Objective: To assess and compare the consequences of different approaches of epidural and combined spinal, epidural analgesia on the umbilical and uterine artery flow velocity waveform indices, maternal haemodynamics and neonatal outcome in normal term labour. Design: A prospective, observational, randomised study. Settings: El-Hussien Hospital and Kuwait Maternity Hospital. Subjects and Method...

Physiological study of the developing mouse circulation has lagged behind advances in molecular cardiology. Using an innovative high-frequency Doppler system, we noninvasively characterized circulatory hemodynamics in early mouse embryos. We used image-guided 43 MHz pulsed-wave (PW) Doppler ultrasound to study the umbilical artery and vein, or dorsal aorta in 109 embryos. Studies were conducted...

Ultrasound was used to measure growth of the spiny mouse fetus throughout gestation and to record Doppler measurements of heart rate and umbilical blood flow to monitor fetal blood supply and wellbeing. Female spiny mice were anesthetized on 6 occasions throughout pregnancy. Ultrasound was performed with a Philips HDI 5000 machine using a compact linear CL15-7 transducer. Fetal heart rate and g...

doppler ultrasound can provide important information about vascular problems through the analysis of blood flow wave-form. the purpose of this study was obtaining the normal images of color doppler and estimation of blood flow velocity parameters of femoral artery in rabbits. left and right femoral arteries of 8 healthy adult new zealand rabbits were evaluated. color and spectral doppler images...

BACKGROUND The aim of this study was to determine the effect of Ramadan fasting on fetal growth and Doppler in-dices of pregnancy. METHODS Fifty two healthy pregnant women of second or third trimester, 25 in fasting group and 27 in non fasting group were included. Growth parameters including biparietal diameter (BPD), femoral length (FL), abdominal circumference (AC), estimated fetal weight, ...

OBJECTIVE To identify risk factors for fetuses and neonates with single umbilical artery and isolated single umbilical artery (single umbilical artery in the absence of chromosomal abnormalities and structural abnormalities) and to assess whether there is an increased risk for complications during pregnancy, labor, and delivery, and for perinatal morbidity and mortality. METHODS A population-...

OBJECTIVE The aim of this study was to determine whether morphology and measurement of the umbilical cord could be accurately assessed at the time of the 11- to 13(+6)-week scan. METHODS We conducted a prospective study of 100 consecutive women with singleton pregnancies at 11-13(+6) weeks' gestation who were seen for routine aneuploidy screening. Transabdominal ultrasound scans were performe...