氧化亚氮用于分娩镇痛的临床观察

Use of nitrous oxide in analgesic labor

目的 :探讨氧化亚氮吸入分娩镇痛效果和对母婴的影响。方法 :将 4 2 9例的产妇随机分为观察组和对照组。对照组除不给氧化亚氮吸入外 ,其它产科处理措施与观察组相同。观察产痛程度、产程时间、分娩方式、产后出血量和产后出血率、胎儿窘迫、新生儿窒息情况。结果 :两组分娩镇痛效果、产程活跃期、第二产程时间和分娩方式比较差异有显著性 (P <0 .0 1～P<0 .0 0 5 )。两组产后出血率、胎儿窘迫、新生儿窒息等差异均无显著性 (P >0 .0 5 )。结论 :氧化亚氮吸入分娩镇痛产程时间短、剖宫产率降低 ,对母婴均无不良影响 ,是安全、有效、简便的无痛分娩方式。

Objective:To study the effect of nitrous oxide on labor pain relief and its influerce on mother and fetus.Methods:Four hundred and twenty nine pregnant women were randomly divided into the observation group and the control group.The control group was given the same therapy as the observation group except nitrous oxide.The degree of labor pain,the labor course,the mode of delivery,bleeding voluma,rate of postpartum hemorrhage,fetal distress and neonatal asphyxia were observed in the two groups respectively.Results:The two groups differed significantly in analgesia effect,the duration of activity,second delivery process and the mode of delivery( P <0.01 to P <0.005),but there were no significant differences in the incidence of postpartum hemorrhage,fetal distress or neonatal asphyxia( P >0.05).Conclusions:Analgesic labor with nitrous oxide produces a shorter delivery process,decreases the rate of cesarean section and shows no side effects on both mother and fetus.It has the advantages of safety,efficacy and simplicity.