Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no pleural effusion , pneumothorax or focal airspace consolidation . The heart size is top normal . The mediastinal contours are normal . A left side pacemaker is intact with its wire terminating in the right ventricle . Its location appears unchanged from approximately 11 days prior .
    OUTPUT:
    
Unchanged lead position .