outcome were significantly increased in infants with abnormal S/D ratio (P < 0.001). When logistic regression analysis was performed after adjusting for gestational age, the odds ratio for poor perinatal outcome was 3.7 in the group showing abnormal S/D ratio (95% confidence interval 1.42-9.54, P = 0.007). Conclusion: Umbilical artery Doppler velocimetry is shown as a significantly efficient method in predicting perinatal outcome in preterm neonates with small-for-gestational age, and it may be useful in managing preterm patients with small-for-gestational age fetuses.Objectives: To show the role of umbilical artery Doppler examination in the evaluation of fetal growth potential and the quantification of various IUGR forms. Material and methods: The study included 116 single pregnancies with suspicion of IUGR following conventional ultrasound (IUGRE). The patients underwent fetal umbilical artery Doppler examination, measuring the RI value. The pregnant women were assigned to two groups: 54 hypertensive pregnancies and 62 non-hypertensive pregnancies. Results: At birth, there were 80 (68.9%) newborns with a weight deficit. The results obtained in non-hypertensive patients: the incidence of fetal weight deficit at birth was 51.6% (12.9% the moderate form, 38.7% the severe form). The reliability of umbilical Doppler examination was Se =68.7%, Sp =93.3%, PPV =91.6%, NPV =73.6%. The results obtained in hypertensive patients: the incidence of fetal weight deficit at birth was 88.8% (25.9% the moderate form and 62.9% the severe form). The reliability of umbilical Doppler examination in the evaluation of fetal growth disorders was Se = 66.6%, Sp = 100%, PPV = 100%, NPV = 27.2%. A 15.5% error percent (8.6% false negative results and 6.9% false positive results) was obtained.
Conclusions:In the presence of an ultrasound suspicion of IUGR, an abnormal umbilical RI value allows to confirm the alteration of fetal growth potential. A normal RI value in the context of IUGRE has a different significance depending on the presence or the absence of hypertension.
P46.08 Blood flow in pregnancies complicated with IUGR
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