The role of progestogen supplementation (dydrogesterone) in the prevention of preeclampsia.

Our goal was determine the effects of dydrogesterone supplementation to reduce the incidence of preeclampsia (PE) in early pregnancy (from 6 to 20 weeks of gestation). A total of 406 pregnant women were involved into the study. The Study group enrolled 169 women, supplemented with dydrogesterone at a dose of 30 mg/d 6-20 weeks of gestation compared with the control group (237 subjects) - without dydrogesterone supplementation. The women were randomized by age, race, obstetrics complications, and their somatic history. The use of dydrogesterone in early pregnancy - before 20 weeks of gestation (at a dose of 30 mg/d) with high-risk factors of PE contributed to a statistically significant reduction in the frequency of this complication (13.1% and 71.4%, p < .001). It was seen, that women who took dydrogesterone developed significantly less such disorders like hypertension (3.2% and 71.2%, p < .001), proteinuria (0.0% and 66.18%, p < .001), fetal growth retardation syndrome (2.2% and 21.58%, p < .001), destroy of uteri-placenta velocity (3.2% and 21.58%, p < .001), preterm labor (8.6% and 53.95%, p < .001). Dydrogesterone supplementation in the first and second period of pregnancy (from 6 to 20 weeks of gestation) significantly reduced the incidence of PE in women with higher risk pregnancy.