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  • Title: [The value of continuous wave Doppler ultrasound in risk pregnancy-intrauterine growth retardation and pregnancy-induced hypertension].
    Author: Hütter W, Grab D, Schneider D, Terinde R, Wolf A.
    Journal: Zentralbl Gynakol; 1993; 115(2):51-6. PubMed ID: 8451890.
    Abstract:
    To evaluate the frequency of abnormal doppler results in pregnancies complicated by placental insufficiency, flow waveforms of 100 patients with documented intrauterine growth retardation--birthweight below the 10th percentile--were analysed. Uterine, arcuate and umbilical artery velocimetry were performed by means of a continuous wave Doppler ultrasound. Neither the range of serial examination nor the interval between last prepartal doppler test und delivery showed influence on the doppler results. Compared to normal pregnancy, a significant increase of diastolic notching and incomplete registration of maternal vessels were found. Using 90th percentile as cut-off limit last doppler examination before delivery showed pathological results in 76% of all cases with growth retardation and 90% of pregnancies with an additional risk of pregnancy induced hypertension. As pathological waveforms in the maternal compartment contribute a major part to abnormal velocity waveforms, doppler study of utero-placental vessels plays an important role in the diagnose of impaired persuasion of the placenta.
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