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  • Title: [Doppler ultrasound findings in therapy with urapidil].
    Author: Schiesser M, Zafiriou N, Schulz M, Bastert G, Wacker J.
    Journal: Zentralbl Gynakol; 1999; 121(12):611-6. PubMed ID: 10666873.
    Abstract:
    OBJECTIVE: In a prospective study we investigated, whether changes in fetal or maternal circulation can be found by Doppler sonography under therapy with urapidil. PATIENTS AND METHODS: We investigated in 11 patients with severe pregnancy-induced hypertension (PIH) or superimposed preeclampsia in the third trimester. Doppler flow results of maternal and fetal vessels before and during therapy with urapidil. Hemodynamic parameters, like maternal blood pressure, and heart rate as well as other clinical parameters were assessed. RESULTS: Whereas the antihypertensive effects in the systolic and diastolic blood pressure were significant, we couldn't find changes in the resistance indices of fetal circulation. In contrast we found a decrease in the resistance indices in maternal vessels after an average of six days of urapidil therapy. These changes were significant in the uterine artery on the side of placental insertion. CONCLUSIONS: Because of only few side effects and a safe lowering of blood pressure, therapy with urapidil seems preferable to other well known drugs. Although Doppler flow velocimetry of uteroplacental vessels has no diagnostic benefit in monitoring PIH, the findings with this method under prolonged antihypertensive therapy are a chance for a better understanding of hemodynamic changes. The decrease in the resistance indices is another argument for the use of urapidil.
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