Umbilical Artery
Mostrando 1-12 de 74 artigos, teses e dissertações.
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1. Fetal thymus in growth-restricted fetuses due to placental insufficiency
SUMMARY OBJECTIVE: The aim of this study was to assess fetal thymus size by ultrasound in growth-restricted fetuses due to placental insufficiency and compare to high-risk and low-risk pregnancy fetuses with normal placental function. METHODS: This is a nested case-control study of pregnant women followed up at a university hospital (July 2012 to July 2013
Revista da Associação Médica Brasileira. Publicado em: 2023
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2. Doppler Ultrasound of the Umbilical Artery: Clinical Application
Resumo Objetivo Compilar informação relevante proveniente da literatura atual sobre a ultrassonografia Doppler das artérias umbilicais (AUs) na prática clínica, considerações e limitações técnicas e perspectivas futuras. Métodos A pesquisa bibliográfica foi realizada nos bancos de dados PubMed e Medline e restringiu-se a artigos escritos na l
Revista Brasileira de Ginecologia e Obstetrícia. Publicado em: 2022
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3. Doppler velocimetry in fetal rats exposed to enoxaparin and unfractionated heparin (UFH) during pregnancy
Abstract Purpose: To evaluate the effects of enoxaparin and unfractionated heparin (UFH) administered in prophylactic and therapeutic doses on fetal vessels in healthy pregnant Wistar rats, according to Doppler velocimetry measurements. Methods: Fifty animals were assigned to one of five groups: controls (saline), prophylactic and therapeutic enoxaparin (1
Acta Cir. Bras.. Publicado em: 2017-05
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4. Reduced placental volume and flow in severe growth restricted fetuses
OBJECTIVES: To evaluate placental volume and vascular indices in pregnancies with severe fetal growth restriction and determine their correlations to normal reference ranges and Doppler velocimetry results of uterine and umbilical arteries. METHODS: Twenty-seven fetuses with estimated weights below the 3rd percentile for gestational age were evaluated. Pla
Clinics. Publicado em: 2016-06
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5. Fetal growth according to different reference ranges in twin pregnancies with placental insufficiency
The aim of this study was to compare different fetal growth curves in twin pregnancies with severe placental insufficiency. A retrospective cross-sectional analysis of 47 twin pregnancies with absent or reverse end diastolic flow in the umbilical artery of one fetus was performed. Pregnancies with major fetal abnormalities, twin-twin transfusion or three or
Clinics. Publicado em: 2015-12
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6. Effects of Human Umbilical Cord Mesenchymal Stem Cells on Renal Ischaemia-reperfusion Injury in Rats
Objective This study aims to observe the function of umbilical cord-mesenchymal stem cells (UC-MSCs) labelled with enhanced green fluorescent protein (eGFP) in the repair of renal ischaemia-reperfusion (I/R) injury, to determine the effects on inflammatory cascade in an established rat model and to explore possible pathogenesis. Materials and Methods Si
Int. braz j urol.. Publicado em: 2014-08
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7. Transumbilical endoscopic cholecystectomy in a porcine model
PURPOSE: Natural orifice transluminal endoscopic surgery (NOTES) is a new technique. This study describes our initial experience of NOTES and investigates the feasibility of transumbilical endoscopic cholecystectomy (TUEC). METHODS: Eight domestic pigs were submitted to TUEC. After establishment of pneumoperitoneum, a bi-channel endoscope was placed through
Acta Cir. Bras.. Publicado em: 2013-11
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8. Doppler venoso fetal na insuficiência placentária: relação com o pH no nascimento / Fetal venous Doppler in pregnancies with placental dysfunction: correlation with pH at birth
OBJECTIVE: This study, conducted in high-risk pregnancies with placental insufficiency, aims to avaliate blood flow in the fetal left portal vein (LPV), umbilical vein (UV) and ductus venosus (DV), and establish which parameters are associated with acidemia at birth. METHOD: A prospective research involving 58 pregnant women, classified according to the pres
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/04/2012
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9. Sistematização da aorta abdominal, ramos colaterias parietais e viscerais e ramos terminais em coelhos da raça Nova Zelândia (Oryctolagus cuniculus)
In this study was defined the pattern, the variations and distribution of the parietal and visceral collateral branches and terminal branches of the abdominal aorta in New Zeland rabbits (Oryctolagus cuniculus), being used 30 animals, 14 males e 16 females, young adults. The arterial system was filled with red colored latex through the thoracic aorta in the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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10. Human umbilical cord blood cells in infarcted rats
Therapy with bone marrow-derived cells has been used in ischemic patients with reported success. The aim of this study was to determine the therapeutic efficacy of fresh and frozen human umbilical cord blood cells (hUCB) in Wistar rats submitted to permanent occlusion of the left coronary artery. Three hours after myocardial infarction, 2 x 10(7) hUCB cells
Brazilian Journal of Medical and Biological Research. Publicado em: 2010-03
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11. Peculiaridades da circulação mesentérica em recém-nascidos e suas implicações em doenças gastrintestinais do período neonatal
OBJETIVO:Descrever peculiaridades da circulação mesentérica neonatal e caracterizar fatores de suscetibilidade ao desenvolvimento de doenças gastrintestinais e alterações do fluxo sanguíneo da artéria mesentérica superior por meio da dopplerfluxometria. FONTES DE DADOS: Livros-textos e publicações indexadas no Medline e SciELO nos últimos 20 anos
Revista Paulista de Pediatria. Publicado em: 2009-06
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12. Predicting acidemia at birth in pregnancies with abnormal but present end-diastolic flow velocity in umbilical artery / Predição de acidemia ao nascimento em gestações com dopplervelocimetria anormal e fluxo diastólico positivo das artérias umbilicais
No setor de Vitalidade Fetal na Clínica Obstétrica do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo foi conduzido estudo caso-controle com seguimento prospectivo com quarenta e seis pacientes. O objetivo desse estudo foi identificar a associação dos testes de avaliação de vitalidade fetal e acidemia ao nascimento em gest
Publicado em: 2009