Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the previous radiograph , a new pacemaker was inserted . The pacemaker generator is located in the left pectoral region . The leads project over the right atrium and right ventricle . No pneumothorax , mild pulmonary edema is present . Small bilateral effusions are seen , better visualized on the lateral than on the frontal image .
    OUTPUT:
    
Status post pacemaker insertion . No pneumothorax , mild pulmonary edema , small bilateral pleural effusions .