Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiographs on ___ , there is no significant change . A left chest wall pacemaker is stable in position , with leads terminating in the right atrium , right ventricle and His bundle . The right - sided PICC line terminates in the mid SVC . There is no pneumothorax . The lungs are clear without focal consolidation or pleural effusion . The cardiac and mediastinal silhouettes are unchanged . Median sternotomy wires are stable in position . Patient is status post AVR .
    OUTPUT:
    
Appropriately positioned pacemaker , with leads terminating in the right atrium , right ventricle and His bundle . No pneumothorax .