Abstract

Doppler sonography is now an established method in the care of risk pregnancies, especially in cases with preeclampsia. Its clinical importance is based both on its use as a diagnostic tool and as a screening method. In manifest preeclampsia Doppler sonography gives insight into the pathophysiological background, especially placental pathology. Additionally, the present hemodynamic situation of the fetus and its change can be monitored accurately. The adequacy of the fetal reaction determines clinical decisions in modern obstetrics. It is particularly useful in the critical situations which are common during preeclampsia. Doppler sonography is currently also being evaluated as a screening method to identify pregnancies with incomplete trophoblast invasion by examining blood flow in the uteroplacental arteries during the second trimester. Recent studies indicate that roughly half of the women who develop preeclampsia could be identified in such a screening.

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