Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since prior , the patient has had a left thoracentesis with substantial decrease in left pleural effusion . There is no pneumothorax . Small right pleural effusion is unchanged . Bibasilar atelectasis is stable . Pacer leads end in the right atrium and right ventricle . Fracture sternal wire is unchanged .
    OUTPUT:
    
Decreased in left pleural effusion after thoracentesis . No pneumothorax .