氧化亚氮吸入用于分娩镇痛34例观察

Application of nitrous oxide in labor analgesia

对３４例产妇用氧化亚氮吸入进行分娩镇痛观察，并与同期分娩的５０例产妇进行比较。结果表明，镇痛效果满意，无痛及轻度疼痛者占９１．１８％，且不影响产妇呼吸及循环功能，产妇在吸入过程中始终保持清醒状态，不影响子宫收缩，不增加产后出血量，对产程、新生儿Ａｐｇａｒ评分、产时并发症发生率等均无影响。提示：氧化亚氮是产科分娩镇痛较理想的药物之一，但使用过程中要注意严格控制吸入浓度。

Labor analgesia with nitrous oxide was studied in34 parturients, and another 50 women taking no drugas the control group. The analgesic effect was satisfac-tory. By Mulleetr's pain in labor score, 91.18%women had score of 0～1, and their respiratory andcirculatory functions were not affected. Duringinhalational analgesia the partunents remained con-scious. Uterine contraction, progress of labor andneonatal Apgar score were not interferred, andpostpartum bleeding was not increased. There was nocomplications in the treatment group. This study sug-gests that nitrous oxide with enough oxygen inhalationis one of the good drug for obstetric analgesia, but itsconcentration must be strictly controlled.