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目的:通过30例产妇应用连续硬膜外腔注药行分娩镇痛,观察镇痛效果及对宫缩、产程、宫口开大、儿头下降的影响,并行母血、脐血的血气分析。方法:在放置硬膜外腔管后产妇连续接受:(1)10 ml 0.125％布匹卡因,(2)10 ml 0.2％罗哌卡因,二者任选其一直至分娩。结果:注入初始量镇痛药后子宫收缩轻度抑制,持续10～15分恢复。此后在连续输注及第二产程中无宫缩抑制现象。结论:低浓度硬膜外腔阻滞麻醉,可缩短产程、使儿头下降及宫口扩张速率加快,降低产妇体力消耗,缓解胎儿循环系统,减少新生儿酸中毒发生率。
OBJECTIVE: To observe the analgesic effects and the effects on the contractions, labor, cervicovaginal opening, and head drop in 30 maternal women who received continuous epidural injection. The blood gas analysis of maternal and umbilical blood . Methods: The women received consecutive deliveries of epidural tubes: (1) 10 ml of 0.125% clothocaine, (2) 10 ml of 0.2% ropivacaine, both of which are optionally delivered until delivery. Results: The initial amount of analgesic injection of uterine contraction mild inhibition, sustained 10 to 15 minutes recovery. Since then there is no contractions in the continuous infusion and the second stage of labor. Conclusion: Anesthesia in low concentration epidural block can shorten the labor process, speed up the decline of pediatric head and cervix, reduce maternal physical exertion, relieve fetal circulatory system and reduce the incidence of neonatal acidosis.