Zone-specific reference ranges of fetal adrenal artery Doppler indices: a longitudinal study
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چکیده
منابع مشابه
Reference ranges for Doppler assessment of uterine artery resistance and pulsatility indices in dichorionic twin pregnancies.
OBJECTIVES To construct reference ranges of uterine artery Doppler parameters against gestation in twin pregnancies and to present charts of the pulsatility index (PI) and resistance index (RI) for clinical use. METHODS This was an observational study of the uterine circulation in 557 women with dichorionic twin pregnancies at 17-38 weeks' gestation. Uterine artery measurements were performed...
متن کاملLongitudinal reference ranges for fetal ultrasound biometry in twin pregnancies
OBJECTIVE The purpose of this study was to establish longitudinal reference ranges for fetal ultrasound biometry measurements and growth parameters in twin pregnancies. METHOD A total of 200 uncomplicated twin pregnancies before 21 weeks of gestation were recruited for this prospective, longitudinal study. Women who abandoned follow-up, pregnancies with unknown outcomes or pregnancies with co...
متن کاملGestation-specific reference intervals for fetal cardiac Doppler indices from 12 to 40 weeks of gestation
We aimed to establish gestation age specific reference intervals for Doppler indices of fetal cardiac function from 12 to 40 weeks of pregnancy. In a cross-sectional observational study of singleton pregnancies, examinations were performed in 221 women evenly distributed across each week of pregnancy. Blood flow through the four cardiac valves was examined with Doppler. For the atrioventricular...
متن کامل[Longitudinal reference intervals of maternal-fetal Doppler parameters].
PURPOSE To create longitudinal reference intervals for pulsatility index (PI) of the umbilical (UA), middle cerebral (MCA), uterine (UtA) arteries and ductus venosus (DV) in a Brazilian cohort. METHODS A longitudinal observational study performed from February 2010 to May 2012. Low risk pregnancies were scanned fortnightly from 18 to 40 weeks for the measurements of PI of the UA, MCA, DV and ...
متن کاملEffects of Dexamethasone on Fetal Doppler Indices
Objective: To assess the impacts of dexamethasone given to the mother on fetal Doppler flow velocity waveforms of both umbilical and fetal middle cerebral arteries in pregnancies with normal fetoplacental vascular resistance. Study Design: Prospective Study. Patients and Methods: Pregnant women between 28 weeks and 34 weeks gestation at risk of preterm labour, Preterm birth was anticipated on t...
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ژورنال
عنوان ژورنال: BMC Pregnancy and Childbirth
سال: 2020
ISSN: 1471-2393
DOI: 10.1186/s12884-020-03480-z