Background: To evaluate the effect of oxytocin on blood circulation of fetus and uterus by Doppler ultrasound. Materials and Methods: Forty six pregnant women were assigned to receive for indication of delivery intravenous oxytocin. Doppler velocitometry before and after administration of oxytocin for umbilical,middle cerebral artery and uterine artery were performed, and Pulsatility index (PI)...

OBJECTIVE The aim of this study was to assess the predictive value of uterine artery Doppler imaging at 22-24 weeks of gestation for adverse pregnancy outcomes. MATERIALS AND METHODS This was a prospective study in which uterine artery Doppler was performed at 22-24 weeks of gestation in 165 pregnant women with singleton pregnancies. A pulsatility index (PI) more than 1.45 or bilateral uterin...

BACKGROUND Abnormal uterine artery Doppler indices are associated with pregnancy complications such as pre-eclampsia and intrauterine growth restriction. Poor trophoblast invasion may be a consequence of, or be associated with, abnormal Doppler indices. OBJECTIVE To evaluate in vitro trophoblast function following exposure to first-trimester serum from pregnancies with high uterine artery Dop...

background: fetal color doppler is important for evaluation of hypoxia in intrauterine growth restriction (iugr) fetus. objective: in this study we compare fetal and maternal color doppler with blood gas analysis to detect fetal acidosis. materials and methods: in this cross-sectional study we evaluated 100 hospitalized patients with iugr for comparison of color doppler results with arterial bl...

background: uterine arteriovenous malformation is a rare but potential life-threatening source of bleeding. a high index of suspicion and accurate diagnosis of the condition in a timely manor are essential because instrumentation that is often used for other sources of uterine bleeding can be lead to massive hemorrhage. case: we describe here a case of uterine arteriovenous malformation. a 32-y...

Accurate assessment of gestational age, fetal growth, and the detection of fetal and placental abnormalities are major benefits of sonography. Color Doppler can be used to assist in the identification of vascular architecture, detection of vascular pathology and visualization of blood flow changes associated with physiologic processes and disease states. The clinical applications of obstetrical...

Objective: In this study, we aimed to investigate umbilical cord blood CD33 and erythropoietin (EPO) levels of pregnants with abnormal umbilical and uterine artery doppler waveforms and to compare with normal pregnancies. Materials and Methods: Total 40 pregnant women were included in this study. Of these 40 women, while 20 patients had abnormal umbilical and uterine artery doppler waveforms, t...

OBJECTIVE To study the role of uterine artery notch on color Doppler ultrasound and roll over test in prediction of PIH. METHODS 100 women with high risk pregnancies were studied for presence or absence of uterine artery diastolic notch by Doppler ultrasound at 16-28 weeks. Same women were then subjected to roll over test at 28-32 weeks. RESULTS The primary outcome was that uterine diastoli...

OBJECTIVES To investigate whether, in women with abnormal uterine artery Doppler, platelet volume and function will identify a subgroup of women at increased risk of pre-eclampsia and intrauterine growth restriction and whether in-vitro platelet aggregation precedes the onset of clinical disease. DESIGN Platelet number, volume and aggregation induced by collagen or adenosine 5'-diphosphate we...

In women who develop preeclampsia there is a pathological increase in placental vascular resistance should be detectable by abnormal Dopplerf low studies of the maternal uterine vessels. In women considered at low risk with abnormal early pregnancy uterine artery Doppler studies are needed. Until such time as these are available, routine uterine artery Doppler screening of women considered at l...