Outcomes of Placental Abruption Depending on Severity of Pre-Eclampsia: A Multicentre Cohort Observational Retrospective Study

Aim. Placental abruption is a severe complication of pregnancy, which is often accompanied by pre-eclampsia and early delivery. Here we aimed to study maternal and neonatal outcomes in patients with placental abruption depending on the severity of pre-eclampsia. Materials and Methods. The study included 509 patients with placental abruption and pre-eclampsia from 22 medical centers in 16 regions of the Russian Federation, which were divided into two groups: patients with placental abruption and severe pre-eclampsia (n = 369) and patients with placental abruption and moderate pre-eclampsia (n = 140). Results. Regardless of the severity of pre-eclampsia, average term of placental abruption was 34 weeks of pregnancy. Among the adverse maternal outcomes in patients with placental abruption and severe pre-eclampsia were coagulopathy (OR = 5.01; 95% CI = 1.17–21.46) and near miss proportion (OR = 2.95; 95% CI =1.22 –7.08) which were significantly more common as compared to a moderate pre-eclampsia. Neonatal outcomes were accompanied by a high perinatal mortality (12.8%) and neonatal morbidity due to a high prevalence of premature birth (65%), asphyxia (64%), and small for gestational age (40%). Groups with severe and moderate pre-eclampsia had no statistically significant differences in neonatal outcomes, excepting congenital malformations which were found less frequently (OR = 0.32; 95% CI 0.13–0.79) in severe pre-eclampsia. Conclusion. Severity of pre-eclampsia did not affect neonatal outcomes in women with placental abruption. Maternal outcomes were significantly worse in patients with severe pre-eclampsia in comparison with those with moderate pre-eclampsia.