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目的研究硬膜外腔持续输注0．125%布比卡因对分娩过程和剖宫产发生率的影响。方法326例ASAⅠ-Ⅱ级自然分娩者,镇痛组156例,非镇痛组170例(对照组)。镇痛组产程开始后行L_(1-2)或L_(2-3)硬膜外腔穿刺置管,经导管注入0．25%布比卡因6ml,疼痛减轻并出现感觉减退平面后,用Grasebey9300泵持续输注0．125%布比卡因,速度5ml/h,分别观察镇痛组和非镇痛组的产程变化及自然分娩改为剖宫产的几率。结果硬膜外持续输注0．125%布比卡因对于分娩过程有明显的影响,催产素使用率增加,但并不增加自然分娩改为剖宫产的风险。
Objective To study the effects of epidural continuous infusion of 0.125% bupivacaine on the delivery process and the incidence of cesarean section. Methods 326 cases of spontaneous ASA Ⅰ-Ⅱ delivery, analgesic group of 156 cases, 170 cases of non-analgesic group (control group). After the onset of labor analgesia group L_ (1-2) or L_ (2-3) epidural catheter, catheterized 0.25% bupivacaine 6ml, pain relief and sensory loss flat, Sustained infusion of 0.125% bupivacaine with a Grasebey 9300 pump at a speed of 5 ml / h was used to observe the change of labor course and the chance of spontaneous delivery to cesarean section in the analgesic and non-analgesic groups, respectively. Results Continuous epidural infusion of 0.125% bupivacaine had a significant effect on childbirth with increased oxytocin use but did not increase the risk of spontaneous delivery to caesarean section.