氧化亚氮吸入用于产妇分娩镇痛及其对新生儿的影响

目的 寻求一种简便易行、安全、有铲的分娩镇高痛方法。方法 将60例产程进入活跃期的产妇随机分为观察组和对照组各30例。观察组在第一产程宫口开大3cm以上、产痛剧烈时吸入氧化亚氮，对照组剧痛时予注意力分散的心理安慰，结果 观察组镇痛优良率76.67%，有效率达93.33%。两组疼痛程并比较，差异有极显著性意义（P＜0.01）。两组新生儿脐静脉、脉动脉血气分析各项指标比较，差异无显著性意义（均P＞0.05）。结论 氧化亚氮吸入用于产妇分娩镇痛效果满意，对于宫胎盘的血流无明显影响，不干扰胎儿的生理代谢及中枢神经系统功能。

Nitrous Oxide Inhalation for Expulsive Analgesia in the Parturients and Its Effe cts on the Newborns

Objective To search for a simple, easy, safe and effective method for expulsive analgesia. Methods Sixty parturients in the active birth process were randomly divided into observation group and control group. The parturients in the first stage of labor with the orifice of uterus opening over 3 cm and expulsive pain inhaled nitrous oxide, while those in the control group received routine labor. Results The excellent rate and effective rate of analgesia in the observation group was 76 67 % and 93 33 %, respectively. There was very significant difference in severity of pain between the two groups ( P <0 01). There was no significant difference in the blood gas analysis of umbilical vein and artery of the newborns between the two groups ( P >0 05). Conclusion Nitrous oxide inhalation for expulsive analgesia in the parturients had no obvious influence on the circulation. Nitrous oxide had satisfactory analgesia effects.