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著者对21例自愿因滞产、宫颈坚韧的孕足月产妇,于临产后减少疼痛行硬膜外麻醉(简称硬麻),以分娩胎心图描记监视,观察麻醉前后胎心率(FHR)的变化。硬麻部位为L_(3-4)或L_(4-5),留置导管法,麻药为0.5%bupivacaine,试验量为2～3 ml,于20分钟后确定安全注入5～7 ml,以后根据疼痛出现,每90～120分钟再注入5～7 ml。麻醉开始时期是判断为分娩进展期,并不以宫口开大程度为指标。硬麻前后使用催产素,使每2～3分钟有一次宫缩。静滴10%麦芽糖。催产素量为0.01IU/分,有时混用前列腺素8～12μg/分。著者试从硬麻前后的胎心率基线(指每分钟的次数,在10分钟期间除去加速、减速后的平坦部的平均值)、基线变异性包括振幅及频率,是指平坦
The author of 21 cases of voluntary pregnancy due to prolonged labor, cervical full-term pregnant women, pain relief after labor epidural anesthesia (referred to as hard anesthesia), to observe the delivery fetal heart rate mapping observation of fetal heart rate before and after anesthesia (FHR) The change. Hardnest site L_ (3-4) or L_ (4-5), indwelling catheter method, anesthetic 0.5% bupivacaine, the test volume of 2 ~ 3 ml, after 20 minutes to determine the safe injection of 5 ~ 7 ml, after the Pain, every 90 to 120 minutes and then injected 5 ~ 7 ml. The beginning of anesthesia is judged as the progress of childbirth, not to open a large degree of the cervix as an indicator. Before and after the use of oxytocin hard, so every 2 to 3 minutes have a contraction. Intravenous infusion of 10% maltose. Oxytocin is 0.01IU / min, sometimes mixed with prostaglandin 8 ~ 12μg / min. The authors tested baseline fetal heart rate before and after hard anesthesia (referring to the number of minutes, excluding acceleration during 10 minutes, after deceleration of the flat average), baseline variability, including amplitude and frequency, refers to the flat