly . Surgical clips project over the left heart border and left mid axillary chest superiorly . There is no pneumothorax . There is no pleural effusion . No evidence of pulmonary edema . Cardiomediastinal and hilar contours are within normal limits . Bibasilar atelectasis , left greater than right is mild . Images of the upper abdomen are grossly normal .
    OUTPUT:
    
No acute intrathoracic abnormality . Inferior median sternotomy wires appear discontinuous , question integrity . Bibasilar atelectasis , left greater than right .