Vascular Biomarkers Predictive of the Progression From Hypertensive Disorders in Pregnancy to Preeclampsia in Pregnant Women

Quantification of UEMP by flow cytometry in urine (10 ml) collected at 26 ± 2 week and 34th ± 2 week of amenorrhea.

Measurement of the aortic central arterial pressure (systolic and diastolic arterial pressure) by applanation tonometry, and the index of aortic increase by applanation tonometry, the carotid-femoral pulse wave velocity using the SphygmoCor® system (PWV Medical) and/or Popmetre.

Plasma angiogenic biomarker levels determination using an immunoassay, including circulating sFlt-1, circulating PIGF, sFlt-1 / PIGF ratio, circulating VEGF, circulating soluble endoglin (sEng), other biomarkers assessment, including anti-angiotensin II receptor (AT1), circulating copeptin, circulating interleukin 17 (IL-17), Urinary Neutrophil Gelatinase-Associated Lipocalin (NGAL), as well as CEMP and CEC quantification using flow cytometry.

This measurement is added to the routine examination of the uterine artery. Bi-dimensional ultrasound imaging with angio-Doppler allows the study of the artery as the blood flow velocity and vessel diameter. Uterine artery Doppler pulsatility index (UtA-PI), mean flow velocity and diameter measurement could be calculated with Doppler instrument with software could determine instantaneous true mean blood flow velocity. Measurement is made by placing the cursor from outer edge to outer edge of the artery adventitia, on a cross-section and taking the largest diameter