Abnormal umbilical artery Doppler velocimetry and placental histopathological correlation in fetal growth restriction
نویسندگان
چکیده
منابع مشابه
Fetoplacental biometry and umbilical artery Doppler velocimetry in the overnourished adolescent model of fetal growth restriction.
OBJECTIVE The purpose of this study was to evaluate ultrasonographically fetal growth trajectories, placental biometry, and umbilical artery (UA) Doppler indices in growth-restricted pregnancies of overnourished adolescent ewes and normally developing pregnancies of control-fed ewes. STUDY DESIGN Singleton pregnancies were established using embryo transfer in 42 adolescent ewes that were over...
متن کاملUmbilical Venous Doppler Velocimetry to Supplement Conventional Arterial Doppler to Assess Third Trimester Fetal Growth Restriction
HKJGOM 2009; 9 (1) 28 Introduction Fetuses born with significant growth restriction have an increased risk of adverse perinatal outcomes1. Moreover, increased perinatal morbidity and mortality was often associated with the presence of abnormal Doppler waveforms in the umbilical arteries (UAs), either in the form of absent or reversed end-diastolic flow2,3. In fetuses with abnormal umbilical art...
متن کاملCerebroplacental Doppler ratio and placental histopathological features in pregnancies complicated by fetal growth restriction.
OBJECTIVE To correlate placental pathologic lesions, as defined by the Society for Pediatric Pathology, to the severity of the ratio of the pulsatility Doppler index (PI) of the fetal middle cerebral artery to that of the umbilical artery (cerebroplacental ratio, CPR). STUDY DESIGN A cohort-study of 176 singleton pregnancies complicated by fetal growth restriction (FGR). RESULTS The mean va...
متن کاملI-46: Obstetrical Doppler
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...
متن کاملFetal Hemodynamic Parameters in Low Risk Pregnancies: Doppler Velocimetry of Uterine, Umbilical, and Middle Cerebral Artery
Objective. To elaborate curves of longitudinal reference intervals of pulsatility index (PI) and systolic velocity (SV) for uterine (UtA), umbilical (UA), and middle cerebral arteries (MCA), in low risk pregnancies. Methods. Doppler velocimetric measurements of PI and SV from 63 low risk pregnant women between 16 and 41 weeks of gestational age. Means (±SD) for intervals of gestational age and ...
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ژورنال
عنوان ژورنال: South African Journal of Obstetrics and Gynaecology
سال: 2017
ISSN: 2305-8862
DOI: 10.7196/sajog.2017.v23i1.1109