Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The aortic valve replacement appears intact and overall unchanged in position . Median sternotomy wires and left - sided pacemaker device also appear intact and unchanged with tip ending in the right ventricle . Surgical clips are again noted in the left hilar region . Stable appearance of the cardiomediastinal silhouette . Mild pulmonary vascular congestion persists . No pleural effusion . No pneumothorax . No focal consolidation to suggest pneumonia .
    OUTPUT:
    
Stable mild cardiomegaly and pulmonary vascular congestion .