Objective: To study the cerebral artery blood flow indices in newborns by natural and Cesarean section delivery.
目的：探讨自然分娩与剖宫产新生儿脑动脉阻力指标的差别。
Methods 24 placentas were obtained from healthy full term parturients within 5 min after vaginal or cesarean section delivery. The dual perfused human placental models were made.
方法获取刚娩出的健康胎盘24个，制备离体人胎盘单绒毛叶双侧灌注模型。
The ratio of cesarean section birth to dystocia delivery increased year by year, with reverse trend of forceps delivery.
剖宫产占难产分娩的比例逐年增高，同期产钳助产占难产分娩的比例逐年下降；
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