Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy , CABG , aortic and mitral valve replacements . Mild cardiomegaly is unchanged . The mediastinal and hilar contours are similar with mild pulmonary vascular congestion , likely chronic . Minimal atelectasis is seen in the lung bases without focal consolidation . Trace bilateral pleural effusions are noted . There is no pneumothorax . No acute osseous abnormality is seen .
    OUTPUT:
    
Unchanged mild cardiomegaly with mild pulmonary vascular congestion . Trace bilateral pleural effusions . No focal consolidation .