Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left chest wall pacing device is seen with leads terminating in stable positions . Mitral valve replacement is again noted . The heart size is mildly enlarged . Mediastinal and hilar contours are stable . There is no pleural effusion or pneumothorax . Lungs are well - expanded without focal consolidation concerning for pneumonia . There is no pulmonary edema . The upper abdomen is unremarkable . Degenerative changes are seen throughout the thoracic spine . Median sternotomy wires again noted .
    OUTPUT:
    
No acute cardiopulmonary process .