Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Right PICC tip terminates in the low SVC . Lung volumes are low . Moderate enlargement of cardiac silhouette persists . There continues to be mild to moderate pulmonary edema , not substantially changed in the interval . Small bilateral pleural effusions are likely unchanged . There is no pneumothorax .
    OUTPUT:
    
Mild to moderate congestive heart failure with small bilateral pleural effusions , not substantially changed in the interval .