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迄今无可靠方法测定第三产程期间的胎盘剥离和排出。此时期常会发生潜在危险如大出血、胎盘粘连、胎盘箝闭、子宫内翻和宫内感染。因此,精确测定胎盘剥离时间,使它安全地排出非常重要。本文作者以胎盘血液动力学为基础设计了判断胎盘剥离和排出的新方法。在新生儿娩出后立即夹住脐带任意部。用大拇指和中、食指夹住胎盘侧的脐带,将约15cm长的脐带内的血液向胎盘内挤压,慢慢松开压在脐带上的手指,可感到脐带内血液回流压力的存在或缺乏,由此可估计胎盘剥离状态。用此法于过去十年间在StLuke国际医院观察了2,118例分娩。测定结果显示本法与连续超声图检
Hitherto no reliable method for the determination of placental detachment and discharge during the third stage of labor. Potential dangers such as bleeding, placental adhesion, placental clamping, intrauterine infection and intrauterine infection often occur during this period. Therefore, it is very important to accurately measure the placental detachment time and discharge it safely. Based on the placental hemodynamics, the authors designed a new method for determining placental exfoliation and excretion. Clamp any part of the umbilical cord immediately after delivery of the newborn. With the thumb and the index finger grip the umbilical cord on the placenta side of the umbilical cord blood about 15cm long squeeze into the placenta and slowly release the pressure on the umbilical cord fingers can feel the presence of umbilical cord blood reflux pressure or Lack of, which can be estimated placental detachment status. Using this method, 2,118 births were observed at St Luke International Hospital in the past decade. Measurement results show that this method and continuous ultrasound imaging