Farquharson R G, Dyas J, Pierrepoint C G
Br J Obstet Gynaecol. 1985 Oct;92(10):1040-3. doi: 10.1111/j.1471-0528.1985.tb03000.x.
Umbilical cord artery and vein cortisol levels and cord artery pH were measured in 32 breech deliveries. There was no detectable increase in fetal cortisol output in relation to fetal acidosis. It is considered that elevation of fetal cortisol levels is caused by maternal transfer of this hormone transplacentally during stressful delivery rather than by enhanced fetal adrenal activity.
对32例臀位分娩的胎儿进行了脐动脉和静脉皮质醇水平以及脐动脉pH值的测定。未发现胎儿皮质醇输出量随胎儿酸中毒有可检测到的增加。据认为,胎儿皮质醇水平升高是由于在分娩应激期间母体通过胎盘转运该激素所致,而非胎儿肾上腺活动增强。