Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is after median sternotomy and sternal sutures are intact . Bibasilar atelectasis and small bilateral pleural effusions left side more than right are persisting with changes in the left lung base worsened since ___ . Upper lungs are clear . Mild to moderately enlarged heart size , mediastinal and hilar contours have been stable . There is no pulmonary edema .
    OUTPUT:
    
Bibasal atelectasis and small bilateral pleural effusions , left more than right , has worsened since ___ .