Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Median sternotomy new wires are intact . There is a prosthetic aortic valve . Mild pulmonary vascular congestion has slightly improved since ___ . Trace bilateral pleural effusions are new . There is no pneumothorax . No new focal opacity concerning for pneumonia .
    OUTPUT:
    
Mild pulmonary vascular congestion and interstitial edema slightly improved since ___ . Trace bilateral pleural effusions are new .