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https://www.readbyqxmd.com/read/28236394/special-considerations-in-neonatal-mechanical-ventilation
#1
REVIEW
Stacey Dalgleish, Linda Kostecky, Irina Charania
Care of infants supported with mechanical ventilation is complex, time intensive, and requires constant vigilance by an expertly prepared health care team. Current evidence must guide nursing practice regarding ventilated neonates. This article highlights the importance of common language to establish a shared mental model and enhance clear communication among the interprofessional team. Knowledge regarding the underpinnings of an open lung strategy and the interplay between the pathophysiology and individual infant's response to a specific ventilator strategy is most likely to result in a positive clinical outcome...
December 2016: Critical Care Nursing Clinics of North America
https://www.readbyqxmd.com/read/28228284/respiratory-syncytial-virus-infects-regulatory-b-cells-in-human-neonates-via-chemokine-receptor-cx3cr1-and-promotes-lung-disease-severity
#2
Dania Zhivaki, Sébastien Lemoine, Annick Lim, Ahsen Morva, Pierre-Olivier Vidalain, Liliane Schandene, Nicoletta Casartelli, Marie-Anne Rameix-Welti, Pierre-Louis Hervé, Edith Dériaud, Benoit Beitz, Maryline Ripaux-Lefevre, Jordi Miatello, Brigitte Lemercier, Valerie Lorin, Delphyne Descamps, Jenna Fix, Jean-François Eléouët, Sabine Riffault, Olivier Schwartz, Fabrice Porcheray, Françoise Mascart, Hugo Mouquet, Xiaoming Zhang, Pierre Tissières, Richard Lo-Man
Respiratory syncytial virus (RSV) is the major cause of lower respiratory tract infections in infants and is characterized by pulmonary infiltration of B cells in fatal cases. We analyzed the B cell compartment in human newborns and identified a population of neonatal regulatory B lymphocytes (nBreg cells) that produced interleukin 10 (IL-10) in response to RSV infection. The polyreactive B cell receptor of nBreg cells interacted with RSV protein F and induced upregulation of chemokine receptor CX3CR1. CX3CR1 interacted with RSV glycoprotein G, leading to nBreg cell infection and IL-10 production that dampened T helper 1 (Th1) cytokine production...
February 21, 2017: Immunity
https://www.readbyqxmd.com/read/28221737/feasibility-of-multiple-breath-washout-measurements-in-infants-with-bronchiolitis-a-pilot-study
#3
Patrick Stafler, Sigal Weinreb, Huda Mussaffi, Meir Mei-Zahav, Dario Prais, Guy Steuer, Ophir Bar-On, Moshe Hoshen, Hannah Blau
BACKGROUND: Lung clearance index (LCI) reflects ventilation inhomogeneity and is raised in obstructive airway disease. Feasibility of multiple breath washout (MBW) measurement during acute lung disease in infants is unknown. As a further measure of disease, exhaled nitric oxide (eNO) may paradoxically decrease in acute bronchiolitis. We hypothesized that MBW measurements were attainable in infants with bronchiolitis and that LCI was raised and eNO reduced, compared to normal controls...
February 21, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28215425/outcomes-of-lung-transplantation-for-infants-and-children-with-genetic-disorders-of-surfactant-metabolism
#4
Whitney B Eldridge, Qunyuan Zhang, Albert Faro, Stuart C Sweet, Pirooz Eghtesady, Aaron Hamvas, F Sessions Cole, Jennifer A Wambach
OBJECTIVE: To compare outcomes of infants and children who underwent lung transplantation for genetic disorders of surfactant metabolism (SFTPB, SFTPC, ABCA3, and NKX2-1) over 2 epochs (1993-2003 and 2004-2015) at St Louis Children's Hospital. STUDY DESIGN: We retrospectively reviewed clinical characteristics, mortality, and short- and long-term morbidities of infants (transplanted at <1 year; n = 28) and children (transplanted >1 year; n = 16) and compared outcomes by age at transplantation (infants vs children) and by epoch of transplantation...
February 16, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28213471/attenuation-of-endoplasmic-reticulum-stress-by-caffeine-ameliorates-hyperoxia-induced-lung-injury
#5
Ru-Jeng Teng, Xigang Jing, Teresa Michalkiewicz, Adeleye J Afolayan, Tzong-Jin Wu, Girija G Konduri
Rodent pups exposed to hyperoxia develop lung changes similar to bronchopulmonary dysplasia (BPD) in extremely premature infants. Oxidative stress from hyperoxia can injure developing lungs through endoplasmic reticulum (ER) stress. Early caffeine treatment decreases the rate of BPD, but the mechanisms remain unclear. We hypothesized that caffeine attenuates hyperoxia-induced lung injury through its chemical chaperone property. Sprague-Dawley rat pups were raised either in 90% (hyperoxia) or 21% (normoxia) oxygen from postnatal day 1 (P1) to postnatal day 10 (P10) and then recovered in 21% oxygen until P21...
February 17, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28210569/infant-acute-myocarditis-mimicking-acute-myocardial-infarction
#6
Maher Jedidi, Samia Tilouche, Tasnim Masmoudi, Maha Sahnoun, Youssef Chkirbène, Sarra Mestiri, Lamia Boughamoura, Mohamed Ben Dhiab, Mohamed Kamel Souguir
Myocarditis is an inflammatory disease of the myocardium with heterogeneous clinical manifestations and progression. In clinical practice, although there are many methods of diagnosis of acute myocarditis, the diagnosis remains an embarrassing dilemma for clinicians. The authors report the case of 9-month-old infant who was brought to the Pediatric Emergency Department with sudden onset dyspnea. Examination disclosed heart failure and resuscitation was undertaken. The electrocardiogram showed an ST segment elevation in the anterolateral leads with a mirror image...
October 2016: Autopsy & case reports
https://www.readbyqxmd.com/read/28208028/early-life-wildfire-smoke-exposure-is-associated-with-immune-dysregulation-and-lung-function-decrements-in-adolescence
#7
Carolyn Black, Joan E Gerriets, Justin H Fontaine, Richart W Harper, Nicholas J Kenyon, Fern Tablin, Edward S Schelegle, Lisa A Miller
RATIONALE: The long-term health effects of wildfire smoke exposure in pediatric populations are not known. OBJECTIVE: To determine if early life exposure to wildfire smoke can affect parameters of immunity and airways physiology that are detectable with maturity. METHODS: We studied a mixed gender cohort of rhesus macaque monkeys that were exposed as infants to ambient wood smoke from a series of Northern California wildfires in the summer of 2008...
February 16, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28207570/international-survey-of-critically-ill-children-with-acute-neurologic-insults-the-prevalence-of-acute-critical-neurological-disease-in-children-a-global-epidemiological-assessment-study
#8
Ericka L Fink, Patrick M Kochanek, Robert C Tasker, John Beca, Michael J Bell, Robert S B Clark, Jamie Hutchison, Monica S Vavilala, Anthony Fabio, Derek C Angus, R Scott Watson
OBJECTIVE: The international scope of critical neurologic insults in children is unknown. Our objective was to assess the prevalence and outcomes of children admitted to PICUs with acute neurologic insults. DESIGN: Prospective study. SETTING: Multicenter (n = 107 PICUs) and multinational (23 countries, 79% in North America and Europe). PATIENTS: Children 7 days to 17 years old admitted to the ICU with new traumatic brain injury, stroke, cardiac arrest, CNS infection or inflammation, status epilepticus, spinal cord injury, hydrocephalus, or brain mass...
February 15, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28206995/patent-ductus-arteriosus-in-premature-infants-to-treat-or-not-to-treat
#9
M A Mohamed, M El-Dib, S Alqahtani, K Alyami, A N Ibrahim, H Aly
OBJECTIVE: Closing patent ductus arteriosus (PDA) is a widely accepted approach in the management of very low birth weight (VLBW) infants. Our objective is to test the hypothesis that conservative management (no treatment) of PDA will not affect survival without chronic lung diseases (CLD). STUDY DESIGN: This retrospective study utilizes a prospectively collected database to compare two cohorts of VLBW infants. Infants in the first group (2001 to 2009) had their PDA treated with pharmacological and if necessary with surgical ligation...
February 16, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28203565/tubular-dysfunction-mimicking-dent-s-disease-in-2-infants-born-with-extremely-low-birth-weight
#10
Midori Awazu, Mie Arai, Shoko Ohashi, Hirotaka Takahashi, Takashi Sekine, Kazushige Ikeda
Two preterm infants, with extremely low birth weight born at gestational weeks 24 and 25, showed generalized proximal tubular dysfunction during their stay in the neonatal intensive care unit, including glucosuria, low molecular weight proteinuria, phosphaturia, uricosuria, enzymuria (elevated urine N-acetyl-β-D-glucosaminidase), panaminoaciduria, and hypercalciuria, associated with renal calcification. Renal tubular acidosis was not present in either patient. DNA mutation analysis for Dent's disease, performed in patient 1, was negative...
January 2017: Case Reports in Nephrology and Dialysis
https://www.readbyqxmd.com/read/28202768/respiratory-morbidity-in-infants-born-with-a-congenital-lung-malformation
#11
Celine Delestrain, Naziha Khen-Dunlop, Alice Hadchouel, Pierrick Cros, Héloïse Ducoin, Michael Fayon, Isabelle Gibertini, André Labbé, Géraldine Labouret, Marie-Noëlle Lebras, Guillaume Lezmi, Fouad Madhi, Guillaume Thouvenin, Caroline Thumerelle, Christophe Delacourt
BACKGROUND AND OBJECTIVES: The actual frequency of respiratory symptoms related to congenital pulmonary malformations (CPMs) remains undetermined. The goal of this study was to prospectively evaluate the respiratory symptoms occurring in infants with prenatally diagnosed CPMs, identify factors associated with the occurrence of these symptoms, and evaluate their resolution after surgery. METHODS: Infectious and noninfectious respiratory symptoms were prospectively collected in a French multicenter cohort of children with CPMs...
February 15, 2017: Pediatrics
https://www.readbyqxmd.com/read/28201809/newborn-mice-lacking-the-gene-for-cyp1a1-are-more-susceptible-to-oxygen-mediated-lung-injury-and-are-rescued-by-postnatal-%C3%AE-napthoflavone-bnf-administration-implications-for-bronchopulmonary-dysplasia-bpd-in-premature-infants
#12
Paramahamsa Maturu, Yanhong Wei-Liang, Weiwu Jiang, Lihua Wang, Krithika Lingappan, Roberto Barrios, Yao Liang, Bhagavatula Moorthy, Xanthi I Couroucli
No abstract text is available yet for this article.
February 13, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28199154/individualized-multiplanar-electrical-impedance-tomography-in-infants-to-optimize-lung-monitoring
#13
Martijn Miedema, Andreas Waldmann, Karen E McCall, Stephan H Böhm, Anton H van Kaam, David G Tingay
No abstract text is available yet for this article.
February 15, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28198754/relationship-between-adverse-tracheal-intubation-associated-events-and-picu-outcomes
#14
Margaret M Parker, Gabrielle Nuthall, Calvin Brown, Katherine Biagas, Natalie Napolitano, Lee A Polikoff, Dennis Simon, Michael Miksa, Eleanor Gradidge, Jan Hau Lee, Ashwin S Krishna, David Tellez, Geoffrey L Bird, Kyle J Rehder, David A Turner, Michelle Adu-Darko, Sholeen T Nett, Ashley T Derbyshire, Keith Meyer, John Giuliano, Erin B Owen, Janice E Sullivan, Keiko Tarquinio, Pradip Kamat, Ronald C Sanders, Matthew Pinto, G Kris Bysani, Guillaume Emeriaud, Yuki Nagai, Melissa A McCarthy, Karen H Walson, Paula Vanderford, Anthony Lee, Jesse Bain, Peter Skippen, Ryan Breuer, Sarah Tallent, Vinay Nadkarni, Akira Nishisaki
OBJECTIVE: Tracheal intubation in PICUs is a common procedure often associated with adverse events. The aim of this study is to evaluate the association between immediate events such as tracheal intubation associated events or desaturation and ICU outcomes: length of stay, duration of mechanical ventilation, and mortality. STUDY DESIGN: Prospective cohort study with 35 PICUs using a multicenter tracheal intubation quality improvement database (National Emergency Airway Registry for Children: NEAR4KIDS) from January 2013 to June 2015...
February 14, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28196114/retinopathy-of-prematurity-a-comprehensive-risk-analysis-for-prevention-and-prediction-of-disease
#15
Leah A Owen, Margaux A Morrison, Robert O Hoffman, Bradley A Yoder, Margaret M DeAngelis
BACKGROUND: Retinopathy of prematurity (ROP) is a blinding morbidity of preterm infants. Our current screening criteria have remained unchanged since their inception and lack the ability to identify those at greatest risk. OBJECTIVES: We sought to comprehensively analyze numerous proposed maternal, infant, and environmental ROP risk variables in a robustly phenotyped population using logistic regression to determine the most predictive model for ROP development and severity...
2017: PloS One
https://www.readbyqxmd.com/read/28192119/leflunomide-induces-nad-p-h-quinone-dehydrogenase-1-enzyme-via-the-aryl-hydrocarbon-receptor-in-neonatal-mice
#16
Amrit Kumar Shrestha, Ananddeep Patel, Renuka T Menon, Weiwu Jiang, Lihua Wang, Bhagavatula Moorthy, Binoy Shivanna
Aryl hydrocarbon receptor (AhR) has been increasingly recognized to play a crucial role in normal physiological homeostasis. Additionally, disrupted AhR signaling leads to several pathological states in the lung and liver. AhR activation transcriptionally induces detoxifying enzymes such as cytochrome P450 (CYP) 1A and NAD(P)H quinone dehydrogenase 1 (NQO1). The toxicity profiles of the classical AhR ligands such as 3-methylcholanthrene and dioxins limit their use as a therapeutic agent in humans. Hence, there is a need to identify nontoxic AhR ligands to develop AhR as a clinically relevant druggable target...
February 10, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28191644/nk-cell-receptors-nkp46-and-ncr1-control-human-metapneumovirus-infection
#17
Mohammad Diab, Ariella Glasner, Batya Issacson, Yotam Bar-On, Yaron Drori, Rachel Yamin, Alexandra Duev-Cohen, Oded Danziger, Rachel Zamostiano, Michal Mandelboim, Stipan Jonjic, Eran Bacharach, Ofer Mandelboim
Natural killer (NK) cells are capable of killing various pathogens upon stimulation of activating receptors. Human metapneumovirus (HMPV) is a respiratory virus, which was discovered in 2001 and is responsible for acute respiratory tract infection in infants and children worldwide. HMPV infection is very common, infecting around 70% of all children under the age of five. Under immune suppressive conditions, HMPV infection can be fatal. Not much is known on how NK cells respond to HMPV. In this study, using reporter assays and NK-cell cytotoxicity assays performed with human and mouse NK cells, we demonstrated that the NKp46 activating receptor and its mouse orthologue Ncr1, both members of the NCR family, recognized an unknown ligand expressed by HMPV infected human cells...
February 13, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28182566/measurement-of-tidal-breathing-flows-in-infants-using-impedance-pneumography
#18
Leo Pekka Malmberg, Ville-Pekka Seppä, Anne Kotaniemi-Syrjänen, Kristiina Malmström, Merja Kajosaari, Anna S Pelkonen, Jari Viik, Mika J Mäkelä
Tidal breathing flow volume (TBFV) profiles have been used to characterise altered lung function. Impedance pneumography (IP) is a novel option for assessing TBFV curves noninvasively. The aim of this study was to extend the application of IP for infants and to estimate the agreement between IP and direct pneumotachograph (PNT) measurements in assessing tidal airflow and flow-derived indices.Tidal flow profiles were recorded for 1 min simultaneously with PNT and uncalibrated IP at baseline in 44 symptomatic infants, and after methacholine-induced bronchoconstriction in a subgroup (n=20)...
December 19, 2016: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28179905/plasma-levels-of-macrophage-migration-inhibitory-factor-and-d-dopachrome-tautomerase-show-a-highly-specific-profile-in-early-life
#19
Thierry Roger, Luregn J Schlapbach, Anina Schneider, Manuela Weier, Sven Wellmann, Patrick Marquis, David Vermijlen, Fred C G J Sweep, Lin Leng, Richard Bucala, Thierry Calandra, Eric Giannoni
Macrophage migration inhibitory factor (MIF) is a pleiotropic, constitutively expressed, pro-inflammatory cytokine and an important regulator of immune responses. d-dopachrome tautomerase (DDT), a newly described member of the MIF protein superfamily, shares sequence homology and biological activities with MIF. We recently reported that high expression levels of MIF sustain innate immune responses in newborns. Here, we elected to further characterize age-dependent MIF expression and to define whether DDT shares a similar expression profile with MIF...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28179507/intestinal-commensal-bacteria-mediate-lung-mucosal-immunity-and-promote-resistance-of-newborn-mice-to-infection
#20
Jerilyn Gray, Katherine Oehrle, George Worthen, Theresa Alenghat, Jeffrey Whitsett, Hitesh Deshmukh
Immature mucosal defenses contribute to increased susceptibility of newborn infants to pathogens. Sparse knowledge of age-dependent changes in mucosal immunity has hampered improvements in neonatal morbidity because of infections. We report that exposure of neonatal mice to commensal bacteria immediately after birth is required for a robust host defense against bacterial pneumonia, the leading cause of death in newborn infants. This crucial window was characterized by an abrupt influx of interleukin-22 (IL-22)-producing group 3 innate lymphoid cells (IL-22(+)ILC3) into the lungs of newborn mice...
February 8, 2017: Science Translational Medicine
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