Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior study , the patient has been extubated , and NG tube has been removed . Swan - Ganz projects around the pulmonary valve . Chest tubes are in unchanged position , and there is no pneumothorax . Bilateral pleural effusion is minimal with a small pleural loculation in small fissure that has slightly increased in size . Bibasilar atelectasis is minimal and improved in left lower lobe . Mediastinal and cardiac contour mild enlargement is unchanged .
    OUTPUT:
    
Patient had recent redo sternotomy for AVR . There is no pneumothorax .