Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A vagal nerve stimulator is implanted in the left anterior chest wall with leads leading to the left thoracic inlet . There is no evidence of lead disconnection or breakage . Heart size is normal . Cardiomediastinal silhouette and hilar contours are normal . Lungs are clear . There is no pleural effusion or pneumothorax . The bony structures are grossly unremarkable .
    OUTPUT:
    
Vagal nerve stimulator implanted in the left anterior chest wall without breaks or disconnections of the leads .