Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left pectoral pacemaker is seen with a transvenous lead in the right ventricle . The lungs are clear . Heart size is top normal . Median sternotomy wires are intact and aligned . Right rib deformities are compatible with old rib fractures . No pneumothorax .
    OUTPUT:
    
Left pectoral pacemaker seen with transvenous leads in the right ventricle . No pneumothorax .