Clapp J F
Am J Obstet Gynecol. 1978 Oct 15;132(4):410-3. doi: 10.1016/0002-9378(78)90776-7.
Control measurements of uterine blood flow (N = 110) or umbilical blood flow (N = 84) and the oxygen content difference across the circulation in question were analyzed to assess the effect of flow rate, measured by the diffusion equilibrium technique, on the oxygen uptake of either the uteroplacental-fetal tissue mass or the fetus alone. Although the rate of uterine blood flow varied widely (110 to 418 ml. per kilogram per minute, the rate of uterine oxygen uptake did not change significantly at low or high rates of flow. Likewise, the rate of umbilical blood flow varied widely (154 to 444 ml. per kilogram per minute) without a significant change in fetal oxygen uptake at the extremes of flow. In both circulations this was due to the existence of a reciprocal relationship between flow rate and deltaO2.
对子宫血流量（N = 110）或脐血流量（N = 84）的对照测量以及所讨论循环中氧含量差进行了分析，以评估通过扩散平衡技术测量的流速对子宫胎盘 - 胎儿组织团块或单独胎儿的氧摄取的影响。尽管子宫血流量变化很大（每分钟每千克110至418毫升），但在低流速或高流速时子宫氧摄取率没有显著变化。同样，脐血流量变化很大（每分钟每千克154至444毫升），在流速极端情况下胎儿氧摄取也没有显著变化。在这两种循环中，这是由于流速与ΔO2之间存在相互关系。
