Erkkola R, Kero P, Kanto J, Korvenranta H, Nanto V, Peltonen T
Am J Perinatol. 1984 Jan;1(2):165-9. doi: 10.1055/s-2007-999995.
Delay in cord clamping after vaginal delivery increases the blood volume of the newborn. Similar effects have also been observed in cesarean section births. Other effects of delayed cord clamping in cesarean section have not been investigated. In a group of nineteen healthy mothers having elective cesarean sections the cord clamping time was increased from 0 minutes to 1.5 and 3 minutes. Significantly lowered PO2 and pH and elevated plasma lactate levels were observed in infants with 3 minutes' delay when compared with the early clamping group. We conclude that, when healthy mature newborns are considered, early clamping of umbilical cord in cesarean section with general anesthesia is preferable to late clamping.
阴道分娩后延迟脐带结扎可增加新生儿血容量。剖宫产分娩中也观察到了类似效果。剖宫产中延迟脐带结扎的其他影响尚未得到研究。在一组19名择期剖宫产的健康母亲中，脐带结扎时间从0分钟延长至1.5分钟和3分钟。与早期结扎组相比，延迟3分钟结扎的婴儿的动脉血氧分压（PO2）和pH值显著降低，血浆乳酸水平升高。我们得出结论，对于健康成熟的新生儿，全身麻醉下剖宫产时早期结扎脐带优于延迟结扎。
