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目的 探讨经脐静脉推注催产素是否可防止胎盘嵌顿于子宫颈口。方法 把第三产程超过6分钟的产妇120人随机分成A、B、C三组,A组为经脐静脉推注催产素,B组为经肘静脉推注催产素,C组为臀部肌肉注射催产素。观察每组胎盘嵌顿于子宫口的例数,胎盘娩出时间及胎盘粘连行徒手取胎盘的情况。结果 A组中无一例胎盘嵌顿于宫口者,B组与C组中各有7例、6例胎盘嵌顿于宫口,从给催产素到胎盘完整娩出的时间,A组明显短于B、C组(P<0.01)。结论 经脐静脉推注催产素可防止胎盘嵌顿于宫口,加速胎盘娩出,缩短第三产程,但不减少胎盘粘连宫壁的发生率。
Objective To investigate if oxytocin is administered via the umbilical vein to prevent the incarceration of the placenta in the cervix. Methods A total of 120 maternal women who had been in the third stage of labor for more than 6 minutes were randomly divided into A, B and C groups. A group received oxytocin via umbilical vein, B group received oxytocin via elbow vein, C group received intramuscular injection Oxytocin. Observe the number of placenta incarcerated in the uterus in each group of cases, the time of delivery of the placenta and placenta accreta walking placenta cases by hand. Results None of group A had placenta accreta in uterine cervix. There were 7 cases in group B and group C, and 6 cases were implanted in cervix. From the time of oxytocin to placenta intact, group A was obviously shorter than B, C group (P <0.01). Conclusion Intra-umbilical instillation of oxytocin prevents placental incarceration in the cervix, accelerates the delivery of the placenta and shortens the third stage of labor, but does not reduce the incidence of placenta adhesion.