Pre-eclampsia (PE) is a worldwide public health problem, a disease of placental origin affecting the maternal endothelium. It is classically defined as de novo hypertension associated with proteinuria > 0.3 g/24 h occurring after 20 weeks of gestation and is characterized by a latent phase between the beginning of pregnancy and the onset of the disease. This opens the way to a possible screening which would allow an early management of parturients...