Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a left single - lead pacemaker with lead terminating in the right ventricle . The cardiomediastinal and hilar contours are stable . There is no pleural effusion or pneumothorax . There is no pulmonary edema or focal consolidation concerning for pneumonia . Redemonstrated are median sternotomy wires .
    OUTPUT:
    
Uncomplicated placement of a single - lead pacemaker terminating in the right ventricle .