Evaluation of the Serum Markers sFLt1 and PlGF for the Prediction of the Complications of the Placental Vascular Pathologies in the 3rd Quarter of the Pregnancy.

The pre-eclampsia is a frequent pathology, concerning approximately 5 % of the pregnancies. It is a major cause of mortality, mainly in the developing country. His incidence tends to increase in the developed countries. In the absence of adapted coverage, the pre-eclampsia can evolve into severe maternal and\or foetal complications (eclampsia, foetal intra-uterine, dead HELLP syndrome, lung acute oedema, stunting in utero).

The pre-eclampsia is a part of placental vascular pathologies. Several studies showed that these pathologies are due to a defect of trophoblastic invasion, secondary in an imbalance in the balance of factors pro and antiangiogéniques (PlGF, sFlt1).

Studies also demonstrated that, for a patient presenting a placental vascular pathology, the rate of PlGF is decreased and conversely for the rate of sFlt1. Studies show that the duration of the pregnancy, of a patient presenting a placentary vascular pathology, is correlated at the rate of these markers.

There is at present no reliable predictive examination to estimate the arisen of severe complications for a patient presenting a placental vascular pathology. The purpose of the study will to estimate the relevance of the serum markers sFlt1 and PlGF to predict the arisen of severe complications for these patients.