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Fetal discordance

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https://www.readbyqxmd.com/read/28484895/diagnosis-of-umbilical-cord-entanglement-in-a-monochorionic-diamniotic-twin-pregnancy-with-spontaneous-septostomy-of-the-dividing-membranes-using-dual-gate-doppler-imaging
#1
Ayumu Ito, Masahiko Nakata, Ayako Oji, Mayumi Takano, Nahomi Umemura, Sumito Nagasaki, Toshimitsu Maemura, Mineto Morita
Umbilical cord entanglement is the leading cause of fetal mortality in monoamniotic twin pregnancies and a pseudo monoamniotic environment. Published methods for detecting this complication include color Doppler and pulsed Doppler sonography; however, no method provides an absolute diagnosis. In this case, we report the diagnosis of umbilical cord entanglement using dual-gate Doppler imaging. A 35-year-old woman was referred to our hospital at 28 weeks of gestation for prenatal management because of diagnosis of a monochorionic diamniotic twin pregnancy with spontaneous septostomy of the dividing membranes...
May 8, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28453870/clinically-relevant-discordances-identified-after-tertiary-reassessment-of-fetuses-with-isolated-congenital-diaphragmatic-hernia
#2
Elisa Done, Leonardo Gucciardo, Tim Van Mieghem, Koen Devriendt, Karel Allegaert, Paul Brady, Roland Devlieger, Luc De Catte, Liesbeth Lewi, Jan Deprest
OBJECTIVE: Fetoscopic Endoluminal Tracheal Occlusion (FETO) may improve outcome of severe isolated Congenital Diaphragmatic Hernia (iCDH). We aimed to identify any discrepancy between initial assessment at the referring hospital and the evaluation at the fetal surgery center, and to document parental decisions following counseling for fetal surgery. DESIGN: Single centre retrospective study on patients with presumed iCDH either referred for assessment and counseling or referred for fetal surgery...
April 28, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28441900/placental-nfe2l2-is-discordantly-activated-in-monochorionic-twins-with-selective-intrauterine-growth-restriction-and-possibly-regulated-by-hypoxia
#3
Jing Wu, Zhiming He, Yu Gao, Guanglan Zhang, Xuan Huang, Qun Fang
INTRODUCTION: Nuclear factor, erythroid 2 like 2 (NFE2L2) is an important transcription factor that protects cells from oxidative stress (OS). NFE2L2 deficiency in placentas is associated with pregnancy complications. We have demonstrated that elevated OS existed in placental shares of the smaller fetus in selective intrauterine growth restriction (sIUGR); however, the role of NFE2L2 in the development of sIUGR remains unknown. In this study, we examined the levels of NFE2L2 and heme oxygenase 1 (HMOX1), a major antioxidant regulated by NFE2L2, in sIUGR placentas...
April 25, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28421145/a-framework-for-describing-the-influence-of-service-organisation-and-delivery-on-participation-in-fetal-anomaly-screening-in-england
#4
Hyacinth O Ukuhor, Janet Hirst, S José Closs, William J Montelpare
Objective. The aim of this research was to explore the influence of service organisation and delivery on providers and users' interactions and decision-making in the context of Down's syndrome screening. Methods. A qualitative descriptive study involving online interviews conducted with a purposive sample of 34 community midwives, 35 pregnant women, and 15 partners from two maternity services in different health districts in England. Data were analysed using a combination of grounded theory principles and content analysis and a framework was developed...
2017: Journal of Pregnancy
https://www.readbyqxmd.com/read/28382695/discordant-non-invasive-prenatal-testing-nipt-a-systematic-review
#5
REVIEW
Tanja Schlaikjaer Hartwig, Louise Ambye, Steen Sørensen, Finn Stener Jørgensen
With a high sensitivity and specificity, NIPT is an incomparable screening test for fetal aneuploidy. However, the method is rather newly introduced and experiences with discordant results are few. We did a systematic review of literature reporting details of false positive and false negative NIPT results. Discordant sex chromosome results were not included. We identified 22 studies reporting case details. In total 206 discordant cases were included, of which 88% were false positive and 12% false negative. Details on maternal age, gestational age, platform/company, Z-score, fetal fraction, results and explanation were specified...
April 5, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28355685/-clinical-outcome-and-placenta-characteristics-of-spontaneous-twin-anemia-polycythemia-sequence
#6
X J Wang, L Y Li, Y Wei, Y Y Zhao, P B Yuan
Objective: To investigate the clinical outcome and placental characteristics of spontaneous twin anemia-polycythemia sequence (sTAPS). Methods: Twelve cases with sTAPS delivered in Peking University Third Hospital from May 2013 to August 2016. The data of ultrasound characteristics, gestational age at delivery, and 1 minute Apgar score were analyzed, retrospectively. Placental superficial vascular anastomoses, placental territory discordance and the ratio of umbilical cords insertion distance to the longest placental diameter were also analyzed...
March 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/28348386/perinatal-risk-factors-in-tourette-s-and-chronic-tic-disorders-a-total-population-sibling-comparison-study
#7
G Brander, M Rydell, R Kuja-Halkola, L Fernández de la Cruz, P Lichtenstein, E Serlachius, C Rück, C Almqvist, B M D'Onofrio, H Larsson, D Mataix-Cols
Adverse perinatal events may increase the risk of Tourette's and chronic tic disorders (TD/CTD), but previous studies have been unable to control for unmeasured environmental and genetic confounding. We aimed to prospectively investigate potential perinatal risk factors for TD/CTD, taking unmeasured factors shared between full siblings into account. A population-based birth cohort, consisting of all singletons born in Sweden in 1973-2003, was followed until December 2013. A total of 3 026 861 individuals were identified, 5597 of which had a registered TD/CTD diagnosis...
March 28, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28314387/twin-pregnancy-complicated-by-esophageal-atresia-duodenal-atresia-gastric-perforation-and-hypoplastic-left-heart-structures-in-one-twin-a-case-report-and-review-of-the-literature
#8
Mohamad K Abou Chaar, Mariana L Meyers, Bethany D Tucker, Henry L Galan, Kenneth W Liechty, Timothy M Crombleholme, Ahmed I Marwan
BACKGROUND: The antenatal diagnosis of a combined esophageal atresia without tracheoesophageal fistula and duodenal atresia with or without gastric perforation is a rare occurrence. These diagnoses are difficult and can be suspected on ultrasound by nonspecific findings including a small stomach and polyhydramnios. Fetal magnetic resonance imaging adds significant anatomical detail and can aid in the diagnosis of these complicated cases. Upon an extensive literature review, there are no reports documenting these combined findings in a twin pregnancy...
March 18, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28303777/placental-up-regulation-of-leptin-and-arms2-is-associated-with-growth-discordance-in-monochorionic-diamniotic-twin-pregnancies
#9
Luming Sun, Jia Zhou, Kai Wang, Jian Wang, Ling Shang, Jianguang Zhang, Junqing Wu, David S Cram
Fetal growth discordance is a relatively common complication of monochorionic diamniotic (MCDA) twin pregnancies and is caused by a combination of maternal and placental factors. The aim of the study was to survey placental gene expression patterns and identify genes associated with growth discordance. Clinical samples comprised eight growth-discordant MCDA twin placentas (31+3-34+4 weeks gestational age) and six growth-concordant twin placentas (31+2-37 weeks gestational age). Gene expression libraries were constructed from placental biopsy samples and analyzed by RNA-sequencing...
April 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28277911/fetal-growth-pathology-score-a-novel-ultrasound-parameter-for-individualized-assessment-of-third-trimester-growth-abnormalities
#10
Russell L Deter, Wesley Lee, John C P Kingdom, Roberto Romero
OBJECTIVES: To study fetal growth in pregnancies at risk for growth restriction (GR) using, for the first time, the fetal growth pathology score (FGPS1). METHODS: A retrospective cohort study of GR was carried out in 184 selected SGA singletons using a novel, composite measure of growth abnormalities termed the FGPS1. Serial fetal biometry was used to establish second trimester Rossavik size models and determine FGPS1 values prior to delivery. FGPS1 data were compared to neonatal growth outcomes assessed using growth potential realization index (GPRI) values (average negative pathological GPRI (av - pGPRI))...
March 20, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28251823/comparative-morphology-of-the-penis-and-clitoris-in-four-species-of-moles-talpidae
#11
Adriane Watkins Sinclair, Stephen Glickman, Kenneth Catania, Akio Shinohara, Lawrence Baskin, Gerald R Cunha
The penile and clitoral anatomy of four species of Talpid moles (broad-footed, star-nosed, hairy-tailed, and Japanese shrew moles) were investigated to define penile and clitoral anatomy and to examine the relationship of the clitoral anatomy with the presence or absence of ovotestes. The ovotestis contains ovarian tissue and glandular tissue resembling fetal testicular tissue and can produce androgens. The ovotestis is present in star-nosed and hairy-tailed moles, but not in broad-footed and Japanese shrew moles...
May 2017: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28205414/avoidance-of-maternal-cell-contamination-and-overgrowth-in-isolating-fetal-chorionic-villi-mesenchymal-stem-cells-from-human-term-placenta
#12
Varda S Sardesai, Abbas Shafiee, Nicholas M Fisk, Rebecca A Pelekanos
Human placenta is rich in mesenchymal stem/stromal cells (MSC), with their origin widely presumed fetal. Cultured placental MSCs are confounded by a high frequency of maternal cell contamination. Our recent systematic review concluded that only a small minority of placental MSC publications report fetal/maternal origin, and failed to discern a specific methodology for isolation of fetal MSC from term villi. We determined isolation conditions to yield fetal and separately maternal MSC during ex vivo expansion from human term placenta...
April 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28163434/aortic-and-pulmonary-artery-calcification-an-unusual-manifestation-of-twin-to-twin-transfusion-syndrome
#13
Sumitra Venkatesh, J Sanyukta, S Jain, S S Prabhu, S Kulkarni
Twin-to-twin transfusion syndrome (TTTS) at times complicates monochorionic twin gestations, resulting in conditions ranging from discordant sizes to fetal demise of one baby. Various types of cardiac defects have been described in the recipient twin of this syndrome. Isolated great artery calcification, i.e. aortic and pulmonary artery calcification is one such uncommon condition associated with TTTS. Calcification of the walls of great vessels may be due to chronic vascular injury sustained as a result of circulatory volume overload in the recipient twin...
January 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28105960/accuracy-of-prenatal-ultrasound-in-detecting-growth-abnormalities-in-triplets-a-retrospective-cohort-study
#14
Cameron Sklar, Maryna Yaskina, Sue Ross, Kentia Naud
Significant management decisions in triplet pregnancies are made based mainly on ultrasound measurements of fetal growth, although there is a paucity of data examining the accuracy of fetal weight measurements in these gestations. To evaluate accuracy of prenatal ultrasound to diagnose growth abnormalities (intrauterine growth restriction, severe growth discordance) in triplet pregnancies, a retrospective cohort study of 78 triplet pregnancies (234 fetuses) delivered at a single tertiary hospital from January 2004 to May 2015 was performed...
February 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28052317/prenatal-prediction-of-significant-intertwin-birthweight-discordance-using-standard-second-and-third-trimester-sonographic-parameters
#15
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: Our study aim was 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...
April 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/27994991/dynamics-of-a-pregnancy-when-two-become-four-a-case-report-and-literature-review
#16
Murid Javed, Nareman Altorairi, Hamad Alsufyan
The incidence of pregnancies with multiple gestational sacs has increased with the use of assisted reproductive technology because more than one embryo is frequently transferred. The splitting of one or more embryos further complicates the pregnancy. Some of these complications include intrauterine fetal death, growth restriction, discordant birth weight, and preterm delivery. Monozygotic twins suffer from a few unique complications including twin-twin transfusion syndrome, twin reversed arterial perfusion sequence, and twin anemia-polycythemia sequence...
November 11, 2016: Curēus
https://www.readbyqxmd.com/read/27908601/corrigendum-to-a-pregnancy-with-discordant-fetal-and-placental-chromosome-18-aneuploidies-revealed-by-invasive-and-noninvasive-prenatal-diagnosis-reproductive-biomedicine-online-29-2014-136-139
#17
Chong Chen, David S Cram, Fanni Xie, Ping Wang, Xueqin Xu, Huanzheng Li, Zhuo Song, Di Chen, Jianguang Zhang, Shaohua Tang
No abstract text is available yet for this article.
February 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/27859836/outcome-in-monochorionic-twin-pregnancies-with-selective-intrauterine-growth-restriction-according-to-the-umbilical-artery-doppler-pattern-of-the-smaller-twin-a-systematic-review-and-meta-analysis
#18
REVIEW
Danilo Buca, Giorgio Pagani, Giuseppe Rizzo, Alessandra Familiari, Maria Elena Flacco, Lamberto Manzoli, Marco Liberati, Francesco Fanfani, Giovanni Scambia, Francesco D'Antonio
OBJECTIVE: To explore the outcome of monochorionic (MC) twin pregnancies affected by selective intra-uterine growth restriction (sIUGR) according to the umbilical artery Doppler pattern of the smaller twin. METHODS: Medline, Embase, Cinhal and ClinicalTrials.gov databases (2000-2016) were searched. sIUGR was defined as the presence of one twin with estimated fetal weight and/or abdominal circumference less than 10(th) or 5(th) percentile and classified according to the umbilical artery Doppler flow pattern of the smaller twin (type I: persistently positive, type II: persistently absent/reversed, type III: intermittently absent/reversed)...
November 18, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27854393/birth-weight-in-live-births-and-stillbirths
#19
L C Y Poon, M Y Tan, G Yerlikaya, A Syngelaki, K H Nicolaides
OBJECTIVE: To establish a normal range of birth weights for gestational age at delivery and to compare the proportion of live births and stillbirths that are classified as small-for-gestational age (SGA) according to our normal range vs that of the INTERGROWTH-21(st) standard. METHODS: The study population comprised 113 019 live births and 437 (0.4%) stillbirths. The inclusion criterion for establishing a normal range of birth weights for gestational age was the live birth of a phenotypically normal neonate ≥ 24 weeks' gestation and the exclusion criteria were smoking and prepregnancy hypertension, diabetes mellitus, systemic lupus erythematosus or antiphospholipid syndrome, pre-eclampsia, gestational hypertension, gestational diabetes mellitus or iatrogenic preterm birth for fetal growth restriction in the current pregnancy...
November 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27848393/comparison-of-rat-and-rabbit-embryo-fetal-developmental-toxicity-data-for-379-pharmaceuticals-on-the-nature-and-severity-of-developmental-effects
#20
Peter T Theunissen, Sonja Beken, Bruce K Beyer, William J Breslin, Gregg D Cappon, Connie L Chen, Gary Chmielewski, Luc De Schaepdrijver, Brian Enright, Jennifer E Foreman, Wafa Harrouk, Kok-Wah Hew, Alan M Hoberman, Julia Y Hui, Thomas B Knudsen, Susan B Laffan, Susan L Makris, Matt Martin, Mary Ellen McNerney, Christine L Siezen, Dinesh J Stanislaus, Jane Stewart, Kary E Thompson, Belen Tornesi, Jan Willem Van der Laan, Gerhard F Weinbauer, Sandra Wood, Aldert H Piersma
Regulatory non-clinical safety testing of human pharmaceuticals typically requires embryo-fetal developmental toxicity (EFDT) testing in two species (one rodent and one non-rodent). The question has been raised whether under some conditions EFDT testing could be limited to one species, or whether the testing in a second species could be decided on a case-by-case basis. As part of a consortium initiative, we built and queried a database of 379 compounds with EFDT studies (in both rat and rabbit animal models) conducted for marketed and non-marketed pharmaceuticals for their potential for adverse developmental and maternal outcomes, including EFDT incidence and the nature and severity of adverse findings...
November 2016: Critical Reviews in Toxicology
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