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OBJECTIVE To identify the temporal sequence of abnormal Doppler changes in the fetal circulation in a subset of early and severely growth-restricted fetuses. METHODS This was a prospective observational study in a tertiary care/teaching hospital. Twenty-six women who were diagnosed with growth-restricted fetuses by local standards before 32 weeks'(More)
OBJECTIVE Our objective was to test the hypothesis that systemic blood pressure (BP) is increased above normal in intrauterine growth restricted (IUGR) fetal lambs with elevated umbilical artery (UmA) Doppler indices. STUDY DESIGN Five pregnant ewes were exposed to hyperthermic conditions for 80 days beginning at 40 days' gestation (dGA) to induce IUGR.(More)
OBJECTIVES This study was carried out to investigate growth indicators of fetal lean mass and fat mass in the second half of the gestational period in pregnancies complicated by gestational diabetes mellitus (GDM) in comparison to normal control pregnancies. METHODS Forty-three control and 171 GDM pregnancies were followed longitudinally by ultrasound(More)
OBJECTIVE To identify specific estimates and predictors of neonatal morbidity and mortality in early onset fetal growth restriction due to placental dysfunction. METHODS Prospective multicenter study of prenatally diagnosed growth-restricted liveborn neonates of less than 33 weeks of gestational age. Relationships between perinatal variables (arterial and(More)
A number of genetic and environmental factors are taken into account as responsible for intrauterine growth restriction (IUGR); nevertheless, the relevance of genetic alteration in IUGR aetiology remains to be determined. The aim of this study was to investigate using a combined cytogenetic-molecular approach, improved by a new application of QF-PCR method,(More)
We investigated the hemodynamics of the ductus venosus in the human fetus by means of a combined approach based on Doppler and computational techniques. The aim of our study was to assess the blood velocity changes across the ductus venosus. Color Doppler equipment was used to investigate 29 normal fetuses between 20 and 39 weeks of gestation. Velocities at(More)
OBJECTIVE Our aim was to test the hypothesis that Doppler velocimetry of the peripheral and central circulations in normal fetuses is not affected by moderately high altitude (Denver, Colo-1609 m) compared with sea level (Milan, Italy-40 m). STUDY DESIGN One hundred nineteen patients with singleton pregnancies underwent Doppler waveform analysis of the(More)
OBJECTIVE To determine whether umbilical blood flow is reduced in a subset of growth-restricted (IUGR) fetuses when expressed as flow per kilogram or flow per unit of specific sonographic fetal measurements. DESIGN Prospective. SUBJECTS Thirty-seven IUGR fetuses were examined by Doppler ultrasound within 4 h of the last non-stress test prior to(More)
OBJECTIVE We have previously shown, in a cross-sectional study, that the reduction in umbilical vein blood flow in intrauterine growth-restricted fetuses is due to reduced umbilical vein velocity. The purpose of this longitudinal study in intrauterine growth-restricted fetuses was to determine whether the umbilical vein velocity reduction, which, in turn,(More)
OBJECTIVE To test the hypothesis that reduced birth weight in normal fetuses born at moderately high altitude (Denver), compared with the birth weight in normal fetuses born at sea level (Milan), is caused by a reduction in both lean mass and subcutaneous fat mass. STUDY DESIGN Ninety-four normal singleton pregnancies (46 in Denver, 48 in Milan) had(More)