Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval removal of a Swan - Ganz catheter , enteric tube and endotracheal tube from ___ . A right basilar chest tube , mediastinal drain and epicardial leads are unchanged . The patient is status post median sternotomy with intact sternal wires . Aortic and mitral valve prostheses are again seen . There is no definitive evidence of pneumothorax . The inspiratory lung volumes remain low , but improved from ___ . Mild residual bibasilar atelectasis is seen , improved from ___ with decreased size of small pleural effusions . There is no pulmonary edema . The cardiomediastinal silhouette is prominent but within normal post-operative range .
    OUTPUT:
    
Decreased bibasilar atelectasis and improved small bilateral pleural effusions from ___ .