Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the previous radiograph , the pre-existing bilateral pleural effusions have minimally increased . There is unchanged evidence of bilateral basal atelectasis and mild cardiomegaly with minimal fluid overload . Unchanged position of right pectoral pacemaker .
    OUTPUT:
    
Slight increase of pre-existing pleural effusions , mild fluid overload .