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Umbilical doppler

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https://www.readbyqxmd.com/read/28320230/placental-characteristics-in-monochorionic-twins-with-selective-intrauterine-growth-restriction-assessed-by-gradient-angiography-and-three-dimensional-reconstruction
#1
Chenyu Gou, Meizhi Li, Xiaoling Zhang, Xiangzhen Liu, Xuan Huang, Yi Zhou, Qun Fang
OBJECTIVE: To investigate the placental characteristics in selective intrauterine growth restriction (sIUGR) using gradient angiography and three-dimensional (3D) reconstruction from computed tomography (CT) scan data. METHODS: This study included 23 sIUGR cases and 16 monochorionic twin-pregnancies without sIUGR. We injected nonionic iodinated contrast agents into the umbilical arteries and veins. Placental characteristics were analyzed after CT scanning and 3D reconstruction...
March 21, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28304325/early-feeding-tolerance-in-small-for-gestational-age-infants-with-normal-versus-abnormal-antenatal-doppler-characteristics
#2
M F Ahamed, Pe'er Dar, M Vega, Mimi Kim, Q Gao, T Havranek
OBJECTIVES: To determine differences in feeding tolerance amongst preterm small for gestational age (SGA) infants with normal versus abnormal umbilical artery Doppler flow defined as absent or reversed end diastolic flow (AREDF). METHODS: This was a retrospective cohort study of infants <35 weeks gestational age (GA) and birth weight (BW) <10th percentile. Day of initiation of feeds, days to full feeds and CRIB II scores were the primary outcomes. Clinical characteristics were compared between the groups of SGA infants with normal and AREDF...
March 16, 2017: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/28294442/prediction-of-adverse-perinatal-outcome-by-cerebroplacental-ratio-adjusted-for-estimated-fetal-weight
#3
Angelo Sirico, Anke Diemert, Peter Glosemeyer, Kurt Hecher
OBJECTIVES: The aim of our study was to evaluate the relationship between the cerebroplacental ratio (CPR) and estimated fetal weight (EFW). Furthermore, we evaluated the role of CPR in the prediction of adverse perinatal outcome and whether CPR measurements adjusted for EFW improve its predictive value. METHODS: This is a retrospective cohort study including pregnancies, where Doppler investigations of umbilical artery (UA) and middle cerebral artery (MCA) were performed after 30 weeks...
March 12, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28279117/progression-of-doppler-changes-in-early-onset-small-for-gestational-age-fetuses-how-frequent-are-the-different-progression-sequences
#4
José Morales-Roselló, Asma Khalil, Victoria Fornés-Ferrer, José Alberola-Rubio, David Hervas-Marín, Núria Peralta Llorens, Alfredo Perales-Marín
OBJECTIVE: To evaluate the progression of Doppler abnormalities in early-onset fetal smallness (SGA). METHODS: 948 Doppler examinations of the umbilical artery (UA), middle cerebral artery (MCA) and ductus venosus (DV), belonging to 405 early-onset SGA fetuses, were studied, evaluating the sequences of Doppler progression, the interval examination-labor at which Doppler became abnormal and the cumulative sum of Doppler anomalies in relation with labor proximity...
March 9, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28277907/the-effect-of-maternal-hyperoxygenation-on-fetal-circulatory-system-in-normal-growth-and-iugr-fetuses-what-we-can-learn-from-this-impact
#5
Nizar Khatib, Israel Thaler, Ron Beloosesky, Hanin Dabaja, Nadir Ganem, Philippe Abecassis, Yuval Ginsberg, Zeev Weiner
PURPOSE: The study aims were to assess and compare the effects of maternal hyperoxygenation on fetal circulation, in fetuses with intra-uterine growth retardation and normal fetal growth. METHODS: Twelve singleton pregnant women with normal fetal growth and twelve singleton pregnant women with intrauterine growth restriction were recruited. Mean gestational age of 35.2±3.5 and 34.7±3.9 weeks respectively. Doppler blood flow velocity waveforms were obtained from the middle cerebral artery, umbilical, main and proximal right pulmonary arteries...
March 3, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28158932/the-association-of-neonatal-morbidity-with-long-term-neurological-outcome-in-infants-who-were-growth-restricted-and-preterm-at-birth-secondary-analyses-from-truffle-trial-of-randomized-umbilical-and-fetal-flow-in-europe
#6
A G Van Wassenaer-Leemhuis, N Marlow, C Lees, H Wolf
OBJECTIVE: To study the relationship between neonatal morbidity (NNM) and two-year neurodevelopmental impairment (NDI) in surviving children after early fetal growth restriction (FGR). DESIGN: Secondary analysis of a European randomised trial (TRUFFLE) of delivery for very preterm fetuses dependent on venous Doppler or cardiotocographic criteria. SETTING: Tertiary perinatal centres, participants in TRUFFLE. POPULATION: 402 surviving children after early FGR...
February 3, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28155716/a-multi-component-parallel-plate-flow-chamber-system-for-studying-the-effect-of-exercise-induced-wall-shear-stress-on-endothelial-cells
#7
Yan-Xia Wang, Cheng Xiang, Bo Liu, Yong Zhu, Yong Luan, Shu-Tian Liu, Kai-Rong Qin
BACKGROUND: In vivo studies have demonstrated that reasonable exercise training can improve endothelial function. To confirm the key role of wall shear stress induced by exercise on endothelial cells, and to understand how wall shear stress affects the structure and the function of endothelial cells, it is crucial to design and fabricate an in vitro multi-component parallel-plate flow chamber system which can closely replicate exercise-induced wall shear stress waveforms in artery. METHODS: The in vivo wall shear stress waveforms from the common carotid artery of a healthy volunteer in resting and immediately after 30 min acute aerobic cycling exercise were first calculated by measuring the inner diameter and the center-line blood flow velocity with a color Doppler ultrasound...
December 28, 2016: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28153658/first-trimester-alcohol-exposure-alters-placental-perfusion-and-fetal-oxygen-availability-affecting-fetal-growth-and-development-in-a-non-human-primate-model
#8
Jamie O Lo, Matthias C Schabel, Victoria H J Roberts, Xiaojie Wang, Katherine S Lewandowski, Kathleen A Grant, Antonio E Frias, Christopher D Kroenke
BACKGROUND: Prenatal alcohol exposure leads to impaired fetal growth, brain development, and stillbirth. Placental impairment likely contributes to these adverse outcomes, but the mechanisms and specific vasoactive effects of alcohol that links altered placental function to impaired fetal development remain areas of active research. OBJECTIVE: Recently, we developed magnetic resonance imaging techniques in nonhuman primates to characterize placental blood oxygenation through measurements of T2* and perfusion using dynamic contrast-enhanced magnetic resonance imaging...
March 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28152557/perinatal-outcome-of-placental-massive-perivillous-fibrin-deposition-a-case-control-study
#9
Louise Devisme, Claire Chauvière, Hélène Franquet-Ansart, Anastasia Chudzinski, Morgane Stichelbout, Véronique Houfflin-Debarge, Damien Subtil
OBJECTIVE: To describe the obstetric outcomes associated with massive perivillous fibrin deposition (MFD) compared with a control series and to determine if outcome differs according to the extent of fibrin deposition. METHOD: Retrospective case-control study based on placentas analyzed over a consecutive 12-years period. MFD was considered severe if it extended over more than 50% of the placenta and moderate between 25 and 50%. RESULTS: During the study period, MFD was observed on 71 placentas, 39 severe and 32 moderate...
February 2, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28150314/the-upturned-superior-mesenteric-artery-sign-for-first-trimester-detection-of-congenital-diaphragmatic-hernia-and-omphalocele
#10
Ravi Selvaraj Lakshmy, Joy Agnees, Nity Rose
OBJECTIVES: The aim of this study was to follow the course of the superior mesenteric artery (SMA) in first-trimester fetuses to predict the location of the small bowel. Its abnormal course aids in early detection of congenital diaphragmatic hernia (CDH) and assessment of the contents of omphalocele. METHODS: The SMA can be easily identified in a sagittal section of the fetus by using color Doppler sonography at the 11- to 14-week scan, and normally, it has a downward course caudally to supply the intestines...
March 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28138914/obstetric-and-perinatal-outcome-in-anti-ro-ssa-positive-pregnant-women-a-prospective-cohort-study
#11
Nuria Martínez-Sánchez, Sergio Pérez-Pinto, Ángel Robles-Marhuenda, Francisco Arnalich-Fernández, María Martín Cameán, Edurne Hueso Zalvide, Jose Luis Bartha
Anti-Ro/SS-A is one specific type of antinuclear antibodies. They are in the majority of cases associated with primary Sjögren syndrome (SS) but also in Systemic Lupus Erythematosus (SLE), rheumatoid arthritis (RA), and in healthy people. During pregnancy, they are mainly associated to congenital heart block (CHB) and neonatal lupus (NL). The aim of this study was to compare the rate of maternal and fetal complications between a series of anti-Ro/SS-A positive pregnant women prospectively followed. Forty-two anti-Ro/SSA antibodies positive pregnant women that were referred to our hospital between 2011 and 2015...
January 30, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28130433/the-association-of-maternal-thyroid-function-with-placental-hemodynamics
#12
M Barjaktarovic, T I M Korevaar, L Chaker, V W V Jaddoe, Y B de Rijke, T J Visser, E A P Steegers, R P Peeters
STUDY QUESTION: What is the clinical association of maternal thyroid function with placental hemodynamic function? SUMMARY ANSWER: A higher free thyroxine (FT4) concentration in early pregnancy is associated with higher placental vascular resistance. WHAT IS KNOWN ALREADY: Suboptimal placental function is associated with preeclampsia (which, in turn, further deteriorates placental hemodynamics and impairs the fetal blood supply), fetal growth restriction and premature delivery...
January 26, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28114884/everrest-prospective-study-a-6-year-prospective-study-to-define-the-clinical-and-biological-characteristics-of-pregnancies-affected-by-severe-early-onset-fetal-growth-restriction
#13
Rebecca Spencer, Gareth Ambler, Jana Brodszki, Anke Diemert, Francesc Figueras, Eduard Gratacós, Stefan R Hansson, Kurt Hecher, Angela Huertas-Ceballos, Neil Marlow, Karel Marsál, Eva Morsing, Donald Peebles, Carlo Rossi, Neil J Sebire, John F Timms, Anna L David
BACKGROUND: Fetal growth restriction (FGR) is a serious obstetric condition for which there is currently no treatment. The EVERREST Prospective Study has been designed to characterise the natural history of pregnancies affected by severe early onset FGR and establish a well phenotyped bio-bank. The findings will provide up-to-date information for clinicians and patients and inform the design and conduct of the EVERREST Clinical Trial: a phase I/IIa trial to assess the safety and efficacy of maternal vascular endothelial growth factor (VEGF) gene therapy in severe early onset FGR...
January 23, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28103875/effects-of-plasmodium-falciparum-infection-on-umbilical-artery-resistance-and-intrafetal-blood-flow-distribution-a-doppler-ultrasound-study-from-papua-new-guinea
#14
Maria Ome-Kaius, Stephan Karl, Regina Alice Wangnapi, John Walpe Bolnga, Glen Mola, Jane Walker, Ivo Mueller, Holger Werner Unger, Stephen John Rogerson
BACKGROUND: Doppler velocimetry studies of umbilical artery (UA) and middle cerebral artery (MCA) flow help to determine the presence and severity of fetal growth restriction. Increased UA resistance and reduced MCA pulsatility may indicate increased placental resistance and intrafetal blood flow redistribution. Malaria causes low birth weight and fetal growth restriction, but few studies have assessed its effects on uteroplacental and fetoplacental blood flow. METHODS: Colour-pulsed Doppler ultrasound was used to assess UA and MCA flow in 396 Papua New Guinean singleton fetuses...
January 19, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28091544/ultrasound-prediction-of-abnormal-infant-development-in-hypertensive-pregnant-women-in-the-second-and-third-trimester
#15
Guofang Shen, Yajuan Huang, Lixin Jiang, Jinghong Gu, Yaxin Wang, Bing Hu
The objective was to assess the sensitivities and accuracies of Doppler ultrasound parameters in the second and third trimester of hypertensive pregnancies in determining perinatal outcomes. 1,054 pregnancies were retrospectively categorized into three groups (healthy pregnancies (HP, n = 988), pregnancies of hypertensive women (HypP, n = 30) and high-risk hypertension pregnancies (HRHypP, n = 36), depending on gestational hypertension as well as fetal birth weights and pregnancy outcomes. Systolic/diastolic ratio (S/D), resistance index (RI), pulsatility index (PI) of the bilateral uterine artery, umbilical artery and vein as well as venous flow velocity data were monitored by Doppler ultrasound...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28087423/is-middle-cerebral-artery-doppler-related-to-neonatal-and-2-year-infant-outcome-in-early-fetal-growth-restriction
#16
Tamara Stampalija, Birgit Arabin, Hans Wolf, Caterina M Bilardo, Christoph Lees
BACKGROUND: Reduced fetal middle cerebral artery Doppler impedance is associated with hypoxemia in fetal growth restriction. It remains unclear as to whether this finding could be useful in timing delivery, especially in the third trimester. In this regard there is a paucity of evidence from prospective studies. OBJECTIVES: The aim of this study was to determine whether there is an association between middle cerebral artery Doppler impedance and its ratio with the umbilical artery in relation to neonatal and 2 year infant outcome in early fetal growth restriction (26(+0)-31(+6) weeks of gestation)...
January 10, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28079791/a-possible-new-approach-in-the-prediction-of-late-gestational-hypertension-the-role-of-the-fetal-aortic-intima-media-thickness
#17
Silvia Visentin, Ambrogio P Londero, Martina Camerin, Enrico Grisan, Erich Cosmi
The aim was to determine the predictive role of combined screening for late-onset gestational hypertension by fetal ultrasound measurements, third trimester uterine arteries (UtAs) Doppler imaging, and maternal history. This prospective study on singleton pregnancies was conducted at the tertiary center of Maternal and Fetal Medicine of the University of Padua during the period between January 2012 and December 2014. Ultrasound examination (fetal biometry, fetal wellbeing, maternal Doppler study, fetal abdominal aorta intima-media thickness [aIMT], and fetal kidney volumes), clinical data (mother age, prepregnancy body mass index [BMI], and parity), and pregnancy outcomes were collected...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28076590/effect-of-maternal-exercises-on-biophysical-fetal-and-maternal-parameters-a-transversal-study
#18
Caroline Mombaque Dos Santos, Wendel Mombaque Dos Santos, Francisco Maximiliano Pancich Gallarreta, Camila Pigatto, Luiz Osório Cruz Portela, Edson Nunes de Morais
Objective: To evaluate the acute effects of maternal and fetal hemodynamic responses in pregnant women submitted to fetal Doppler and an aerobic physical exercise test according to the degree of effort during the activity and the impact on the well-being. Methods: Transversal study with low risk pregnant women, obtained by convenience sample with gestational age between 26 to 34 weeks. The participants carry out a progressive exercise test. Results: After the exercise session, reduced resistance (p=0...
October 2016: Einstein
https://www.readbyqxmd.com/read/28068596/evaluation-of-the-effectiveness-of-low-dose-aspirin-and-omega-3-in-treatment-of-asymmetrically-intrauterine-growth-restriction-a-randomized-clinical-trial
#19
Mohammed K Ali, Maggy E Amin, Ahmed F Amin, Diaa Eldeen M Abd El Aal
OBJECTIVE: To test the effect of aspirin and omega 3 on fetal weight as well as feto-maternal blood flow in asymmetrical intrauterine growth restriction (IUGR). STUDY DESIGN: This study is a clinically registered (NCT02696577), open, parallel, randomized controlled trial, conducted at Assiut Woman's Health Hospital, Egypt including 80 pregnant women (28-30 weeks) with IUGR. They were randomized either to group I: aspirin or group II: aspirin plus omega 3. The primary outcome was the fetal weight after 6 weeks of treatment...
January 3, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28052317/prenatal-prediction-of-significant-intertwin-birthweight-discordance-using-standard-second-and-third-trimester-sonographic-parameters
#20
Mark P Hehir, Fionnuala M Breathnach, Jennifer L Hogan, Fionnuala M Mcauliffe, Michael P Geary, Sean Daly, John Higgins, Alyson Hunter, John J Morrison, Gerard Burke, Rhona Mahony, Patrick Dicker, Elizabeth Tully, Fergal D Malone
INTRODUCTION: To evaluate standard ultrasound-derived fetal biometric parameters in the prediction of clinically significant intertwin birthweight discordance defined as ≥18%. MATERIAL AND METHODS: This was a secondary analysis of a prospective cohort study of 1028 unselected twin pairs recruited over a two-year period. Dichorionic twins underwent two-weekly ultrasonographic surveillance from 24 weeks' gestation, with surveillance of monochorionic twins two-weekly from 16 weeks...
January 4, 2017: Acta Obstetricia et Gynecologica Scandinavica
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