Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Dual lead defibrillator in good position . Interval improvement of the interstitial pulmonary edema . Persistent moderate pleural effusions with basal opacities have also slightly improved . No pneumothorax . The cardiac silhouette remains mildly enlarged . .
    OUTPUT:
    
Interval improvement of the interstitial pulmonary edema . Moderate bilateral pleural effusions persist .