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目的观察布比卡因硬膜外腔阻滞在分娩镇痛中的止痛效果及其对产妇、胎儿的影响。方法在第1产程进入活跃期，宫口开至3cm时，于L2-3行硬膜外腔穿刺，注入0．25％布比卡因溶液6mL，视疼痛程度及产程长短适时追加给药。结果46例均于给药后2－5min达到Ⅰ～Ⅱ级。疼痛程度明显减轻。结论布比卡因硬膜外阻滞镇痛分娩可明显减轻产妇分娩时的疼痛。缩短第1产程活跃期及第2产程，对产妇及胎儿无不良影响。产妇安静合作、无痛苦，从而提高了分娩质量。
Objective To observe the analgesic effect of bupivacaine epidural block in labor analgesia and its effect on maternal and fetal. Methods In the first stage of labor into the active phase, the cervix open to 3cm, L2-3 line of epidural puncture, 0.25% bupivacaine solution into 6mL, depending on the degree of pain and the length of labor additional timely delivery. Results All the 46 cases reached Grade Ⅰ ~ Ⅱ 2-5min after administration. Significantly reduce the degree of pain. Conclusion Bupivacaine epidural block analgesia childbirth can significantly reduce the pain during childbirth. Shorten the first stage of labor and the second stage of active labor, no adverse effects on mothers and fetuses. Maternal quiet cooperation, no pain, thereby enhancing the quality of childbirth.