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Mecanismo de centralização: Da insuficiência placentária à adaptação circulatória fetal
(2008-07-01)
The application and development of obstetric Dopplervelocimetry provide a basis for the investigation of placental insuf ciency and demonstrate the dynamic behavior of fetal circulation during hypoxia. In clinical practice, ...
Diagnostico por Doppler de la trombosis arterial causada por cateterismo umbilical
(Sociedad Chilena de Pediatría, 1991)
Dopplervelocimetria no Rastreamento de Aneuploidias no Primeiro Trimestre da Gestação
(Federação Brasileira das Sociedades de Ginecologia e Obstetrícia, 2001-06-01)
Objective: to study the value of Doppler velocimetry of the ductus venosus and of the umbilical artery and vein, in the screening for chromosomal abnormalities at 10-14 weeks of gestation. Patients and Methods: a total of ...
Predicting pH at birth in pregnancies with abnormal pulsatility index and positive end-diastolic velocity in the umbilical artery
(INFORMA HEALTHCARELONDON, 2013-08-02)
Objectives: To identify potential associations between fetal surveillance tests and acidosis at birth in pregnancies with abnormal but positive end-diastolic velocity in the umbilical artery. Methods: A prospective ...
Ultrasound detection rate of single umbilical artery in the first trimester of pregnancy
(WILEY-BLACKWELL, 2011)
Objective To determine accuracy of first trimester detection of single umbilical artery (SUA). Methods The number of vessels in the umbilical cord was examined in a prospective cohort of 779 singleton, low-risk, unselected ...
A comparative-analysis of glycosaminoglycans from human umbilical arteries in normal subjects and in pathological conditions affecting pregnancy
(Williams & Wilkins, 1992-11-01)
BACKGROUND: Vascular cells express different phenotypes in adult and fetal vessels, and the extracellular matrix they synthesize should reflect these differences. Alterations of vascular proteoglycan/glycosaminoglycan is ...
Fetal hemodynamic changes following maternal betamethasone administration in pregnancies with fetal growth restriction and absent end-diastolic flow in the umbilical artery
(TAYLOR & FRANCIS AS, 2009)
Objectives. To examine the effects of betamethasone administration on umbilical artery (UA), middle cerebral artery (MCA) and ductus venosus (DV) Doppler flow. Design. Longitudinal prospective study. Setting: Fetal ...
Human umbilical artery smooth muscle exhibits a 2-APBsensitive capacitative contractile response evoked by vasoactive substances and expresses mRNAs for STIM, Orai and TRPC channels
(Inst Histol Embriol-conicet, 2012-08)
After depletion of intracellular Ca2+ stores the capacitative response triggers an extracellular Ca2+ influx through store-operated channels (SOCs) which refills these stores. Our objective was to explore if human umbilical ...