[Evaluation of usefulness of enzymatically determining estriol in urine and placental lactogen in serum of pregnant women with threatened preterm labor].
In 40 pregnant women in the pregnancy period from 16 to 28 weeks with threatened preterm labor diagnosed after clinical investigations and recording of cardiotocogram the values of oestriol in 24-hour urine and placental lactogen in the serum was measured. These values were compared to analogous determinations in a group 40 healthy women with similar duration of pregnancy. Statistically significantly lower values of placental lactogen were found in the serum of pregnant women with threatened preterm labor. The values of oestriol in 24-hour urine were also lower, but the differences were not statistically significant. In conclusion the authors state that enzymatically determined placental lactogen in the serum is a useful method of monitoring of pregnancy with threatened preterm labor. Determination of oestriol was without any greater diagnostic significance in the case of threatened preterm labor.