Rodesch F, Simon P, Donner C, Jauniaux E
Department of Obstetrics and Gynecology, University Hospital Erasme, Brussels, Belgium.
Obstet Gynecol. 1992 Aug;80(2):283-5.
Placental and endometrial partial pressures of oxygen (PO2) were measured using a polarographic oxygen electrode during the first trimester of pregnancy. Between 8-10 weeks' gestation, placental PO2 levels were significantly lower (P less than .001) than endometrial levels. A significant (P less than .001) increase was observed for placental PO2 values measured at 12-13 weeks compared with those obtained at 8-10 weeks. We suggest that the increase of placental PO2 at the end of the first trimester is related to the establishment of continuous maternal blood flow in the intervillous space.
在妊娠早期，使用极谱氧电极测量胎盘和子宫内膜的氧分压（PO2）。在妊娠8 - 10周时，胎盘PO2水平显著低于子宫内膜水平（P < 0.001）。与8 - 10周时测得的胎盘PO2值相比，在12 - 13周时测得的值有显著增加（P < 0.001）。我们认为，妊娠早期末胎盘PO2的升高与绒毛间隙中持续母体血流的建立有关。
