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Respiratory AND preterm

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https://www.readbyqxmd.com/read/28427039/low-dose-growth-hormone-treatment-in-infants-and-toddlers-with-prader-willi-syndrome-is-comparable-to-higher-dosage-regimens
#1
Elly Scheermeyer, Mark Harris, Ian Hughes, Patricia A Crock, Geoffrey Ambler, Charles F Verge, Phil Bergman, George Werther, Maria E Craig, Catherine S Choong, Peter S W Davies
OBJECTIVE: Evaluate benefit and risk of low dose growth hormone treatment (GHT, 4.5mg/m(2)/week) in very young children with Prader-Willi Syndrome (PWS). DESIGN: Prospective longitudinal clinical intervention. METHODS: We evaluated 31 infants (aged 2-12months) and 42 toddlers (13-24months) from the PWS-OZGROW database for height, weight and BMI using the World Health Organization standard deviation scores (SDSWHO) and PWS specific BMI (SDSPWS), bone age, insulin-like growth factor 1 (IGF-I) levels and adverse events over 3years of GHT...
March 24, 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/28424764/diffusion-tensor-imaging-colour-mapping-threshold-for-identification-of-ventilation-induced-brain-injury-after-intrauterine-inflammation-in-preterm-lambs
#2
Dhafer M Alahmari, Beatrice Skiöld, Samantha K Barton, Ilias Nitsos, Courtney McDonald, Suzanne L Miller, Valerie Zahra, Robert Galinsky, Qizhu Wu, Michael John Farrell, Timothy J Moss, Stuart B Hooper, James T Pearson, Graeme R Polglase
PURPOSE: The aim of this study is to examine whether advanced magnetic resonance imaging (MRI) techniques can detect early brain injury caused by intrauterine inflammation and inappropriate initial respiratory support in preterm lambs. HYPOTHESIS: Neuropathology caused by intrauterine inflammation is exacerbated by mechanical ventilation at birth and is detectable with advanced MRI techniques. METHODS: Pregnant ewes received intra-amniotic lipopolysaccharide (LPS) 7 days prior to delivery at ~125 days of gestation (85% of gestation), whereupon lambs were delivered and randomised to receive an injurious (LPS + INJ, n = 6) or protective (LPS + PROT, n = 6) ventilation strategy...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28423971/intrauterine-infection-immune-system-and-premature-birth
#3
Fernanda Rodrigues Helmo, Eduardo Arthur Rodovalho Alves, Renata Alves de Andrade Moreira, Viviane Oliveira Severino, Laura Penna Rocha, Maria Luíza Gonçalves Dos Reis Monteiro, Marlene Antônia Dos Reis, Renata Margarida Etchebehere, Juliana Reis Machado, Rosana Rosa Miranda Corrêa
Preterm birth accounts for nearly one million deaths among children under five years of age, and although its etiopathogenesis is not fully elucidated, ascending intrauterine infection and fetal inflammatory response seem to be the main triggers. The intense inflammatory response mediated by IL-1β, TNF-α, PAF, IFN-γ and IL-6, PGE2 and MMP-1 and MMP-9 causes fetal membrane damage and rupture, increased uterine contractions and biochemical and structural changes in the cervix. Furthermore, preterm neonates have deficient innate and adaptive immune responses characterized by reduced levels of IgG, opsonization and phagocytosis, as well as increased activation of Th1 cells in relation to Th2 cells...
April 20, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28422948/beyond-the-uterine-environment-nonhuman-primate-model-to-investigate-maternal-fetal-and-neonatal-outcomes-following-chronic-intrauterine-infection
#4
Meredith A Kelleher, Zheng Liu, Xiaojie Wang, Christopher D Kroenke, Lisa A Houser, Brandy L Dozier, Lauren D Martin, Ken B Waites, Cindy McEvoy, Robert L Schelonka, Peta L Grigsby
BACKGROUND: Intrauterine infection is a significant cause of early preterm birth. We have developed a fetal-neonatal model in the rhesus macaque to determine the impact of chronic intrauterine infection with Ureaplasma parvum on early neonatal reflexes and brain development. METHODS: Time-mated, pregnant rhesus macaques were randomized to be inoculated with U. parvum (serovar 1; 10(5)cfu) or control media at ~120 dGA. Neonates were delivered by elective hysterotomy at 135-147 dGA (term=167d) stabilized and cared for in our nonhuman primate neonatal intensive care unit...
April 19, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28419555/antenatal-betamethasone-for-women-at-risk-for-late-preterm-delivery-reduces-the-rate-of-neonatal-respiratory-complications
#5
Hannah R Canty, Stephanie Dukhovny, Jamie B Warren
No abstract text is available yet for this article.
April 18, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28419085/neonatal-outcomes-of-moderatelyly-preterm-infants-compared-to-extremely-preterm-infants
#6
Michele C Walsh, Edward F Bell, Sarah Kandefer, Shampa Saha, Waldemar A Carlo, Carl T D'Angio, Abbot R Laptook, Pablo J Sanchez, Barbara J Stoll, Seetha Shankaran, Krisa P Van Meurs, Noah Cook, Rosemary D Higgins, Abhik Das, Nancy S Newman, Kurt Schibler, Barbara Schmidt, C Michael Cotten, Brenda B Poindexter, Kristi L Watterberg, William E Truog
BACKGROUND: Extremely preterm infants (EPT, <29 weeks' gestation) represent only 0.9% of births in the U.S., yet these infants are focus of most published research. Moderately preterm neonates (MPT, 29-33(6/7) weeks), are an understudied group of high-risk infants. METHODS: Objective: To determine the neonatal outcomes of MPT across the gestational age spectrum, and to compare these to EPT. A prospective observational cohort was formed in 18 Level 3-4 NICUs in the Eunice Kennedy Shriver NICHD Neonatal Research Network...
April 18, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28410842/evidence-of-impaired-microvascular-dilatation-in-preterms-with-acute-respiratory-distress-syndrome
#7
Stefania Troiani, Andrea Cardona, Maddalena Milioni, Debora Monacelli, Alberto Verrotti, Marta Gehring, Giuseppe Ambrosio
BACKGROUND: Evaluating microcirculatory function in severely ill neonates is a relevant, unmet clinical need. Inappropriate peripheral microvascular vasodilatation is thought to contribute to cardiovascular alterations in preterm infants with acute respiratory distress syndrome (ARDS). We directly evaluated microcirculatory function in preterms with ARDS. METHODS: Peripheral microvascular function was assessed in 50 newborns, divided in three groups: preterms with ARDS; at-term newborns with mild-moderate congenital cardiac disease (Cardio group); healthy controls...
April 6, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28407825/-effect-of-pregnancy-induced-hypertension-syndrome-on-complications-in-very-low-birth-weight-preterm-infants
#8
Song-Zhou Xu, Xiao-Yan Hu, Fang Zhao, Yu-Xin Zhou, Shuang-Chuan Zhang
OBJECTIVE: To study the effect of pregnancy-induced hypertension syndrome (PIH) on complications in very low birth weight (VLBW) preterm infants. METHODS: The VLBW preterm infants were enrolled as research subjects, and according to the presence or absence of PIH in their mothers, they were divided into PIH group and non- PIH group. The incidence of major complications and length of hospital stay were compared between the two groups. RESULTS: There were no significant differences between the two groups in gestational age, birth weight, sex, incidence rate of maternal diabetes, and use of antepartum hormone...
April 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28405492/a-rare-complication-of-central-venous-catheter-extravasation-in-a-preterm-neonate-hemidiaphragmatic-paralysis
#9
C Hobson, D Dubillot, H Lardy, D Sirinelli, E Saliba, E Lopez
We report a case of a preterm neonate born at 26 weeks' of gestation diagnosed with unilateral diaphragmatic paralysis. This paralysis was a consequence of a phrenic nerve injury due to extravasation of hyperosmolar parenteral nutrition fluid in the upper thorax. Chest X-rays and ultrasonography confirmed the diagnosis. The neonate was treated with prolonged respiratory support and did not require surgical treatment. This report describes a case of hemidiaphragmatic paralysis as a complication of central venous catheter insertion...
April 2017: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/28402073/infantile-hemangiomas-an-updated-review-on-risk-factors-pathogenesis-and-treatment
#10
REVIEW
Chelsey J Forbess Smith, Sheila Fallon Friedlander, Monica Guma, Arthur Kavanaugh, Christina D Chambers
Infantile hemangiomas (IHs) are the most common vascular tumors in infants, appearing in early infancy and ultimately regressing with time. Clinical presentation may vary, with a minority of lesions causing impairment of vital function (e.g., respiratory or visual obstruction), permanent scarring, and/or disfigurement. The pathogenesis of IH is complex and poorly understood. Risk factors implicated in their development include preterm birth and placental anomalies. IH presents a myriad of clinical challenges, including correct diagnosis and whether or not to pursue treatment...
April 12, 2017: Birth Defects Res
https://www.readbyqxmd.com/read/28399118/feasibility-and-physiological-effects-of-non-invasive-neurally-adjusted-ventilatory-assist-niv-nava-in-preterm-infants
#11
Christopher Gibu, Phillip Cheng, Raymond J Ward, Benjamin Castro, Gregory P Heldt
BACKGROUND: Non-invasive Neurally Adjusted Ventilator Assist (NIV-NAVA) was introduced to our clinical practice via a pilot and a randomized observational study to assess its safety, feasibility, and short term physiological effects. METHODS: The pilot protocol applied NIV-NAVA to 11 infants on nasal CPAP, high-flow nasal cannula (HFNC), or nasal IMV (NIMV), in multiple 2-4 h periods of NIV-NAVA for comparison. This provided the necessary data to design a randomized, controlled observational cross-over study in 8 additional infants to compare the physiological effects of NIV-NAVA to NIMV during 2-hour steady state conditions...
April 11, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28391538/efficacy-of-palivizumab-prophylaxis-on-the-frequency-of-rsv-associated-lower-respiratory-tract-infections-in-preterm-infants-determination-of-the-ideal-target-population-for-prophylaxis
#12
M Cetinkaya, T K Oral, S Karatekin, B Cebeci, A Babayigit, Y Yesil
Respiratory syncytial virus (RSV) prophylaxis in high-risk infants is an effective intervention for the prevention of severe disease. The aim of this study was to determine the ideal target preterm population that might benefit from palivizumab prophylaxis by establishing the main risk factors for acute RSV-related infections. Former premature infants born with a gestational age ≤37 weeks and ≤1 year of age at the beginning of the RSV season and admitted with respiratory infection were included. RSV status was evaluated by RSV strip test in all infants...
April 8, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28389599/preterm-respiratory-disease-in-the-modern-era-the-value-of-cohort-studies
#13
EDITORIAL
Gregory S Montgomery, Stephanie D Davis
No abstract text is available yet for this article.
April 7, 2017: Thorax
https://www.readbyqxmd.com/read/28388600/influence-of-antenatal-glucocorticoid-on-preterm-lamb-diaphragm
#14
Tanzila Mahzabin, J Jane Pillow, Gavin J Pinniger, Anthony J Bakker, Peter B Noble, Robert B White, Kanakeswary Karisnan, Yong Song
BACKGROUND: Pregnant women at high risk of preterm delivery receive glucocorticoids to accelerate fetal lung maturation and surfactant synthesis. However, the effect of antenatal steroids on the developing diaphragm remains unclear. We hypothesized that maternal betamethasone impairs the fetal diaphragm, and the magnitude of the detrimental effect increases with longer duration of exposure. We aimed to determine how different durations of fetal exposure to maternal betamethasone treatment influence the fetal diaphragm at the functional and molecular levels...
April 7, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28383541/perinatal-health-services-organization-for-preterm-births-a-multinational-comparison
#15
L E Kelly, P S Shah, S Håkansson, S Kusuda, M Adams, S K Lee, G Sjörs, M Vento, F Rusconi, L Lehtonen, B Reichman, B A Darlow, K Lui, L S Feliciano, L Gagliardi, D Bassler, N Modi
OBJECTIVE: To explore population characteristics, organization of health services and comparability of available information for very low birth weight or very preterm neonates born before 32 weeks' gestation in 11 high-income countries contributing data to the International Network for Evaluating Outcomes of Neonates (iNeo). STUDY DESIGN: We obtained population characteristics from public domain sources, conducted a survey of organization of maternal and neonatal health services and evaluated the comparability of data contributed to the iNeo collaboration from Australia, Canada, Finland, Israel, Italy, Japan, New Zealand, Spain, Sweden, Switzerland and UK...
April 6, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28375031/is-the-c242t-polymorphism-of-the-cyba-gene-linked-with-oxidative-stress-associated-complications-of-prematurity
#16
Maurice J Huizing, Giacomo Cavallaro, Rob M Moonen, Gema E Gonzalez-Luis, Fabio Mosca, Maximo Vento, Eduardo Villamor
The C242T polymorphism of CYBA, the gene encoding the p22phox subunit of NADPH oxidase, has been linked to several conditions in which oxidative stress plays a pathogenic role. We investigated in a cohort of 451 preterm infants (gestational age≤ 30 weeks) the association of the polymorphism with the risk of developing neonatal respiratory distress syndrome (RDS), retinopathy of prematurity (ROP), bronchopulmonary dysplasia (BPD), necrotizing enterocolitis (NEC), patent ductus arteriosus, or intraventricular hemorrhage...
April 4, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28371672/determinants-of-pulmonary-dead-space-in-ventilated-newborn-infants
#17
Theodore Dassios, Ourania Kaltsogianni, Anne Greenough
BACKGROUND: Pulmonary dead space (VD) is an index of ventilation inhomogeneity and one of the determinants of the magnitude of tidal volume to maintain optimal blood gases. AIMS: To identify the determinants of VD in ventilated newborns and to investigate differences in VD between prematurely born and term infants and those prematurely born infants who did or did not develop bronchopulmonary dysplasia (BPD). METHODS: Sixty-one mechanically ventilated infants (15 term, 46 preterm) were studied at a median age of 8 (IQR 2-31) days; 32 of the preterm infants developed BPD...
March 31, 2017: Early Human Development
https://www.readbyqxmd.com/read/28367650/effects-of-surfactant-treatment-in-late-preterm-infants-with-respiratory-distress-syndrome
#18
Carlo Dani, Fabio Mosca, Giovanni Vento, Paolo Tagliabue, Simonetta Picone, Gianluca Lista, Vassilios Fanos, Simone Pratesi, Luca Boni
OBJECTIVE: To evaluate surfactant effectiveness for the treatment of respiratory distress syndrome (RDS) in late preterm infants. METHODS: We performed a retrospective cohort study of infants born between 34(+0) and 36(+6) weeks of gestation admitted for respiratory failure in seven perinatal centers from January 2010 to December 2014. We evaluated changes of FiO2, PaO2, and a/APO2 in surfactant-treated patients, and the need and duration of MV, the duration of non-invasive respiratory support, stay in NICU and in hospital in surfactant-treated and untreated late preterm infants with RDS alone...
April 2, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28367357/resuscitation-with-intact-placental-circulation-in-a-preterm-infant-with-hydrops-fetalis
#19
Simone Pratesi, Iuri Corsini, Caterina Coviello, Silvia Perugi, Carlo Dani
A preterm infant with prenatal diagnosis of hydrops fetalis was spontaneously delivered at 30 weeks of gestational age in a tertiary level hospital. Prenatal echography pointed out severe bilateral pleural effusions and diffused subcutaneous edema. A neonatologist team, alerted at the expulsion stage of labor, assisted the neonate immediately after birth and bilateral hydrothorax was drained with intact placental circulation to avoid a nonrespiratory period and its possible detrimental hemodynamic effects. The newborn was well stabilized in the delivery room before cutting the umbilical cord and starting mechanical ventilation...
January 2017: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/28363939/nasopharyngeal-microbiome-in-premature-infants-and-stability-during-rhinovirus-infection
#20
Geovanny F Perez, Marcos Pérez-Losada, Natalia Isaza, Mary C Rose, Anamaris M Colberg-Poley, Gustavo Nino
RATIONALE: The nasopharyngeal (NP) microbiota of newborns and infants plays a key role in modulating airway inflammation and respiratory symptoms during viral infections. Premature (PM) birth modifies the early NP environment and is a major risk factor for severe viral respiratory infections. However, it is currently unknown if the NP microbiota of PM infants is altered relative to full-term (FT) individuals. OBJECTIVES: To characterize the NP microbiota differences in preterm and FT infants during rhinovirus (RV) infection...
March 31, 2017: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
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