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https://www.readbyqxmd.com/read/28329257/lessons-learned-at-the-epicenter-of-brazil-s-congenital-zika-epidemic-evidence-from-87-confirmed-cases
#1
Jucille do Amaral Meneses, Ana Catarina Ishigami, Luisa Medeiros de Mello, Luciano Lira de Albuquerque, Carlos Alexandre Antunes de Brito, Marli Tenório Cordeiro, Lindomar José Pena
Congenital Zika virus infection has stimulated great international concern. A prospective case series of 87 infants with laboratory-confirmed congenital Zika syndrome (CZS) at the epicenter of the Brazilian Zika epidemic in Pernambuco state is presented. Mothers were interviewed for symptoms of possible Zika virus (ZIKV) infection during pregnancy and fetal ultrasounds were obtained. Infant cerebrospinal fluid (CSF) samples were tested for ZIKV specific antibodies and sera were screened for other congenital infections...
February 24, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28329054/whole-heart-detailed-and-quantitative-anatomy-myofibre-structure-and-vasculature-from-x-ray-phase-contrast-synchrotron-radiation-based-micro-computed-tomography
#2
Anna Gonzalez-Tendero, Chong Zhang, Vedrana Balicevic, Rubén Cárdenes, Sven Loncaric, Constantine Butakoff, Bruno Paun, Anne Bonnin, Patricia Garcia-Cañadilla, Emma Muñoz-Moreno, Eduard Gratacós, Fatima Crispi, Bart Bijnens
Background: While individual cardiac myocytes only have a limited ability to shorten, the heart efficiently pumps a large volume-fraction thanks to a cell organization in a complex 3D fibre structure. Subclinical subtle cardiac structural remodelling is often present before symptoms arise. Understanding and early detection of these subtle changes is crucial for diagnosis and prevention. Additionally, personalized computational modelling requires knowledge on the multi-scale structure of the whole heart and vessels...
March 15, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28328593/fetal-monitor-as-precordial-doppler-in-neuroanesthesia
#3
John R Cormack, Anastasia Mellios, Desmond McGlade
No abstract text is available yet for this article.
March 15, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28328535/the-assessment-of-labor-a-brief-history
#4
Wayne R Cohen, Emanuel A Friedman
In the 1930s, investigators in the US, Germany and Switzerland made the first attempts to quantify the course of labor in a clinically meaningful way. They emphasized the rupture of membranes as a pivotal event governing labor progress. Attention was also placed on the total number of contractions as a guide to normality. Beginning in the 1950s, Friedman determined that changes in cervical dilatation and fetal station over time were the most useful parameters for the assessment of labor progress. He showed all normal labors had similar patterns of dilatation and descent, differing only in the durations and slopes of their component parts...
March 22, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28328414/antenatal-fetal-surveillance-multiple-choice-answers-for-vol-39
#5
(no author information available yet)
No abstract text is available yet for this article.
February 2017: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28328259/follow-up-study-on-fetal-ct-radiation-dose-in-japan-validating-the-decrease-in-radiation-dose
#6
Osamu Miyazaki, Hideaki Sawai, Takahiro Yamada, Jun Murotsuki, Gen Nishimura
OBJECTIVE: In 2011, we collected data on fetal CT radiation dose to determine the diagnostic reference level (DRL); however, continuous evaluation of the DRL is necessary. The hypothesis of this study is that the fetal CT radiation dose has decreased, and we predict a widespread use of iterative reconstruction (IR). We also predict that the national decrease in exposure is because of the DRL reported as a result of the previous national study. MATERIALS AND METHODS: Various testing protocols from each site were summarized as part of the study results...
April 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28328132/revised-estimates-of-the-risk-of-fetal-loss-following-a-prenatal-diagnosis-of-trisomy-13-or-trisomy-18
#7
Alana Cavadino, Joan K Morris
Edwards syndrome (trisomy 18) and Patau syndrome (trisomy 13) both have high natural fetal loss rates. The aim of this study was to provide estimates of these fetal loss rates by single gestational week of age using data from the National Down Syndrome Cytogenetic Register. Data from all pregnancies with Edwards or Patau syndrome that were prenatally detected in England and Wales from 2004 to 2014 was analyzed using Kaplan-Meier survival estimates. Pregnancies were entered into the analysis at the time of gestation at diagnosis, and were considered "under observation" until the gestation at outcome...
April 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28328129/the-phenotypic-spectrum-of-congenital-zika-syndrome
#8
Miguel Del Campo, Ian M L Feitosa, Erlane M Ribeiro, Dafne D G Horovitz, André L S Pessoa, Giovanny V A França, Alfredo García-Alix, Maria J R Doriqui, Hector Y C Wanderley, Maria V T Sanseverino, João I C F Neri, João M Pina-Neto, Emerson S Santos, Islane Verçosa, Mirlene C S P Cernach, Paula F V Medeiros, Saile C Kerbage, André A Silva, Vanessa van der Linden, Celina M T Martelli, Marli T Cordeiro, Rafael Dhalia, Fernanda S L Vianna, Cesar G Victora, Denise P Cavalcanti, Lavinia Schuler-Faccini
In October 2015, Zika virus (ZIKV) outbreak the Brazilian Ministry of Health (MoH). In response, the Brazilian Society of Medical Genetics established a task force (SBGM-ZETF) to study the phenotype of infants born with microcephaly due to ZIKV congenital infection and delineate the phenotypic spectrum of this newly recognized teratogen. This study was based on the clinical evaluation and neuroimaging of 83 infants born during the period from July, 2015 to March, 2016 and registered by the SBGM-ZETF. All 83 infants had significant findings on neuroimaging consistent with ZIKV congenital infection and 12 had confirmed ZIKV IgM in CSF...
April 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28327735/reverse-micelle-based-water-soluble-nanoparticles-for-simultaneous-bioimaging-and-drug-delivery
#9
Ying Chen, Yong Liu, Yongchao Yao, Shiyong Zhang, Zhongwei Gu
With special confined water pools, reverse micelles (RMs) have shown potential for a wide range of applications. However, the inherent water-insolubility of RMs hinders their further application prospects, especially for applications related to biology. We recently reported the first successful transfer of RMs from organic media to an aqueous phase without changing the smart water pools by the hydrolysis of an arm-cleavable interfacial cross-linked reverse micelles. Herein, we employed another elaborate amphiphile 1 to construct new acrylamide-based cross-linked water-soluble nanoparticles (ACW-NPs) under much gentler conditions...
March 22, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28327604/chymase-producing-cells-of-the-innate-immune-system-are-required-for-decidual-vascular-remodeling-and-fetal-growth
#10
Nicole Meyer, Katja Woidacki, Martin Knöfler, Gudrun Meinhardt, Désirée Nowak, Philipp Velicky, Jürgen Pollheimer, Ana C Zenclussen
Intrauterine growth restriction (IUGR) is caused by insufficient remodeling of spiral arteries (SAs). The mechanism underlying the relevance of natural killer cells (NKs) and mast cells (MCs) for SA remodeling and its effects on pregnancy outcome are not well understood. We show that NK depletion arrested SA remodeling without affecting pregnancy. MC depletion resulted in abnormally remodeled SAs and IUGR. Combined absence of NKs and MCs substantially affected SA remodeling and impaired fetal growth. We found that α-chymase mast cell protease (Mcpt) 5 mediates apoptosis of uterine smooth muscle cells, a key feature of SA remodeling...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28327433/sonographic-prediction-of-outcome-of-vacuum-deliveries-a-multicenter-prospective-cohort-study
#11
Birgitte H Kahrs, Sana Usman, Tullio Ghi, Aly Youssef, Erik A Torkildsen, Elsa Lindtjørn, Tilde B Østborg, Sigurlaug Benediktsdottir, Lis Brooks, Lotte Harmsen, Pål R Romundstad, Kjell Å Salvesen, Christoph C Lees, Torbjørn M Eggebø
BACKGROUND: Safe management of the second stage of labor is of great importance. Unnecessary interventions should be avoided and correct timing of interventions focused. Ultrasound assessment of fetal position and station has a potential to improve the precision in diagnosing and managing prolonged or arrested labors. The decision to perform vacuum delivery is traditionally based on subjective assessment by digital vaginal examination and clinical expertise and there is currently no method of objectively quantifying the likelihood of successful delivery...
March 18, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28327211/reduced-fetal-vitamin-d-status-by-maternal-undernutrition-during-discrete-gestational-windows-in-sheep
#12
J K Cleal, M R Hargreaves, K R Poore, J C Y Tang, W D Fraser, M A Hanson, L R Green
Placental transport of vitamin D and other nutrients (e.g. amino acids, fats and glucose) to the fetus is sensitive to maternal and fetal nutritional cues. We studied the effect of maternal calorific restriction on fetal vitamin D status and the placental expression of genes for nutrient transport [aromatic T-type amino acid transporter-1 (TAT-1); triglyceride hydrolase/lipoprotein uptake facilitator lipoprotein lipase (LPL)] and vitamin D homeostasis [CYP27B1; vitamin D receptor (VDR)], and their association with markers of fetal cardiovascular function and skeletal muscle growth...
March 22, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28326963/the-stillbirth-classification-system-for-the-safe-passage-study
#13
Theonia K Boyd, Colleen A Wright, Hein J Odendaal, Amy J Elliott, Mary Ann Sens, Rebecca D Folkerth, Drucilla J Roberts, Hannah C Kinney
Objective Describe the classification system for assigning the cause of stillbirth in the Safe Passage Study, an international, multi-institutional, prospective analysis conducted by the NIAAA/NICHD-funded Prenatal Alcohol in SIDS and Stillbirth (PASS) Research Network. The study mission is to determine the role of prenatal alcohol and/or cigarette smoke exposure in adverse pregnancy outcomes, including stillbirth, in a high-risk cohort of 12,000 maternal/fetal dyads. Methods The PASS Network classification system is based upon 5 "sites of origin" for cause of stillbirth, further subdivided into mechanism subcategories; both are employed to assign an ultimate cause of death...
March 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28326962/intrauterine-fetal-death-with-vanishing-gastroschisis-and-post-mortem-examination-findings
#14
Alexandra Frances Jolley, Elizabeth Jane Beare, Jeremy Granger, Catherine Lucy Cord-Udy, Peter Muller, Lynette Moore
We present a severe case of vanishing gastroschisis resulting in intrauterine death with post mortem examination findings. Gastroschisis is defined as a full thickness paraumbilical abdominal wall defect associated with evisceration of fetal intestine. It is almost always right-sided. Vanishing gastroschisis is an extremely rare form of gastroschisis that results in short bowel syndrome due to exteriorized bowel disconnected from the lumen of the rest of the bowel proximally as well as distally in association with partial or complete closure of the abdominal wall...
March 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28326960/placental-pathologic-features-in-fetomaternal-hemorrhage-detected-by-flow-cytometry
#15
Natasha E Lewis, Laura Marszalek, Linda M Ernst
Background Fetomaternal hemorrhage (FMH) is a poorly understood entity that can have significant clinical effects. Flow cytometry is a reliable and relatively new method for FMH diagnosis. The objective of this study was to correlate placental pathology with FMH detected by flow cytometry. Methods All patients with available placentas and FMH flow cytometric testing performed from 2009 to 2015 were retrospectively reviewed. Cases were defined as ≥0.10% fetal red blood cells (RBCs) in the maternal circulation while controls contained <0...
March 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28326958/persistent-left-superior-vena-cava
#16
Vrinda Nair, Kamran Yusuf, Weiming Yu, Hafez AlAwad, Kathy Paul, Essa Al Awad
Persistent left superior vena cava (PLSVC) is a common cardiac anomaly associated with congenital heart diseases. A diagnosis of PLSVC usually warrants a detailed fetal echocardiography. Lesser known associations are the extra cardiac anomalies notably the upper airway and the gastrointestinal tract anomalies. We highlight here the importance of detailed fetal assessment for extra cardiac anomalies in addition to fetal echocardiography in fetuses diagnosed with PLSVC. We hereby present a preterm infant who presented with a triad of PLSVC, laryngeal atresia, and esophageal atresia...
March 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28326570/reproductive-disorders-in-female-rats-after-prenatal-exposure-to-betamethasone
#17
Cibele S Borges, Tainá L Pacheco, Marina T Guerra, Aline L Barros, Patricia V Silva, Gabriela Missassi, Katiussia Pinho da Silva, Janete A Anselmo-Franci, André S Pupo, Wilma De G Kempinas
Betamethasone is the drug of choice for antenatal treatment, promoting fetal lung maturation and decreasing mortality. Previous studies in rats reported male programming and alteration in sperm parameters and sexual behavior following intrauterine betamethasone exposure. The impact on the female reproductive development is not known. In this study, rat female offspring was assessed for sexual development, morphophysiology of the reproductive tract and fertility after maternal exposure to 0.1 mg kg(-1) of betamethasone or vehicle on gestational days 12, 13, 18 and 19...
March 21, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28326564/parental-serum-alkaline-phosphatase-activity-as-an-auxiliary-tool-for-prenatal-diagnosis-of-hypophosphatasia
#18
Yuichiro Takahashi, Hideaki Sawai, Jun Murotsuki, Shuhei Satoh, Takahiro Yamada, Hiromi Hayakawa, Yutaka Kouduma, Masakatsu Sase, Atsushi Watanabe, Osamau Miyazaki, Gen Nishimura
OBJECTIVE: To clarify the usefulness of parental Alkaline phosphatase (ALP) for prenatal diagnosis of hypophosphatasia (HPP). METHODS: Maternal (m) and paternal (p) ALP values were measured in 77 cases from A multi-center cohort (fetal-skeletal dysplasia forum in Japan) of cases with short limbs on ultrasonography during pregnancy. After birth, X-rays, cord blood ALP, and gene analysis were evaluated to achieve an exact diagnosis. The screening usefulness of ALP was examined retrospectively...
March 22, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28326560/sex-chromosome-aneuploidy-detection-by-non-invasive-prenatal-testing-helpful-or-hazardous
#19
Rosemary E Reiss, Marie Discenza, Judith Foster, Lori Dobson, Louise Wilkins-Haug
OBJECTIVES: To assess the incidence of sex chromosome aneuploidy (SCA) predicted by non-invasive prenatal testing (NIPT), assess test performance, and compare it with nuchal translucency (NT) screening among patients seen in our prenatal diagnosis center. METHODS: We identified suspected cases of SCA by reviewing results from all NIPT samples sent from our center to commercial laboratories offering analysis by cell-free DNA between December 1, 2012 to July 31, 2015...
March 21, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28326517/labour-in-women-with-gestational-diabetes-mellitus
#20
Klaudia Grabowska, Angelika Stapińska-Syniec, Aleksandra Saletra, Patrycja Jarmużek, Dorota Bomba-Opoń
OBJECTIVES: Gestational diabetes mellitus (GDM) constitutes one of the most common pregnancy complications and affects 3-5% of all pregnancies, with its incidence still growing. Due to possible maternal and fetal complications, the peripartum management of GDM patients continues to be a debatable issue. The aim of the study was to analyse the course and final way of delivery in women with gestational diabetes mellitus. The effectiveness of induction of labour (IOL) was also assessed and factors predisposing to cesarean section were identified...
2017: Ginekologia Polska
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