笑气吸入性分娩镇痛的临床研究

目的研究笑气吸入性分娩镇痛的疗效和对母儿的影响.方法 116例产妇随机分为观察组和对照组.对照组除不给笑气吸入外,其他产科处理措施与观察组相同.观察比较两组的产痛程度、产程时间、分娩方式、新生儿Apgar评分、产时出血量和产后出血率等.结果观察组的阵痛强度评分明显低于对照组（P＜0.01）,观察组的活跃期和总产程时间短于对照组（P＜0.05）,差异有显著意义.结论笑气吸入性分娩镇痛产程时间短,对母儿无不良影响,是一种理想的分娩镇痛方法,值得产科临床推广使用.

Clinical study on labor analgesia by inhalation of laughing gas

Objective To observe the effects of inhaling laughing gas (nitrous oxide) on labor analgesia and on mother and fetus.Methods 116 parturients were randomly divided into observation group and control group. The control group was given the same treatment as that in observation group except for inhaling laughing gas. The degree of labor pains, the time of delivery process, delivery ways, Apgar scores of neonates, hemorrhage volume and hemorrhage rate after labor were observed and compared. Results The pain degree score in observation group was much less than that of control group ( P < 0.01), the duration of active phase and total delivery process was much shorter than that of control group, the differences were significant between two groups ( P < 0.05) . Conclusion Inhalation of laughing gas for labor analgesia could shorten delivery process, without side effect for mother and fetus, which is an ideal way for labor analgesia and is worth popularizing application in obstetrics.