Foley M E, Clayton J K, McNicol G P
Br J Obstet Gynaecol. 1977 Feb;84(2):81-7. doi: 10.1111/j.1471-0528.1977.tb12532.x.
Studies of the haemostatic mechanism were made on paired samples from the umbilical vein and artery and from a maternal peripheral vein immediately following delivery in 80 healthy patients with uncomplicated pregnancies. Neonatal blood showed a significant decrease in clotting 'activity' and platelet function, and a significant increase in fibrinolytic activity. The umbilical vein, in in comparison to the umbilical artery, showed increased clotting 'activity' increased platelet function and decreased fibrinolytic activity. The possible adverse influence of the placenta on haemostasis in the fetus and newborn is discussed.
对80例妊娠结局正常的健康产妇在分娩后立即采集的脐静脉血、脐动脉血和母体外周静脉血配对样本进行了止血机制研究。新生儿血液的凝血“活性”和血小板功能显著降低，而纤溶活性显著增加。与脐动脉相比，脐静脉的凝血“活性”增加、血小板功能增强、纤溶活性降低。本文讨论了胎盘对胎儿和新生儿止血可能产生的不利影响。
