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Antenatal steroids

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https://www.readbyqxmd.com/read/28222717/causes-of-death-in-very-preterm-infants-cared-for-in-neonatal-intensive-care-units-a-population-based-retrospective-cohort-study
#1
Tim Schindler, Louise Koller-Smith, Kei Lui, Barbara Bajuk, Srinivas Bolisetty
BACKGROUND: While there are good data to describe changing trends in mortality and morbidity rates for preterm populations, there is very little information on the specific causes and pattern of death in terms of age of vulnerability. It is well established that mortality increases with decreasing gestational age but there are limited data on the specific causes that account for this increased mortality. The aim of this study was to establish the common causes of hospital mortality in a regional preterm population admitted to a neonatal intensive care unit (NICU)...
February 21, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28211916/role-of-endothelial-nitric-oxide-synthase-and-endothelin-1-polymorphism-genes-with-the-pathogenesis-of-intraventricular-hemorrhage-in-preterm-infants
#2
Dawid Szpecht, Janusz Gadzinowski, Agnieszka Seremak-Mrozikiewicz, Grażyna Kurzawińska, Marta Szymankiewicz
In the pathogenesis of neonatal intraventricular hemorrhage (IVH) in preterm infants, an important role is played by changes in venous and arterial cerebral flows. It has been shown that the ability of autoregulation of cerebral flows in response to variations in arterial blood pressure in preterm infants is impaired. This impaired autoregulation causes an increased risk of germinal matrix rupture and IVH occurrence. We examined three polymorphisms of genes, related to regulation of blood flow, for an association with IVH in 100 preterm infants born from singleton pregnancy, before 32 + 0 weeks of gestation, exposed to antenatal steroids therapy, and without congenital abnormalities...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28195553/fresh-frozen-plasma-transfusion-a-risk-factor-for-pulmonary-hemorrhage-in-extremely-low-birth-weight-infants
#3
Jakob Usemann, Lars Garten, Christoph Bührer, Christof Dame, Malte Cremer
AIM: To evaluate risk factors for pulmonary hemorrhage (PH) in extremely low birth weight infants (ELBW) taking into consideration coagulation screens, platelet counts, transfusion of fresh frozen plasma (FFP), and platelet concentrates prior to PH. PATIENTS AND METHODS: A retrospective case-control study consisting of 20 ELBW infants with PH and 40 matched controls. Coagulation screens, platelet counts at birth and at onset of PH, and transfusion frequencies prior to PH were compared to case-controls at birth and 24-96 h after birth...
February 14, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28170388/lung-liquid-clearance-in-preterm-lambs-assessed-by-magnetic-resonance-imaging
#4
Ali Houeijeh, Pierre Tourneux, Sébastien Mur, Estelle Aubry, Romain Viard, Dyuti Sharma, Laurent Storme
BACKGROUND: Postnatal adaptation requires liquid clearance and lung aeration. However, their relative contribution to the expansion of functional residual capacity (FRC) has not been fully investigated. We studied evolution of lung liquid removal and lung aeration after birth in preterm lambs. METHODS: Lung liquid content and lung volume were assessed at birth and every 30 minutes over 2 hours using MRI in 3 groups of lambs delivered by cesarean: preterm, late preterm, and late preterm with antenatal steroids...
February 7, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28170341/the-effects-of-antenatal-glucocorticoid-exposure-on-fetal-and-neonatal-skin-maturation
#5
Deanne August, Yogavijayan Kandasamy
AIMS: The use of antenatal glucocorticoids in women with preterm labor has dramatically improved outcomes for premature infants. The most commonly used antenatal glucocorticoids are betamethasone and dexamethasone. Glucocorticoids accelerate fetal lung growth by several mechanisms, including the maturation of type II pneumocytes enabling surfactant production. Furthermore, the lipids in the lung share similarity with those in the skin. Therefore, antenatal administration of glucocorticoids may have effects on the structure and function of the developing epidermal barrier in fetuses and neonates...
February 7, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28146161/providers-compliance-with-practice-guidelines-of-prenatal-and-neonatal-care-to-reduce-neonatal-mortality-2004-versus-2012
#6
Renata Jaccottet Freitas, Tiago Neuenfeld Munhoz, Iná da Silva Dos Santos, Flávio Sérgio Chiuchetta, Fernando Barros, Aline Coletto, Alicia Matijasevich
Objective: To evaluate providers' compliance with practice guidelines of prenatal and neonatal care in order to reduce neonatal mortality. Methods: Uncontrolled before-and-after study designed to evaluate changes that occurred between 2004 and 2012, after the interventions proposed by the Municipality Committee of Research on Child Deaths, Foetal and Maternal Death (COMAI) on the frequency of the process indicators for perinatal assistance improvement. A total of 254 patients were studied in 2004 and 259 patients in 2012...
October 2016: Revista Brasileira de Epidemiologia, Brazilian Journal of Epidemiology
https://www.readbyqxmd.com/read/28130929/use-of-antenatal-corticosteroids-in-special-circumstances-a-comprehensive-review
#7
Everett F Magann, Kjell Haram, Songthip Ounpraseuth, Jan Helge Mortensen, Horace J Spencer, John C Morrison
OBJECTIVE: To determine in pregnancies complicated by preterm premature rupture of membranes (PPROM), hypertension, intrauterine growth restriction, multi-fetal gestations and pregnancies 23- 26 weeks≥ 34 weeks gestation whether antenatal corticosteroids benefit the fetus. DATA SOURCES: Literature review using PubMed, Web of Science, Clinical trials. gov, Cochrane Database of Systematic Reviews (1990 - 2015). METHODS OF STUDY SELECTION: Search terms linked special circumstances with corticosteroids...
January 28, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28130210/antenatal-management-in-fetal-and-neonatal-alloimmune-thrombocytopenia-a-systematic-review
#8
Dian Winkelhorst, Michael F Murphy, Andreas Greinacher, Nadine Shehata, Tamam Bakchoul, Edwin Massey, Jillian Baker, Lani Lieberman, Susano Tanael, Heather Hume, Donald M Arnold, Shoma Baidya, Gerald Bertrand, James Bussel, Mette Kjaer, Cécile Kaplan, Jens Kjeldsen-Kragh, Dick Oepkes, Greg Ryan
Several strategies can be used to manage fetal or neonatal alloimmune thrombocytopenia (FNAIT) in subsequent pregnancies. Serial fetal blood sampling (FBS) and intrauterine platelet transfusions (IUPT), and weekly maternal intravenous immunoglobulin infusion (IVIG), with or without additional corticosteroid therapy are common options, but the optimal management has not been determined. The aim of this systematic review was to assess antenatal treatment strategies for FNAIT. Four randomized controlled trials and twenty-two non-randomized studies were included...
January 27, 2017: Blood
https://www.readbyqxmd.com/read/28125511/dna-methylation-patterns-in-cord-blood-of-neonates-across-gestational-age-association-with-cell-type-proportions
#9
Susan M Braid, Kwame Okrah, Amol Shetty, Hector Corrada Bravo
BACKGROUND: A statistical methodology is available to estimate the proportion of cell types (cellular heterogeneity) in adult whole blood specimens used in epigenome-wide association studies (EWAS). However, there is no methodology to estimate the proportion of cell types in umbilical cord blood (also a heterogeneous tissue) used in EWAS. OBJECTIVES: The objectives of this study were to determine whether differences in DNA methylation (DNAm) patterns in umbilical cord blood are the result of blood cell type proportion changes that typically occur across gestational age and to demonstrate the effect of cell type proportion confounding by comparing preterm infants exposed and not exposed to antenatal steroids...
January 25, 2017: Nursing Research
https://www.readbyqxmd.com/read/28114330/trends-in-overall-mortality-and-timing-and-cause-of-death-among-extremely-preterm-infants-near-the-limit-of-viability
#10
Jae Hyun Park, Yun Sil Chang, Sein Sung, So Yoon Ahn, Won Soon Park
OBJECTIVE: To investigate the trends in mortality, as well as in the timing and cause of death, among extremely preterm infants at the limit of viability, and thus to identify the clinical factors that contribute to decreased mortality. METHODS: We retrospectively reviewed the medical records of 382 infants born at 23-26 weeks' gestation; 124 of the infants were born between 2001 and 2005 (period I) and 258 were born between 2006 and 2011 (period II). We stratified the infants into two subgroups-"23-24 weeks" and "25-26 weeks"-and retrospectively analyzed the clinical characteristics and mortality in each group, as well as the timing and cause of death...
2017: PloS One
https://www.readbyqxmd.com/read/28060793/preterm-birth-and-ventilation-decrease-surface-density-of-glomerular-capillaries-in-lambs-regardless-of-postnatal-respiratory-support-mode
#11
Eveline Staub, Mar Janna Dahl, Calan Yost, Sydney Bowen, Toshio Aoki, Adam Blair, Zhengming Wang, Donald M Null, Bradley A Yoder, Kurt H Albertine
BACKGROUND: Prematurity is often complicated by respiratory support, including invasive mechanical ventilation (IMV) and non-invasive support (NIS). Compared to IMV, NIS reduces injury to the lung and brain. Prematurity may also disrupt glomerular architecture. Whether NIS differentially affects glomerular architecture is incompletely understood. We hypothesized that IMV would lead to greater disruption of glomerular architecture than NIS. METHODS: This is a secondary analysis of kidneys from moderately preterm lambs delivered at ~131d gestation (term ~150d) that had antenatal steroid exposure and surfactant treatment before resuscitation by IMV...
January 6, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28002851/prenatal-ultrasonographic-diagnosis-of-cataract-in-utero-manifestations-of-cryptic-disease
#12
Eran Ashwal, Asaf Achiron, Yinon Gilboa, Michal Berkenstadt, Mordecai Rosner, Reuven Achiron
Purpose To report and review our experience with antenatal evaluation for fetuses diagnosed with congenital cataract. Materials and Methods We retrospectively identified pregnancies diagnosed with fetal cataract during antenatal ultrasound. Evaluation of fetal eyes included intraocular anatomy and biometry. Data on fetal malformations, serology and fetal karyotype were collected. Results 8 cases, identified over the course of 10 years, were reviewed. Week 15 was the mean time for diagnosis (range 11 - 34)...
December 21, 2016: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/27964717/impact-of-obstetric-interventions-on-condition-at-birth-in-extremely-preterm-babies-evidence-from-a-national-cohort-study
#13
Andrei S Morgan, Neil Marlow, Elizabeth S Draper, Zarko Alfirević, Enid M Hennessy, Kate Costeloe
BACKGROUND: To investigate perinatal decision-making and the use of obstetric interventions, we examined the effects of antenatal steroids, tocolysis, and delivery mode on birth in a good condition (defined as presence of an infant heart rate >100 at five minutes of age) and delivery-room (DR) death in extremely preterm deliveries. METHODS: Prospective cohort of all singleton births in England in 2006 at 22-26 weeks of gestation where the fetus was alive at the start of labour monitoring or decision to perform caesarean section...
December 13, 2016: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/27939832/morbidity-and-mortality-of-very-low-birth-weight-infants-in-taiwan-changes-in-15-years-a-population-based-study
#14
Yi-Yu Su, Shih-Hsin Wang, Hung-Chieh Chou, Chien-Yi Chen, Wu-Shiun Hsieh, Po-Nien Tsao, Kuo-Inn Tsou
BACKGROUND/PURPOSE: Very low birth weight (VLBW) infants account for over 50% of perinatal deaths in Taiwan. This study aimed to identify changes in parental characteristics, perinatal conditions, mortality, and major neonatal morbidities for VLBW infants in Taiwan, and to highlight the challenges faced by patients, families, and caregivers. METHODS: We conducted a retrospective cohort study to investigate the mortality and morbidity of VLBW infants registered in the Taiwan Premature Infant Follow-up Network from 1997 through 2011...
December 2016: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/27936476/necrotizing-enterocolitis-and-growth-in-preterm-infants-fed-predominantly-maternal-milk-pasteurized-donor-milk-or-preterm-formula-a-retrospective-study
#15
Paula M Sisk, Tinisha M Lambeth, Mario A Rojas, Teisha Lightbourne, Maria Barahona, Evelyn Anthony, Sam T Auringer
Objective To evaluate the association between necrotizing enterocolitis (NEC), growth, and feeding. Methods This is a retrospective study of 551 infants (birth weight ≤ 1,500 g, ≤32 weeks' gestation). NEC, Bell's stage ≥ 2, was confirmed by independent review of sentinel radiographs. Feeding type was defined as ≥ 50% maternal milk (MM), pasteurized donor human milk (PDHM), or preterm formula (PF). Demographic and clinical characteristics including growth were compared between the three groups...
December 9, 2016: American Journal of Perinatology
https://www.readbyqxmd.com/read/27918476/antenatal-dexamethasone-exposure-in-preterm-infants-is-associated-with-allergic-diseases-and-the-mental-development-index-in-children
#16
Wan-Ning Tseng, Chih-Cheng Chen, Hong-Ren Yu, Li-Tung Huang, Ho-Chang Kuo
Background: Antenatal steroid administration may benefit fetal lung maturity in preterm infants. Although some studies have shown that this treatment may increase asthma in childhood, the correlation between antenatal dexamethasone exposure and allergic diseases remains unclear. The purpose of this study is to investigate the association between antenatal dexamethasone and T cell expression in childhood allergic diseases. Methods: We recruited a cohort of preterm infants born at Kaohsiung Chang Gung Memorial Hospital between 2007 and 2010 with a gestational age of less than 35 weeks and body weight at birth of less than 1500 g...
December 3, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27881405/effectiveness-of-individualized-lung-recruitment-strategies-at-birth-an-experimental-study-in-preterm-lambs
#17
David G Tingay, Anushi Rajapaksa, Emanuela Zannin, Prue M Pereira-Fantini, Raffaele L Dellaca, Elizabeth J Perkins, Cornelis E E Zonneveld, Andy Adler, Don Black, Inéz Frerichs, Anna Lavizzari, Magdy Sourial, Bartłomiej Grychtol, Fabio Mosca, Peter G Davis
Respiratory transition at birth involves rapidly clearing fetal lung liquid and preventing efflux back into the lung while aeration is established. We have developed a sustained inflation (SIOPT) individualized to volume response and a dynamic tidal positive end-expiratory pressure (PEEP) (open lung volume, OLV) strategy that both enhance this process. We aimed to compare the effect of each with a group managed with PEEP of 8 cmH2O and no recruitment maneuver (No-RM), on gas exchange, lung mechanics, spatiotemporal aeration, and lung injury in 127 ± 1 day preterm lambs...
January 1, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27834784/lost-in-explanation-lessons-learned-from-audio-recordings-and-surveys-of-the-antenatal-consultation
#18
E M Studer, K L Marc-Aurele
OBJECTIVE: Determine content of antenatal prematurity consultations and identify factors associated with satisfaction. DESIGN: This is an observational study of consultations for possible preterm delivery. Consultations were audio-recorded and analyzed. Parents and physicians were surveyed post-consultation. RESULTS: We analyzed 17 audio-recordings. Mean gestation was 28 weeks. Frequency of topics discussed were: antenatal steroids 82%, intubation 82%, breast milk 76%, time in NICU 65%, development 59%, and survival 53%...
2016: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/27832835/pulmonary-function-at-hospital-discharge-in-preterm-infants-randomized-to-a-single-rescue-course-of-antenatal-steroids
#19
Brian K Jordan, Diane Schilling, Cindy T McEvoy
OBJECTIVE: To compare the pulmonary function, measured at birth and at hospital discharge, of infants whose mothers had been randomized to a single rescue course of antenatal steroids versus those whose mothers had been randomized to placebo. STUDY DESIGN: This study involved follow-up at hospital discharge of subjects of a randomized, double-blinded trial. In the original trial, pregnant women at ≥14 days after their initial course of antenatal steroids and <34 weeks' gestation were randomized to rescue antenatal steroids (44 mothers, 56 infants) or placebo (41 mothers, 57 infants)...
February 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/27818799/retracted-antenatal-steroid-therapy-for-fetal-lung-maturation-and-the-subsequent-risk-of-childhood-asthma-a-longitudinal-analysis
#20
Journal Of Pregnancy
[This retracts the article DOI: 10.1155/2010/789748.].
2016: Journal of Pregnancy
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