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Neonatal imaging

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https://www.readbyqxmd.com/read/29048405/cooling-in-neonatal-hypoxic-ischemic-encephalopathy-practices-and-opinions-on-minimum-standards-in-the-state-of-california
#1
C J Wusthoff, C L Clark, H C Glass, T K Shimotake, J Schulman, S L Bonifacio
OBJECTIVE: Although hospitals increasingly offer therapeutic hypothermia (TH), there is variable implementation of related services. We assessed current practices and opinions regarding what services should be required of centers providing TH in California. STUDY DESIGN: We surveyed neonatal intensive care unit physicians statewide regarding practices and opinions about services related to TH. RESULTS: Of the 50 participating centers (47% response rate), 66% offer TH...
October 19, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29047053/mild-zellweger-syndrome-due-to-a-novel-pex6-mutation-correlation-between-clinical-phenotype-and-in-silico-prediction-of-variant-pathogenicity
#2
Małgorzata Rydzanicz, Teresa Joanna Stradomska, Elżbieta Jurkiewicz, Ewa Jamroz, Piotr Gasperowicz, Grażyna Kostrzewa, Rafał Płoski, Anna Tylki-Szymańska
Zellweger syndrome (ZS) is a consequence of a peroxisome biogenesis disorder (PBD) caused by the presence of a pathogenic mutation in one of the 13 genes from the PEX family. ZS is a severe multisystem condition characterized by neonatal appearance of symptoms and a shorter life. Here, we report a case of ZS with a mild phenotype, due to a novel PEX6 gene mutation. The patient presented subtle craniofacial dysmorphic features and slightly slower psychomotor development. At the age of 2 years, he was diagnosed with adrenal insufficiency, hypoacusis, and general deterioration...
October 18, 2017: Journal of Applied Genetics
https://www.readbyqxmd.com/read/29045850/comparison-of-conventional-2d-ultrasound-to-mr-imaging-for-prenatal-estimation-of-birth-weight-in-twin-pregnancy
#3
Caroline Kadji, Elisa Bevilacqua, Ivan Hurtado, Andrew Carlin, Mieke M Cannie, Jacques C Jani
BACKGROUND: During prenatal follow-up of twin pregnancies, accurate identification of birthweight and birthweight discordance is important in order to identify the high risk group and plan perinatal care. Unfortunately prenatal evaluation of birthweight discordance by 2-dimensional ultrasound (US) has been far from optimal. OBJECTIVE: To prospectively compare estimates of fetal weight based on 2-dimensional US (US-EFW) and MR imaging (MR-EFW) to actual birth weight in women carrying twin pregnancies...
October 15, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29041904/shift-in-the-function-of-netrin-1-from-axon-outgrowth-to-axon-branching-in-developing-cerebral-cortical-neurons
#4
Hideko Matsumoto, Masabumi Nagashima
BACKGROUND: Netrin-1, a multifunctional axon guidance cue, elicits axon outgrowth via one of its receptors deleted in colorectal cancer (DCC) in several types of neurons, including cerebral cortical neurons of embryonic mice. However, we and others have observed de novo formation of axon branches without axon outgrowth induced by netrin-1 in cortical culture of neonatal hamsters. These previous reports suggested the possibility that netrin-1 function might alter during development, which we here investigated using dissociated culture prepared from cerebral cortices of embryonic mice...
October 17, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/29039164/-screening-for-newborn-organic-aciduria-in-zhejiang-province-prevalence-outcome-and-follow-up
#5
Fang Hong, Xinwen Huang, Yu Zhang, Jianbin Yang, Fan Tong, Huaqing Mao, Xiaolei Huang, Xuelian Zhou, Rulai Yang, Zhengyan Zhao
OBJECTIVE: To analyze the results and follow up data of screening for newborn organic aciduria in Zhejiang province. METHODS: The results and follow-up data of 1 861 262 newborns from Zhejiang province undergoing screening for organic aciduria during January 2009 and December 2016 were retrospectively analyzed. The acylcarnitine spectrum in urine samples was detected by tandem mass spectrum (MS/MS) and the positive patients were confirmed by urine gas chromatography mass spectrometry and/or gene analysis...
May 25, 2017: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/29034490/hepatic-complications-of-umbilical-venous-catheters-in-the-neonatal-period-the-ultrasound-spectrum
#6
Betul Emine Derinkuyu, Oznur Leman Boyunaga, Cagri Damar, Sezin Unal, Ebru Ergenekon, Ayse Gul Alimli, Cigdem Oztunali, Canan Turkyilmaz
OBJECTIVES: Umbilical venous catheterization is commonly used in the neonatal period; however, it has some complications. In this study, we evaluated neonates who underwent umbilical venous catheterization and developed hepatic complications. Furthermore, we aimed to define all of the possible lesions and to clarify the imaging findings of umbilical venous catheter-induced hepatic injury. METHODS: Two hundred forty-four neonates who underwent umbilical venous catheterization between March 2013 and September 2015 in a single tertiary care referral center were included in this study...
October 16, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29030170/in-utero-negativization-of-zika-virus-in-a-case-with-serious-central-nervous-system-abnormalities
#7
Carlota Rodó, Anna Suy, Elena Sulleiro, Antoni Soriano-Arandes, Andrés Antón, Itziar García, Silvia Arévalo, Élida Vázquez, Ana Vázquez, Fernando de Ory, M Paz Sánchez-Seco, Carlos Rodrigo, Tomás Pumarola, Elena Carreras
OBJECTIVES: To describe a case of a pregnant woman with Zika virus infection and severe fetal brain malformations. METHODS: Serial ultrasound measurements, fetal magnetic resonance imaging results, laboratory and amniocentesis results, and perinatal outcomes of the pregnant woman and her neonate are reported. RESULTS: Zika virus tested positive in amniotic fluid at 19 weeks while being negative at delivery. The newborn did not meet the case definition of congenital Zika virus syndrome because neither the Zika virus RNA nor immunoglobulin M antibodies were detected; however, prenatal brain lesions were confirmed after birth...
October 10, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29026274/a-case-of-an-infant-with-congenital-combined-pituitary-hormone-deficiency-and-normalized-liver-histology-of-infantile-cholestasis-after-hormone-replacement-therapy
#8
Keisuke Wada, Hironori Kobayashi, Aisa Moriyama, Yasuhiro Haneda, Yuichi Mushimoto, Yuki Hasegawa, Kazumichi Onigata, Koji Kumori, Noriyoshi Ishikawa, Riruke Maruyama, Tsuyoshi Sogo, Lynne Murphy, Takeshi Taketani
Congenital combined pituitary hormone deficiency (CPHD) may present with cholestasis in the neonate or during early infancy. However, its precise mechanism is unknown. A 3-mo-old boy presented with cryptorchidism and hypoplastic scrotum after birth. Neonatal jaundice was noted but temporarily improved with phototherapy. Jaundice recurred at 2 mo of age. Elevated direct bilirubin (D-Bil) and liver dysfunction were found but cholangiography showed no signs of biliary atresia (BA). Liver biopsy findings showed giant cell formation of hepatocytes with hypoplastic bile ducts...
2017: Clinical Pediatric Endocrinology: Case Reports and Clinical Investigations: Official Journal of the Japanese Society for Pediatric Endocrinology
https://www.readbyqxmd.com/read/29021168/functional-ultrasound-imaging-of-brain-activity-in-human-newborns
#9
Charlie Demene, Jérome Baranger, Miguel Bernal, Catherine Delanoe, Stéphane Auvin, Valérie Biran, Marianne Alison, Jérome Mairesse, Elisabeth Harribaud, Mathieu Pernot, Mickael Tanter, Olivier Baud
Functional neuroimaging modalities are crucial for understanding brain function, but their clinical use is challenging. Recently, the use of ultrasonic plane waves transmitted at ultrafast frame rates was shown to allow for the spatiotemporal identification of brain activation through neurovascular coupling in rodents. Using a customized flexible and noninvasive headmount, we demonstrate in human neonates that real-time functional ultrasound imaging (fUSI) is feasible by combining simultaneous continuous video-electroencephalography (EEG) recording and ultrafast Doppler (UfD) imaging of the brain microvasculature...
October 11, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/29020825/the-yield-of-the-prenatal-work-up-in-intrauterine-growth-restriction-and-the-spectrum-of-fetal-abnormalities-detected-postnatally
#10
Rivka Sukenik-Halevy, Adi Katz, Rivka Regev, Ofer Markovitch, Reuven Sharony, Yael Ganor Paz, Tal Biron-Shental
OBJECTIVE: To evaluate the yield of work-up in intrauterine growth restriction (IUGR) pregnancies and their outcomes. MATERIALS AND METHODS: Retrospective data regarding prenatal work-up (serology, genetic testing and imaging), and neonatal outcomes of 198 IUGR pregnancies (estimated fetal weight < 10th percentile) were analyzed. RESULTS: IUGR was isolated in 72. Work-up performed in 158 (80%) cases was positive in 4 (2.5%). No abnormalities were detected in prenatal genetic testing...
October 11, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29020672/early-environmental-enrichment-enhances-abnormal-brain-connectivity-in-a-rabbit-model-of-intrauterine-growth-restriction
#11
Miriam Illa, Verónica Brito, Laura Pla, Elisenda Eixarch, Ariadna Arbat-Plana, Dafnis Batallé, Emma Muñoz-Moreno, Fatima Crispi, Esther Udina, Francesc Figueras, Silvia Ginés, Eduard Gratacós
INTRODUCTION: The structural correspondence of neurodevelopmental impairments related to intrauterine growth restriction (IUGR) that persists later in life remains elusive. Moreover, early postnatal stimulation strategies have been proposed to mitigate these effects. Long-term brain connectivity abnormalities in an IUGR rabbit model and the effects of early postnatal environmental enrichment (EE) were explored. MATERIALS AND METHODS: IUGR was surgically induced in one horn, whereas the contralateral one produced the controls...
October 12, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/29020614/gene-editing-in-rat-embryonic-stem-cells-to-produce-in%C3%A2-vitro-models-and-in%C3%A2-vivo-reporters
#12
Yaoyao Chen, Sonia Spitzer, Sylvia Agathou, Ragnhildur Thora Karadottir, Austin Smith
Rat embryonic stem cells (ESCs) offer the potential for sophisticated genome engineering in this valuable biomedical model species. However, germline transmission has been rare following conventional homologous recombination and clonal selection. Here, we used the CRISPR/Cas9 system to target genomic mutations and insertions. We first evaluated utility for directed mutagenesis and recovered clones with biallelic deletions in Lef1. Mutant cells exhibited reduced sensitivity to glycogen synthase kinase 3 inhibition during self-renewal...
October 10, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/29019760/mr-lymphangiography-in-children-technique-and-potential-applications
#13
Govind B Chavhan, Joao G Amaral, Michael Temple, Maxim Itkin
The lymphatic system, an important component of the circulatory system with essential physiologic functions, can be affected by various disease processes. There has been a delay in the development of effective imaging methods for the lymphatic system due to its small size, which limits visualization as well as introduction of contrast material. Traditionally, the lymphatic system has been imaged by injecting contrast material or radiotracers into the feet or hands. This is not sufficient for assessment of the central conducting lymphatics (CCLs) (such as the thoracic duct or the cisterna chyli)...
October 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29019757/pediatric-ovarian-torsion-spectrum-of-imaging-findings
#14
Akosua Sintim-Damoa, Anand Shyamcharan Majmudar, Harris L Cohen, Louis Swig Parvey
The accurate diagnosis of ovarian torsion is imperative, as loss of the ovary can have long-term consequences in terms of fertility. However, a nonspecific clinical presentation in conjunction with a highly variable imaging appearance makes the diagnosis of ovarian torsion challenging. This is complicated even further in the pediatric population, as these patients cannot always articulate their symptoms or provide an adequate medical history. Therefore, imaging has a critical role in the diagnosis of ovarian torsion in pediatric patients...
October 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29019755/interstitial-lung-disease-in-children-made-easier%C3%A2-well-almost
#15
Thomas R Semple, Michael T Ashworth, Catherine M Owens
Interstitial lung disease (ILD) in pediatric patients is different from that in adults, with a vast array of pathologic conditions unique to childhood, varied modes of presentation, and a different range of radiologic appearances. Although rare, childhood ILD (chILD) is associated with significant morbidity and mortality, most notably in conditions of disordered surfactant function, with respiratory failure in 100% of neonates with surfactant protein B dysfunction and 100% mortality without lung transplantation...
October 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28990589/which-anthropometric-measures-best-reflect-neonatal-adiposity
#16
L-W Chen, M-T Tint, M V Fortier, I M Aris, Lp-C Shek, K H Tan, S-Y Chan, P D Gluckman, Y-S Chong, K M Godfrey, V S Rajadurai, F Yap, M S Kramer, Y S Lee
BACKGROUND: Studying the determinants and the long-term consequences of fetal adipose accretion requires accurate assessment of neonatal body composition. In large epidemiological studies, in-depth body composition measurement methods are usually not feasible for cost and logistical reasons, and there is a need to identify anthropometric measures that adequately reflect neonatal adiposity. METHODS: In a multiethnic Asian mother-offspring cohort in Singapore, anthropometric measures (weight, length, abdominal circumference, skinfold thicknesses) were measured using standardized protocols in newborn infants, and anthropometric indices [weight/length, weight/length(2) (body mass index, BMI), weight/length(3) (ponderal index, PI)] derived...
October 9, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28989045/reappraisal-of-neonatal-greenstick-skull-fractures-caused-by-birth-injuries-comparison-of-3-dimensional-reconstructed-computed-tomography-and-simple-skull-x-rays
#17
Sung Min Cho, Hyun Gi Kim, Soo Han Yoon, Ki Hong Chang, Moon Sung Park, Yul-Hyun Park, Mi Sun Choi
OBJECT: The most common birth-associated head injuries during vaginal delivery are cephalhematomas and subgaleal hematomas, and cranial injuries are rarely encountered. The neonate cranium is soft and pliable, and greenstick skull fractures (GSFs) are expected to be more frequent than linear or depressed fractures, but are extremely difficult to detect by simple skull x-ray (SSXR), and as a result, no reports have been issued on this topic to date. Recent reports suggest that technological advances in 3-dimensional reconstructed computed tomography (3DCT) have successfully enhanced the diagnostic accuracy for cranial fractures...
October 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28988830/effects-of-neonatal-deafness-on-resting-state-functional-network-connectivity
#18
Daniel Stolzberg, Blake E Butler, Stephen G Lomber
Normal brain development depends on early sensory experience. Behavioral consequences of brain maturation in the absence of sensory input early in life are well documented. For example, experiments with mature, neonatally deaf human or animal subjects have revealed improved peripheral visual motion detection and spatial localization abilities. Such supranormal behavioral abilities in the nondeprived sensory modality are evidence of compensatory plasticity occurring in deprived brain regions at some point or throughout development...
October 6, 2017: NeuroImage
https://www.readbyqxmd.com/read/28987714/diagnosis-and-management-of-pyriform-sinus-cyst-in-neonates-16-year-experience-at-a-single-center
#19
Haitao Zhu, Xianmin Xiao, Shan Zheng, Chun Shen
BACKGROUND/PURPOSE: The purpose of this study was to review our experience in diagnosing and managing neonatal pyriform sinus cyst (PSC) and to assess its outcomes. METHODS: We retrospectively reviewed 38 cases of neonatal PSC from 2001 to 2016. Clinical features, PSC diagnosis, treatment, and outcomes were analyzed. RESULTS: Cervical masses were detected prenatally in 8 patients (21.1%). Neck cyst and respiratory distress were frequent symptoms among these patients...
September 2, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28986615/perforations-associated-with-peripherally-inserted-central-catheters-in-a-neonatal-population
#20
Andrew J Sertic, Bairbre L Connolly, Michael J Temple, Dimitri A Parra, Joao G Amaral, Kyong-Soon Lee
BACKGROUND: Peripherally inserted central catheters (PICCs) are increasingly used in neonates but perforations can result in devastating complications such as pericardial and pleural effusions. Identifying risk factors may guide surveillance and reduce morbidity and mortality. OBJECTIVE: To determine the risk factors for PICC perforation in neonates. MATERIALS AND METHODS: Retrospective case:control (1:2) study of neonates admitted between 2004-2014...
October 6, 2017: Pediatric Radiology
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