Reverse end-diastolic umbilical artery blood flow at 11 weeks' gestation
نویسندگان
چکیده
منابع مشابه
End-diastolic Umbilical Artery Doppler Flow Velocity
Doppler velocity measurement has been extensively applied in prenatal diagnosis for more than two decades. Blood flow in numerous vessels has been investigated to predict fetal condition, especially in the umbilical artery [1–7]. Histopathologic studies suggest that abnormal umbilical artery Doppler velocimetry is correlated with a pathologic lesion of the placenta characterized by obliteration...
متن کاملSingle umbilical artery at 11-14 weeks' gestation: relation to chromosomal defects.
OBJECTIVE To determine the possible association between single umbilical artery (SUA) at 11-14 weeks of gestation and the incidence of chromosomal abnormalities. METHODS Color flow imaging of the fetal pelvis was used to determine the number of umbilical arteries in 717 fetuses immediately before chorionic villus sampling for karyotyping at 11-14 weeks' gestation. RESULTS Single umbilical a...
متن کاملUmbilical cord diameter at 11-14 weeks of gestation: relation to chromosomal defects.
OBJECTIVE To determine the potential value of measuring umbilical cord diameter (UCD) at 11-14 weeks of gestation in screening for chromosomal defects. METHODS The UCD was measured in 1323 fetuses immediately before chorionic villus sampling for karyotyping at 11-14 weeks of gestation. In the group of chromosomally normal fetuses, regression analysis was used to determine the association betw...
متن کامل[Predictor parameters of neonatal death in gestations with absent or reverse end-diastolic flow in the umbilical artery doppler velocimetry].
PURPOSE To evaluate the antenatal and postnatal risk factors of neonatal death in pregnancies with absent (DZ) or reverse (DR) end-diastolic flow in the umbilical artery. METHODS A cross-sectional retrospective study based on data from 48 medical records of singleton pregnancies with DZ or DR, and gestational age of 24 to 34 weeks, at a maternity in the Brazilian Northeast. Mean age was 27.3 ...
متن کاملMaternal thyroid function at 11-13 weeks of gestation.
OBJECTIVE To establish normal ranges of maternal serum thyroid-stimulating hormone (TSH), free thyroxine (FT4) and free triiodothyronine (FT3) at 11-13 weeks of gestation. METHODS Maternal serum concentrations of FT3, FT4, TSH, anti-thyroperoxidase (anti-TPO) and anti-thyroglobulin (anti-Tg) antibodies were measured at 11-13 weeks. Normal ranges were constructed from the data of singleton pre...
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ژورنال
عنوان ژورنال: Ultrasound in Obstetrics and Gynecology
سال: 1995
ISSN: 0960-7692
DOI: 10.1046/j.1469-0705.1995.05020141.x