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Umbilical artery Doppler

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https://www.readbyqxmd.com/read/29753694/physiological-adaptation-of-the-growth-restricted-fetus
#1
REVIEW
Karel Maršál
The growth-restricted fetus in utero is exposed to a hostile environment and suffers undernutrition and hypoxia. To cope with the stress, the fetus changes its physiological functions. These adaptive changes aid intrauterine survival; however, they can lead to permanent functional and structural changes that can contribute to the development of serious chronic diseases later in life. Epigenetic mechanisms are an important part of the pathophysiological processes behind this "developmental origin of adult diseases...
February 24, 2018: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/29742984/maternal-serum-endocan-concentration-in-pregnancies-complicated-by-intrauterine-growth-restriction
#2
Agata Szpera-Gozdziewicz, Katarzyna Kosicka, Tomasz Gozdziewicz, Mariola Krzyscin, Przemyslaw Wirstlein, Anna Siemiatkowska, Franciszek Glowka, Ewa Wender-Ozegowska, Grzegorz H Breborowicz
OBJECTIVES: Endocan plays a role in the development of vascular tissue in health and disease and is an indicator of endothelial cells activation and angiogenesis. Therefore, this study aimed to investigate the relationship between maternal endocan serum level and intrauterine growth restriction (IUGR) as well as ultrasound Doppler flow measurements indicating placental insufficiency. METHODS: This study included a group of women with IUGR (n = 37) and a group of healthy pregnant women (controls, n = 37)...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29740835/factors-associated-to-early-intrauterine-fetal-demise-after-laser-for-ttts-by-pre-operative-fetal-heart-and-doppler-ultrasound
#3
Amélie Delabaere, France Leduc, Quentin Reboul, Florent Fuchs, Sandrine Wavrant, Johanne Dubé, Jean-Claude Fouron, François Audibert
OBJECTIVE: To determine the prognostic value of fetal Doppler and echocardiographic parameters for intra-uterine fetal demise (IUFD) within 24 hours and within one week after laser coagulation in monochorionic pregnancies complicated by twin-twin transfusion syndrome (TTTS). METHOD: This retrospective study correlated the preoperative hemodynamic and echocardiography parameters to the outcome in fetuses with TTTS undergoing laser therapy. RESULTS: One hundred and twelve laser coagulations were performed between February 2006 and June 2015...
May 9, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29730664/fetal-biometry-and-doppler-study-for-the-assessment-of-perinatal-outcome-in-stage-i-late-onset-fetal-growth-restriction
#4
Cecilia Villalaín, Ignacio Herraiz, María Soledad Quezada, Paula Isabel Gómez-Arriaga, Enery Gómez-Montes, Alberto Galindo
OBJECTIVE: To compare perinatal outcomes on fetuses classified as stage I late-onset fetal growth restriction (FGR) depending on the estimated fetal weight (EFW) centile category and the fetal and maternal Doppler study. MATERIAL AND METHODS: Retrospective cohort study on 131 cases of stage I late-onset FGR (diagnosis ≥32+0 weeks), defined as: EFW < 3rd centile and normal Doppler (G1) or EFW < 10th centile and mean uterine artery pulsatility index (PI) > 95th centile (G2) or EFW < 10th centile and mild fetal Doppler alteration: umbilical artery PI > 95th centile, middle cerebral artery PI < 5th centile, or cerebroplacental ratio < 5th centile (G3)...
May 4, 2018: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/29728721/characterization-of-the-placenta-in-the-newborn-with-congenital-heart-disease-distinctions-based-on-type-of-cardiac-malformation
#5
Jack Rychik, Donna Goff, Eileen McKay, Antonio Mott, Zhiyun Tian, Daniel J Licht, J William Gaynor
The placenta is a complex organ that influences prenatal growth and development, and through fetal programming impacts postnatal health and well-being lifelong. Little information exists on placental pathology in the presence of congenital heart disease (CHD). Our objective is to characterize the placenta in CHD and investigate for distinctions based on type of malformation present. Placental pathology from singleton neonates prenatally diagnosed and delivered at > 37 weeks gestation was analyzed. Placental findings of absolute weight, placental weight-to-newborn birth weight ratio, chorangiosis, villus maturity, thrombosis, and infarction were recorded and analyzed based on four physiological categories of CHD: (1) single ventricle-aortic obstruction, (2) single ventricle-pulmonic obstruction, (3) two-ventricle anomalies, and (4) transposition of the great arteries (TGA)...
May 4, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29723486/doppler-ultrasound-can-be-used-to-monitor-umbilical-arterial-blood-flow-in-lightly-sedated-pigs-at-multiple-gestational-ages
#6
Claire Stenhouse, Peter Tennant, W Colin Duncan, Cheryl J Ashworth
Doppler ultrasound was performed under moderate sedation (ketamine and azaperone) for 30min to monitor umbilical arterial (UA) blood flow in one uterine horn of Large White×Landrace gilts (n=23) at Gestational Days (GD) 30, 45, 60 and 90. Gilts were scanned before they were killed to examine relationships between litter size, sex ratio and five UA parameters (peak systolic velocity (PSV), end diastolic velocity (EDV), A/B (PSV to EDV) ratio, fetal heart rate (FHR) and resistance index (RI)). In gilts in which scans were obtained from all fetuses in the scanned horn, relationships between UA parameters, and fetal weight and sex were examined...
May 4, 2018: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/29707395/fetal-sirenomelia-associated-with-an-abdominal-cyst-originating-from-a-saccular-cloaca
#7
Yui Kinjo, Hitoshi Masamoto, Hayase Nitta, Tadatsugu Kinjo, Tomoko Tamaki, Naoki Yoshimi, Yoichi Aoki
A 40-year-old pregnant woman presented with a fetal abdominal cyst and oligohydramnios. Color Doppler scan revealed a single blood vessel from the fetal aorta into a single umbilical artery. Severe oligohydramnios limited ultrasonographic evaluation of the fetal lower limbs, kidneys, or bladder. The pregnancy was terminated; the fetus showed fused lower limbs, bulging abdomen, and absent external genitalia and was diagnosed with type III sirenomelia. On autopsy, no normal bladder was observed, but duodenal atresia, anorectal atresia, and right renal agenesis were found...
2018: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29706899/development-of-the-human-placenta-and-fetal-heart-synergic-or-independent
#8
REVIEW
Graham J Burton, Eric Jauniaux
The placenta is the largest fetal organ, and toward the end of pregnancy the umbilical circulation receives at least 40% of the biventricular cardiac output. It is not surprising, therefore, that there are likely to be close haemodynamic links between the development of the placenta and the fetal heart. Development of the placenta is precocious, and in advance of that of the fetus. The placenta undergoes considerable remodeling at the end of the first trimester of pregnancy, and its vasculature is capable of adapting to environmental conditions and to variations in the blood supply received from the mother...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29704280/prediction-of-adverse-pregnancy-outcome-in-monochorionic-diamniotic-twin-pregnancies-complicated-by-selective-fetal-growth-restriction
#9
Caitriona Monaghan, Erkan Kalafat, Julia Binder, Baskaran Thilaganathan, Asma Khalil
OBJECTIVE: To identify key factors implicated in adverse perinatal outcome in monochorionic twin pregnancies complicated by selective fetal growth restriction. METHODS: This is a retrospective cohort study conducted in a single tertiary referral centre included all monochorionic diamniotic (MCDA) twin pregnancies complicated by selective fetal growth restriction (sFGR). The presence of co-existing twin to twin transfusion syndrome (TTTS) was noted. Fetal biometry and Doppler indices, including the umbilical artery (UA) and ductus venosus (DV), were recorded at the time of diagnosis...
April 28, 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29699435/fetal-cerebral-and-cardiac-hemodynamics-in-postdate-pregnancy
#10
Aysegul Ozel, Ebru Alici Davutoglu, Sule Yildirim, Riza Madazli
OBJECTIVE: We aimed to determine the fetal cerebro-placental Doppler indices and modified myocardial performance index (Mod-myocardial performance index (MPI)) in this homogenous group of postdated pregnancies. METHODS: A total of 92 singleton pregnant women were included in this prospective study. The study involved three groups; full term control (Group 1, n = 42, 39 0/7 to 40 6/7 week' gestation), late term (Group 2, n = 34, 41 0/7 to 41 6/7 week' gestation) and post term (Group 3, n = 16, ≥ 42 0/7 weeks' gestation)...
April 26, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29680082/no-197a-fetal-health-surveillance-antepartum-consensus-guideline
#11
Robert Liston, Diane Sawchuck, David Young
OBJECTIVE: This guideline provides new recommendations pertaining to the application and documentation of fetal surveillance in the antepartum period that will decrease the incidence of birth asphyxia while maintaining the lowest possible rate of obstetrical intervention. Pregnancies with and without risk factors for adverse perinatal outcomes are considered. This guideline presents an alternative classification system for antenatal fetal non-stress testing to what has been used previously...
April 2018: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/29669590/sex-differences-in-umbilical-artery-doppler-indices-a-longitudinal-study
#12
Christian Widnes, Kari Flo, Tom Wilsgaard, Torvid Kiserud, Ganesh Acharya
BACKGROUND: Sexual dimorphism in placental size and function has been described. Whether this influences the clinically important umbilical artery (UA) waveform remains controversial, although a few cross-sectional studies have shown sex differences in UA pulsatility index (PI). Therefore, we tested whether fetal sex influences the UA Doppler indices during the entire second half of pregnancy and aimed to establish sex-specific reference ranges for UA Doppler indices if needed. METHODS: Our main objective was to investigate gestational age-associated changes in UA Doppler indices during the second half of pregnancy and compare the values between male and female fetuses...
April 18, 2018: Biology of Sex Differences
https://www.readbyqxmd.com/read/29652653/role-of-foetal-umbilical-artery-doppler-on-prediction-of-adverse-pregnancy-outcomes-in-patients-with-systemic-lupus-erythematosus
#13
Zhongping Zhan, Yanfeng Zhan, Minxi Lao, Xiuyan Yang, Xiaodong Wang, Dongying Chen
OBJECTIVES: To investigate the foetal outcomes and examine the predictive value of the third-trimester umbilical artery Doppler in systemic lupus erythematosus (SLE) pregnancies. METHODS: Data of 180 pregnancies in 175 SLE patients from Jan 2007 to Jan 2017 were analysed retrospectively. Pulsatility index (PI), resistance index (RI), and systolic/diastolic ratio (S/D) of the umbilical artery flow velocity data were monitored by Doppler ultrasound. RESULTS: One or more composite adverse pregnancy outcomes (APOs) occurred in 46...
April 13, 2018: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29643616/labor-analgesia-in-parturients-of-fetal-growth-restriction-having-raised-umbilical-doppler-vascular-indices
#14
Sukhen Samanta, Kajal Jain, Neerja Bhardwaj, Vanita Jain, Preet Mohinder Singh, Sujay Samanta, Veenu Singla, Rini Saha
Background and Aims: Fetuses with abnormal umbilical blood flow are at a higher risk of adverse perinatal outcome than those with normal flow. Epidural analgesia (EA) has shown to decrease villous vascular resistance in preeclamptic women during labor. The present study evaluates the effects of epidural ropivacaine and intramuscular (IM) tramadol on Doppler blood flow in parturients with fetal growth restriction and raised umbilical artery (UmA) blood flow. Material and Methods: In this prospective nonrandomized comparative study, 36 term parturients with sonographic evidence of UmA systolic-diastolic (S-D) ratio ≥3 were enrolled...
January 2018: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/29607557/maternal-hemodynamics-fetal-biometry-and-dopplers-in-pregnancies-followed-up-for-suspected-fetal-growth-restriction
#15
Llinos A Roberts, Hua Zen Ling, Liona Poon, Kypros H Nicolaides, Nikos A Kametas
OBJECTIVES: To assess whether in a cohort of patients with small for gestational age (SGA) foetuses with estimated fetal weight ≤10th percentile, maternal hemodynamics, fetal biometry and Dopplers at presentation, can predict the subsequent development of abnormal fetal Dopplers or delivery with birthweight <3rd percentile. METHODS: The study population comprised of 86 singleton pregnancies with SGA fetuses presenting at a median gestational age of 32 (range 26-35) weeks...
April 1, 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29606482/planning-management-and-delivery-of-the-growth-restricted-fetus
#16
REVIEW
Ahmet A Baschat
A uniform approach to management of fetal growth restriction (FGR) improves outcome, prevents stillbirth, and allows appropriately timed delivery. An estimated fetal weight below the tenth percentile with coexisting abnormal umbilical artery (UA), middle cerebral artery (MCA), or cerebroplacental ratio Doppler index best identifies the small fetus requiring surveillance. Placental perfusion defects are more common earlier in gestation; accordingly, early-onset (≤32 weeks of gestation) and late-onset (>32 weeks) FGR differ in clinical phenotype...
March 1, 2018: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/29606022/associations-between-neural-injury-markers-of-intrauterine-growth-restricted-infants-and-neurodevelopment-at-2-years-of-age
#17
E Mazarico, E Llurba, L Cabero, O Sánchez, A Valls, A Martin-Ancel, D Cardenas, M D Gómez Roig
OBJECTIVES: The aim of this study was to evaluate the relationships between brain injury biomarkers in intrauterine growth-restricted (IUGR) infants (S100B and neuron-specific enolase (NSE)) and neurodevelopment at 2 years of age. METHODS: This prospective case-control study was a cooperative effort among Spanish Maternal and Child Health Network (Retic SAMID) hospitals. At inclusion, biometry for estimated fetal weight and feto-placental Doppler variables were measured for each infant...
March 31, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29587562/correlation-between-umbilical-arterial-ph-values-and-fetal-vertebral-artery-doppler-waveforms-at-the-beginning-of-the-second-stage-of-labor-a-pilot-prospective-study
#18
Danila Morano, Gennaro Scutiero, Piergiorgio Iannone, Giulia Nencini, Elena Mantovani, Antonio Farina, Pantaleo Greco
OBJECTIVE: The aim of this study was to evaluate the association between umbilical arterial pH and fetal vertebral artery Doppler velocimetry waveforms measured at the beginning of the second stage of labor in physiological term pregnancies. METHODS: This was a prospective cohort study of 250 pregnancies. The resistance index, pulsatility index and peak systolic velocity were measured. The relationship between the fetal Doppler and the umbilical arterial pH was evaluated...
March 27, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29582442/relationship-between-fetal-peak-systolic-velocity-in-middle-cerebral-artery-and-umbilical-blood-gas-values-and-hemoglobin-levels-in-diabetic-pregnant-women
#19
Mehmet S Kutuk, Mehmet Dolanbay, Ayse F Gokmen Karasu, Mahmut T Ozgun
PURPOSE: To assess the relationship between peak systolic velocity in the middle cerebral artery (MCA-PSV) and fetal hypoxia in diabetic pregnant women requiring insulin therapy. METHODS: The data of diabetic pregnant women using insulin who were followed in our departments were reviewed retrospectively. The relationships between MCA-PSV and umbilical cord pO2, pCO2, base deficit, hemoglobin, and birth weight were analyzed. RESULTS: A total of 120 cases were included in the final analysis...
March 26, 2018: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/29573498/correlation-between-fetoplacental-dopplers-and-cardiac-function-in-term-fetuses
#20
Amal A Alsolai, Larissa N Bligh, Ristan M Greer, Sailesh Kumar
OBJECTIVE: Redistribution of cardiac output is responsible for the "brain sparing" effect seen during periods of fetal stress. Our aim was to prospectively investigate the correlation between feto-placental Dopplers and cardiac function. METHODS: This prospective, observational study included normotensive women with appropriately grown, non-anomalous, singleton pregnancies. Participants underwent fortnightly ultrasounds from 36 weeks' gestation and intrapartum and neonatal outcomes were recorded...
March 24, 2018: Ultrasound in Obstetrics & Gynecology
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