Fig. 3

Present pain intensity（PPI） scores in all patients

No statistically significant differences were noted in the PPI scores between the Group S（＋） and the Group S（－） before, at 1 hour or 1 week after SNRB, but statistically significant differences were noted in the PPI scores between the Group S（＋） and the Group S（－） at 1 day after SNRB （^♯2）. However, the PPI scores were significantly lower at 1 hour, 1 day and 1 week after SNRB than before SNRB in both the Group S（＋） and the Group S（－）（ ^*7,^*8,^*9 and ^*10, ^*11, ^*12）