Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left subclavian central venous catheter ends in the lower SVC . Bilateral large pleural effusions and associated compressive atelectasis of both lung bases have slightly worsened since the prior study . The remainder of the aerated lung appears unremarkable except for mild pulmonary vascular congestion . The assessment of the cardiomediastinal silhouette is limited due to the large effusions . Multiple intact sternotomy wires are present .
    OUTPUT:
    
Mild increase in the large bilateral effusions and compressive bibasilar atelectasis .