Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval removal of the ETT tube , NG tube , Swan - Ganz catheter , and mediastinal drains . Expected increased bilateral mild atelectasis and lower lung volumes status - post extubation . Mild pulmonary vascular congestion is also within the expected range after extubation . Stable moderate cardiomegaly . Stable mediastinal contours and appearance of the hila . No focal consolidation , pulmonary edema , pneumothorax , or pleural effusion . Median sternotomy wires appear intact and aligned . The right IJ introductory catheter sheath appears in place .
    OUTPUT:
    
Expected post-extubation bibasilar atelectasis and mild pulmonary vascular congestion since ___ .