Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral pleural drains remain in place with decreased right effusion compared to most recent radiograph . Note is made of an anterior and superior position of the left pleural drain . There is no pneumothorax . Median sternotomy wires are again noted . Mild cardiomegaly is unchanged . The pulmonary vasculature is mildly engorged , but there are no signs of pulmonary edema .
    OUTPUT:
    
Decreasing right pleural effusion . Left pleural drain has an anterior , superior position relative to the pleural effusion .