Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral PleurX catheters are again identified . Left - sided effusion has decreased in size but is still present . Elevated right hemidiaphragm is similar compared to prior . Superiorly , the lungs are clear . The cardiomediastinal silhouette is within normal limits . Left chest wall dual lead pacing device is again noted .
    OUTPUT:
    
Interval decrease in size of left - sided pleural effusion . Bilateral PleurX catheters again seen .