Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased heart size , stable . Pulmonary vascularity has mildly improved . Mild bilateral pleural effusions , mildly improved on the left , mildly worsened on the right . Mildly improved bibasilar opacities , likely improving atelectasis . T AVR . No pneumothorax . Degenerative changes thoracolumbar spine , kyphosis . Esophageal hiatal hernia .
    OUTPUT:
    
Mild pleural effusions . Improved bibasilar opacities .