Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Dual lead right - sided pacemaker is stable in position , with leads extending to the expected positions of the right atrium and right ventricle . The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . The patient is status post median sternotomy .
    OUTPUT:
    
No acute cardiopulmonary process .