Conclusions:Two interspaces epidural block has a less effection on the breath of laparoscopic surgery in lower abdomen and pelvic cavity,so it has more advantanges than one interspace block.

• 结论：腹腔镜下行下腹部、盆腔手术时，两点连续硬膜外阻滞麻醉对呼吸功能的影响小，与单点连续硬膜外阻滞麻醉相比更值得临床应用。