Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . The pacemaker with transvenous leads end in the appropriate positions in the right atrium and right ventricle . Sternotomy wires and mediastinal clips are stable . The cardiac , mediastinal , and hilar contours are normal . The lungs are clear . No pleural effusion or pneumothorax .
    OUTPUT:
    
Transvenous pacemaker leads in appropriate position . No pneumothorax , mediastinal widening , or evidence of hemothorax .