Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs were obtained . A left chest dual - chamber pacemaker has leads terminating in the right atrium and right ventricle . There is no pneumothorax . Lungs are fully expanded and clear . The heart size is moderately enlarged . Mediastinal and hilar contours are stable . There is no pleural effusion .
    OUTPUT:
    
Satisfactory position of pacemaker leads in the right atrium and right ventricle without complications .