Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Left chest wall pacer device is seen with pacer leads extending into the right atrium , right ventricle and coronaries sinus . A prosthetic cardiac valve is noted with midline sternotomy wires . The lungs are clear . A Coronary stent projects over the left heart border . There is no focal consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
No acute intrathoracic process .