Hadjiev A, Iordanov G
Zentralbl Gynakol. 1979;101(17):1091-6.
The authors investigated changes in blood flow to the lower half of the body of pregnant women in supine and lateral positions toward the end of pregnancy and during uterine contractions. Electroplethysmographic recordings taken to that end from the legs of probands revealed significant decline in blood supply during uterine contractions. The changes recorded were statistically significant. In some cases, no change at all was caused by uterine contraction or positioning. Uterine activity was recorded by intra-uterine pressure registration. With the parturient in lateral position blood flows under review proved to be better than in supine position.
作者们研究了妊娠晚期孕妇仰卧位和侧卧位时以及子宫收缩期间下半身的血流变化。为此，对受试者腿部进行的电阻抗体积描记记录显示，子宫收缩期间血液供应显著下降。记录到的变化具有统计学意义。在某些情况下，子宫收缩或体位改变并未引起任何变化。通过子宫内压力记录来记录子宫活动。结果表明，产妇处于侧卧位时，所观察的血流状况优于仰卧位。
