Gotowe bibliografie tematyczne / Umbilical Vein PH

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Gotowa bibliografia na temat „Umbilical Vein PH”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Umbilical Vein PH"

Kang, Hyun, Tae-Yun Sung, Young Seok Jee, et al. "A Comparison of Norepinephrine versus Phenylephrine to Prevent Hypotension after Spinal Anesthesia for Cesarean Section: Systematic Review and Meta-Analysis." Journal of Personalized Medicine 14, no. 8 (2024): 803. http://dx.doi.org/10.3390/jpm14080803.

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Background: This systematic review and meta-analysis aimed to compare the effects of using phenylephrine or norepinephrine on the pH and base excess (BE) of the umbilical artery and vein in parturients undergoing cesarean section. Methods: The study protocol was registered in INPLASY. Independent researchers searched Ovid-Medline, Ovid-EMBASE, and Cochrane Central Register of Controlled Trials (CENTRAL) databases and Google Scholar for relevant randomized controlled trials (RCTs). The primary outcome of this study was the umbilical artery (UA) or umbilical vein (UV) pH as neonatal condition at

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Park, Jong Cook, Kwan Sik Park, and Sung Yob Kim. "Effects of Left Uterine Displacement on General Anesthesia for Cesarean Section." Journal of Medicine and Life Science 2, no. 1 (2004): 41–48. http://dx.doi.org/10.22730/jmls.2004.2.1.41.

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Background: The hazards of aorto-caval compression by the gravid uterus in late pregnancy are well documented.The provision of left uterine displacement (LUD) has proven highly beneficial to both mother and infant. We decided to investigate the effect of a new wedge to provide left uterine displacement.Methods: 40 full-termed patients undergoing elective Caesarean section under a standardized regimen of general anesthesia were studied. We randomly divided the patients into the control group and the LUD group and assessed changes of maternal MAP and HR and infant's Apgar scores and cord blood g

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Wilkening, R. B., and G. Meschia. "Effect of occluding one umbilical artery on placental oxygen transport." American Journal of Physiology-Heart and Circulatory Physiology 260, no. 4 (1991): H1319—H1325. http://dx.doi.org/10.1152/ajpheart.1991.260.4.h1319.

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Placental O2 transport was studied in seven fetal lambs before and after occluding one of the two umbilical arteries. Ethanol was used to measure uterine and umbilical blood flows using the steady-state transplacental diffusion method. Blood samples were drawn from umbilical artery, umbilical vein, both uterine veins, and maternal artery and analyzed for blood flow indicator, O2 content, PO2, PCO2, and pH. Occlusion reduced the placental mass and the uterine blood flow, which was available for transplacental exchange, to 49.5 and 46.5% of control, respectively. After occlusion, fetal blood pre

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Olsen, Randi, Paul Webster, and John Bjarne Hansen. "Subcellular Localozation of TFPI in Human Umbilical Vein Endothelial Cells (HUVEC)." Proceedings, annual meeting, Electron Microscopy Society of America 54 (August 11, 1996): 44–45. http://dx.doi.org/10.1017/s0424820100162685.

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Tissue factor pathway inhibitor (TFPI) is a serine protease inhibitor which regulates tissue factor (TF) induced blood coagulation by inhibiting the action of factor VIIa-TF complexes and factor Xa. In plasma, more than 80 % of the TFPI is bound to lipoproteins, 10 -20 % is carrier free, whereas platelets contains a small amount of TFPI. A major pool is probably assosiated with the vascular endothelium (1). This pool may have a crucial regulatory function because the endothelial surface serves as a binding site for factor VII/VIIa, mediating the activation of the extrinsic coagulation system.T

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Czeresnia, Jonathan Mamber, Edward Araujo Júnior, Eduardo Cordioli, Wellington P. Martins, Luciano Marcondes Machado Nardozza, and Antonio Fernandes Moron. "Applicability of the Rapid Biophysical Profile in Antepartum Fetal Well-Being Assessment in High-Risk Pregnancies from a University Hospital in São Paulo, Brazil: Preliminary Results." ISRN Obstetrics and Gynecology 2013 (June 27, 2013): 1–4. http://dx.doi.org/10.1155/2013/329542.

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Objective. To evaluate the clinical applicability of the rapid biophysical profile (rBPP), comparing results of the rBPP to umbilical cord pH values and Apgar scores. Methods. A cross-sectional study was conducted with 37 pregnant women from our high-risk service. All of them gave birth at our institution. rBPP was conducted up to 24 h prior to delivery and pH values were obtained from the umbilical vein immediately after birth. The mean and standard deviations for maternal age, gestational age at birth, pH values, and Apgar score in the 1st and 5th minutes after birth were calculated. An unpa

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Samchuk, P. M., I. Kh Tsaroeva, A. I. Ishchenko, and E. L. Azoeva. "Assessment of electrolyte balance and oximetry of umbilical cord blood in newborns with fetal growth restriction." Voprosy ginekologii, akušerstva i perinatologii 21, no. 2 (2022): 49–54. http://dx.doi.org/10.20953/1726-1678-2022-2-49-54.

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Objective. To study the characteristics of oximetry and electrolyte balance of umbilical cord arterial and venous blood in newborns with fetal growth restriction. Patients and methods. Laboratory analysis of oximetry and electrolyte balance in blood samples from the umbilical artery and vein in 40 newborns after vaginal delivery at term and uncomplicated pregnancy (the control group) and in 30 newborns with fetal growth restriction after vaginal delivery at term (the study group) was performed. Results. The analysis revealed that the levels of FHbF, pO2, sO2, FO2Hb, FCOHb, cCa2+ and ctO2 in um

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Alarcón-Rodríguez, Raquel, María Paz Martín-Álvarez, Jessica García-González, et al. "Determination of Foetal Scalp Blood Sampling pH as an Indicator of Loss of Foetal Well-Being in Women Undergoing Caesarean Section." Healthcare 11, no. 5 (2023): 725. http://dx.doi.org/10.3390/healthcare11050725.

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Asphyxia during birth is one of the three leading causes of neonatal morbidity and mortality among newborns carried to term. The objective of this study was to evaluate the measurement of the foetal scalp blood pH as a measure of foetal status, evaluating: cord gases, meconium-stained fluid, APGAR score or the need for neonatal resuscitation in pregnant women undergoing caesarean sections. A cross-sectional study was carried out over a period of 5 years (2017–2021) at the Hospital de Poniente (southern Spain). A total of 127 pregnant women participated from whom a foetal scalp blood pH sample

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Polyanin, A. A., and I. J. Kogan. "Role of atrial natriuretic peptide (ANP) in feto-placental and maternal circulation." Journal of obstetrics and women's diseases 51, no. 1 (2002): 25–32. http://dx.doi.org/10.17816/jowd89948.

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ANPwas measured in maternal cubital vein (M), umbilical vein (UV) and artery (UA) in 39 women at term delivery (23 vaginal, 16 caesarean): 15 - normal pregnancy; 24 pregnancies were complicated by placental insufficiency, 14 - by preeclampsia, 10 - by diabetes mellitus. Blood gases and pH in UA, UV were measured. M, UA, UV ANPat caesarean section was similar to that in vaginal delivery (p0,05). In normal and complicated pregnancies, UA ANPwas significantly higher than ANPin M and UV. In pregnancies complicated by diabetes mellitus, UV ANPwas higher than ANPin UA (21, 93 fmol/l and 13, 03

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Rizzo, Giuseppe, Cecilia Mattioli, Ilenia Mappa, et al. "Hemodynamic factors associated with fetal cardiac remodeling in late fetal growth restriction: a prospective study." Journal of Perinatal Medicine 47, no. 7 (2019): 683–88. http://dx.doi.org/10.1515/jpm-2019-0217.

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Abstract Background Altered cardiac geometry affects a proportion of fetuses with growth restriction (FGR). The aim of this study was to explore the hemodynamic factors associated with cardiac remodeling in late FGR. Methods This was a prospective study of singleton pregnancies complicated by late-onset FGR undergoing assessment of left (LV) and right (RV) ventricular sphericity-index (SI). The study population was divided in two groups according to the presence of cardiac remodelling, defined as LVSI <5th centile. The following outcomes were explored: gestational age at birth, birthweight,

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Ikebuchi, Motoyoshi, Atsunori Kashiwagi, Takayuki Asahina, et al. "Effect of medium pH on glutathione redox cycle in cultured human umbilical vein endothelial cells." Metabolism 42, no. 9 (1993): 1121–26. http://dx.doi.org/10.1016/0026-0495(93)90269-t.

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Rozprawy doktorskie na temat "Umbilical Vein PH"

Ortigosa, Cristiane. "Doppler venoso fetal na insuficiência placentária: relação com o pH no nascimento." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/5/5139/tde-10072012-161319/.

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OBJETIVO: O presente estudo, realizado em gestantes de alto risco com diagnóstico de insuficiência placentária, tem como objetivo avaliar o fluxo sanguíneo fetal na veia portal esquerda (VPE), veia umbilical (VU) e ducto venoso (DV), e estabelecer quais parâmetros associam-se com a acidemia fetal no nascimento. MÉTODO: Pesquisa prospectiva envolvendo 58 gestantes, classificadas segundo a presença ou ausência do diagnóstico de acidemia no nascimento, de acordo com o pH no sangue da artéria umbilical, constituindo-se de: Grupo I: 26 casos (acidemia pH<7,20) e Grupo II: 32 casos (pH normal pH7,20

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Streszczenia konferencji na temat "Umbilical Vein PH"

Pötzsch, B., U. Delvos, E. Anders, N. Heimburger, and G. Müller-Berghaus. "FACTOR VIII/VON WILLEBRAND FACTOR COMPLEX: ONLY THE 440 000 SUBUNIT OF ENDOTHELIAL CELL-DERIVED VON WILLEBRAND FACTOR FORMS A COMPLEX WITH PURIFIED PLASMA FACTOR VIIIC." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644092.

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Von Willebrand Factor (vWF) circulates in plasma as a series of multimers with moleculag weight ranging from M = 0.44 x 106 up to more than 20 x 106 . Besides the mediation of platelet adhesion to exposed subendothelium, the protein plays an important role in the stabilization and the transport of Factor VIIIC (FVIIIC). In the present study the interaction between FVIIIC and vWF was studied by recombination experiments. vWF was isolated from cultured human umbilical vein endothelial cells by immunoprécipitation. This source of vWF ascertained, that it was free of FVIIIC as indicated by the abs

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Shatos, M., J. Doherty, D. Allen, and J. Hoak. "ALTERATIONS IN VASCULAR ENDOTHELIAL CELL FUNCTION BY OXYGEN-FREE RADICALS." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643365.

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The vascular endothelium is a target for oxidant-induced damage in many disease states including hyperoxia, inflammation, ischemia and reperfusion injury. However, little is known concerning oxidant injury to endothelial cells and its relationship to hemostasis. Our studies have focused on the ability of oxygen free radicals to injure and/or alter selected vascular endothelial cell functions pertinent to the regulation of hemostasis. Xanthine and xanthine oxidase, a well-characterized generating system for the production of the superoxide anion radical (O− 2) was used to sublethally injure hum

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