Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A transesophageal tube terminates in the stomach . Right PICC terminates in low SVC . Previously seen Left subclavian venous catheter has been removed . Moderate to large bilateral pleural effusions and substantial bibasilar atelectasis are stable . Cardiomediastinal silhouette is obscured by pleural effusions but grossly appear stable . Calcification is heavy at the aortic arch .
    OUTPUT:
    
Moderate to large bilateral pleural effusions and substantial bibasilar atelectasis are persistent since ___ .