Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube , enteric catheter , and bilateral chest tubes x3 are in unchanged position . Median sternotomy wires appear intact . A metallic aortic stent and prosthetic aortic valve are again noted . Mediastinal widening secondary to recent cardiac surgery is unchanged in severity . Overall , aeration of the lungs is similar compared to most recent prior . There is ongoing atelectasis and probable small effusion on the left . No large fluid collection is identified . There is no pneumothorax .
    OUTPUT:
    
No significant change compared to recent prior . No enlarging effusion .