Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are compared to previous exam from earlier the same day . Left chest wall pacing device is seen with leads in the right ventricular apex and right atrium . Where seen the ribs demonstrate no displaced fracture . Lungs remain clear , there is no pneumothorax . Cardiomediastinal silhouette is stable . No acute osseous abnormality is detected . Right upper quadrant clips suggest prior cholecystectomy .
    OUTPUT:
    
No acute cardiopulmonary process . No visualized displaced rib fracture .