Circulating angiogenic factors and risk of adverse maternal and perinatal outcomes in twin pregnancies with suspected preeclampsia

摘要

To evaluate whether angiogenic factor levels correlate with preeclampsia-related adverse maternal and perinatal outcomes in women with twin pregnancy, we studied 79 women with suspected preeclampsia in the 3^rd trimester. Anti-angiogenic soluble fms-like tyrosine kinase 1 (sFlt1) and pro-angiogenic placental growth factor (PlGF) were measured at presentation on an automated platform. An adverse outcome was defined as hemolysis elevated liver enzymes and low platelets syndrome; disseminated intravascular coagulation; abruption; pulmonary edema; cerebral hemorrhage; maternal, fetal and neonatal death; eclampsia; acute renal failure; small for gestational age; and indicated delivery. All outcomes were ascertained 2 weeks after initial evaluation. Comparing the 52 (65.8%) women who experienced an adverse outcome to the 27 (34.2%) women without an adverse outcome, the median sFlt1 was elevated [11461.5 pg/ml (8794.0–14847.5) versus 7495.0 pg/ml (3498.0–10482.0, P=0.0004], PlGF was reduced [162.5 pg/ml (98.0–226.5) versus 224.0 pg/ml (156.0–449.0), P=0.005] and sFlt1/PlGF ratio was elevated [74.2 (43.5–110.5) versus 36.2 (7.1–71.3), P=0.0005]. Among those presenting <34 weeks (n=40), the difference in sFlt1/PlGF ratio was more striking [97.7 (76.6–178.1) versus 31.7 (6.5–48.7); P=0.001]. Addition of sFlt1/PlGF to the highest systolic blood pressure and proteinuria improved prediction of adverse outcomes. We conclude that in women with twin pregnancy and suspected preeclampsia, the sFlt1/PlGF ratio at the time of initial evaluation is associated with subsequent adverse maternal and perinatal outcomes. These findings are similar to singleton pregnancies and may implicate common pathogenic pathways.