笑气镇痛在分娩中的应用

目的探讨笑气吸入用于初产妇在第一产程中镇痛的有效性和对母儿的影响。方法将300例单胎头位，足月初产妇作为观察对象。其中研究组150例，给予吸入50％笑气与50％氧气的混合气体；对照组150例，间断吸入氧气。观察2组产妇疼痛的缓解程度、产程时间、分娩方式、产时出血量、新生儿出生情况、笑气吸入的副反应。结果研究组分娩镇痛的有效率为96．6％，明显高于对照组87％（P〈0001）；研究组割官产率6％，明显低于对照组14％，差异有显著性（P〈0．05）；而2组总产程时间、产后出血羊水粪染比较、新生儿Apgar评分比较，而两组差异均无显著性（P〉O．05）。结论笑气镇痛能安全、有效、简便地缓解分娩疼痛，降低剖宫产率，对母儿无不良影响。

Clinical Observation on Nitrogen Monoxide for Delivery Analgesia

Objective Expiore inhaling nitrous oxide for primipara ananlgesia in the first stage of labor , the effectiveness and impact of the mother and child. Method 300patients with single cephalic , term maternal as the observed object. 150case of the study group given inhaled nitrous 50 % oxide and 50 % oxygen gas mixture; the control group of 150cases of intermittent inhaled oxygen . mitigation of observed two sets mater- nal pain , labor duration, mode of delivery , when the amount of bleeding , birth situation, nitrous oxide inhalation side effects~ The result： ef- fective rate for the analgesia research group 96.6%, Significantly higher than the control group 8.7% （ P ~0. 001 ）. Results Group the rate of caesarean 6% Significantly lower than the control group 14%, Significance of difference （ P %0. 05 And both have no significant group differences （ P〉0. 05））. Conclusion Nitrous oxide analgesia to relieve childbirth pain can be safe, effective, convenient, and reduce the rate of caesarean, on pregnant women and fetus without adverse effects..