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Neonatology

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https://www.readbyqxmd.com/read/28076856/mri-differences-associated-with-intrauterine-growth-restriction-in-preterm-infants
#1
Christie J Bruno, Shreyans Bengani, William A Gomes, Mariana Brewer, Melissa Vega, Xianhong Xie, Mimi Kim, Mamta Fuloria
BACKGROUND: Preterm infants are at risk for neurodevelopmental impairment. Intrauterine growth restriction (IUGR) further increases this risk. Brain imaging studies are often utilized at or near term-equivalent age to determine later prognosis. OBJECTIVE: To evaluate the association between intrauterine growth and regional brain volume on MRI scans performed in preterm infants at or near term-equivalent age. METHODS: This is a retrospective case-control study of 24 infants born at gestational age ≤30 weeks and cared for in a large, inner-city, academic neonatal intensive-care unit from 2012 to 2013...
January 11, 2017: Neonatology
https://www.readbyqxmd.com/read/28073106/surfactant-need-by-gestation-for-very-preterm-babies-initiated-on-early-nasal-cpap-a-danish-observational-multicentre-study-of-6-628-infants-born-2000-2013
#2
Rikke Wiingreen, Gorm Greisen, Finn Ebbesen, Jesper Padkær Petersen, Gitte Zachariassen, Tine Brink Henriksen, Bo Mølholm Hansen
BACKGROUND: In recent years, early nasal continuous positive airway pressure (nCPAP) as respiratory support for preterm infants is being advocated as an alternative to prophylactic surfactant and treatment with mechanical ventilation. A number of infants treated with early nCPAP do not need treatment with surfactant, but few studies provide data on this. Since the 1990s, the first approach to respiratory support to preterm infants in Denmark has been early nCPAP combined with surfactant administration by the INSURE method by which the infant is intubated and surfactant administration is followed by rapid extubation to nCPAP if possible...
January 11, 2017: Neonatology
https://www.readbyqxmd.com/read/28073104/use-of-transcutaneous-bilirubin-to-determine-the-need-for-phototherapy-in-resource-limited-settings
#3
Bolajoko O Olusanya, Abieyuwa A Emokpae
BACKGROUND: Routine and timely determination of total serum bilirubin (TSB) remains a challenge in many resource-limited countries with substantial burden of severe neonatal hyperbilirubinemia. Limited evidence exists on the potential usefulness of transcutaneous bilirubin (TcB) to identify infants who may require phototherapy based on possible treatment criteria in such settings. OBJECTIVE: To compare the number of infants requiring phototherapy across different TSB criteria and determine the predictive performance of TcB under each criterion...
January 11, 2017: Neonatology
https://www.readbyqxmd.com/read/28030867/medications-that-increase-osmolality-and-compromise-the-safety-of-enteral-feeding-in-preterm-infants
#4
Suresh Chandran, Mei Chien Chua, Wanyun Lin, Jia Min Wong, Seyed Ehsan Saffari, Victor Samuel Rajadurai
BACKGROUND: Medications added to preterm milk feeds have the potential to raise osmolality, causing feed intolerance and necrotizing enterocolitis. OBJECTIVE: The aim of this study was to evaluate changes in the osmolality of milk feeds and water with 14 medications and the diluent amounts required to keep the osmolality below the safety threshold of ≤450 mOsm/kg. Changes in the osmolality of milk with medications while on continuous infusion over 2 and 4 h were determined...
December 29, 2016: Neonatology
https://www.readbyqxmd.com/read/28013313/increased-intestinal-inflammation-and-digestive-dysfunction-in-preterm-pigs-with-severe-necrotizing-enterocolitis
#5
Ann Cathrine F Støy, Peter M H Heegaard, Kerstin Skovgaard, Stine B Bering, Mette Bjerre, Per T Sangild
BACKGROUND: The risk factors for necrotizing enterocolitis (NEC) are well known, but the factors involved in the different NEC presentations remain unclear. OBJECTIVES: We hypothesized that digestive dysfunction and intestinal inflammation are mainly affected by severe NEC lesions. METHODS: In 48 preterm pigs, the association between the macroscopic NEC score (range 1-6) and the expression of 48 genes related to inflammation, morphological, and digestive parameters in the distal small intestine was investigated...
December 24, 2016: Neonatology
https://www.readbyqxmd.com/read/28013308/neonatal-pneumothorax-a-descriptive-regional-danish-study
#6
Louise Vibede, Emil Vibede, Mette Bendtsen, Lia Pedersen, Finn Ebbesen
BACKGROUND: Neonatal pneumothorax (PTX) can occur due to underlying pulmonary disease and/or ventilatory support. PTX can also develop at the onset of respiration. PTX can be life-threatening, and prompt diagnosis is essential to reduce mortality. OBJECTIVE: To analyse aetiology, demographic aspects, age at diagnosis, required treatment (specifically drainage), and prognosis of all cases of neonatal PTX observed in the North Jutland Region of Denmark from 1 January 2006 to 31 December 2014...
December 24, 2016: Neonatology
https://www.readbyqxmd.com/read/28013306/inhibition-of-rac1-signaling-downregulates-inflammasome-activation-and-attenuates-lung-injury-in-neonatal-rats-exposed-to-hyperoxia
#7
Julia K Hummler, Fredrick Dapaah-Siakwan, Ruben Vaidya, Ronald Zambrano, Siwei Luo, Shaoyi Chen, Nadine Kerr, Juan Pablo de Rivero Vaccari, Robert W Keane, W Dalton Dietrich, Eduardo Bancalari, Karen C Young, Shu Wu
BACKGROUND: Inflammatory injury, particularly the production of active interleukin (IL)-1β plays a major role in the pathogenesis of bronchopulmonary dysplasia (BPD) in preterm infants. The release of active IL-1β is controlled by posttranscriptional modifications of its proform (pro-IL-1β) through the inflammasome. Rac1 is a member of the Rho family of GTPases that regulate the inflammatory process. OBJECTIVE: This study tested the hypothesis that Rac1 signaling increases inflammasome activation that results in damaging inflammation, and that the inhibition of Rac1 signaling prevents lung injury, by inhibiting inflammasome activation in a newborn rat model of BPD induced by hyperoxia...
December 24, 2016: Neonatology
https://www.readbyqxmd.com/read/28013296/thoracoabdominal-asynchrony-is-not-associated-with-oxyhemoglobin-saturation-in-recovering-premature-infants
#8
Colleen Brennan, Lara Ulm, Samuel Julian, Aaron Hamvas, Thomas Ferkol, Julie Hoffman, Laura Linneman, James Kemp
BACKGROUND: Recovering premature infants are at risk for hypoxemia and lack of synchrony between their rib cage and abdomen due to airflow obstruction and poor respiratory compliance. Thoracoabdominal asynchrony (TAA) is a useful marker of resistive and elastic lung properties. Whether TAA predicts oxygenation is unknown. OBJECTIVES: We investigated oxyhemoglobin saturation (SpO2%) and TAA (phase angle, φ) in preterm infants with/without high-humidity nasal cannula (HHNC)...
December 24, 2016: Neonatology
https://www.readbyqxmd.com/read/27923236/the-effect-of-head-positioning-and-head-tilting-on-the-incidence-of-intraventricular-hemorrhage-in-very-preterm-infants-a-systematic-review
#9
Karen A de Bijl-Marcus, Annemieke J Brouwer, Linda S de Vries, Gerda van Wezel-Meijler
BACKGROUND: Despite advances in neonatal intensive care, germinal matrix-intraventricular hemorrhage (GMH-IVH) remains a frequent, serious complication of premature birth. Neutral head position and head tilting have been suggested to reduce the risk of GMH-IVH in preterm infants during the first 72 h of life. OBJECTIVE: The aim of this study was to provide a systematic review of the effect of neutral head positioning and head tilting on the incidence of GMH-IVH in very preterm infants (gestational age ≤30 weeks)...
December 7, 2016: Neonatology
https://www.readbyqxmd.com/read/27902988/smell-and-taste-to-improve-nutrition-in-very-preterm-infants-a-randomized-controlled-pilot-trial
#10
Friederike Beker, Gillian Opie, Elizabeth Noble, Yannan Jiang, Frank H Bloomfield
BACKGROUND: The perception of smell and taste, though present early in development, is not routinely considered in the care of preterm infants. Smell and taste are known to increase gut motility, insulin secretion, and the release of appetite, digestive and metabolic hormones. OBJECTIVE: We aimed to investigate the effect of regular smell and taste on the time from birth to full enteral feeds, and the feasibility of the study protocol in very preterm infants. METHODS: In a randomized controlled trial, infants <29 weeks' postmenstrual age (PA) were assigned to receive either the smell and taste of milk before each feed or to have no exposure to the smell and taste of milk (control)...
December 1, 2016: Neonatology
https://www.readbyqxmd.com/read/27902984/evaluation-of-club-cell-10-kda-protein-cc10-levels-in-full-term-infants
#11
Nasim Gorji, Aprile L Pilon, Melissa E Winn, Morgan Newsome, Jonathan M Davis
BACKGROUND: The club cell 10-kDa protein (CC10) is a homeostatic protein that is produced in the lung, diffuses into the blood, and is then excreted into the urine and stool. CC10 is known to have anti-inflammatory properties and to have lower endogenous production in preterm infants. OBJECTIVES: As recombinant human CC10 (rhCC10) is being studied in preterm infants to reduce lung injury, understanding CC10 levels in term infants with normal lungs is needed to establish appropriate target dosing ranges...
December 1, 2016: Neonatology
https://www.readbyqxmd.com/read/27902983/perinatal-asphyxia-and-erythropoietin-and-vegf-serial-serum-and-cerebrospinal-fluid-responses
#12
Deirdre U Sweetman, Chike Onwuneme, William R Watson, John F A Murphy, Eleanor J Molloy
BACKGROUND: Infants with neonatal encephalopathy (NE) of hypoxic-ischaemic origin are at risk of oxidative and ischaemia-reperfusion injury, which may induce abnormal inflammatory responses involving excessive cytokine production and release in serum and cerebrospinal fluid (CSF). Systemic inflammation is found in infants with NE, and we therefore were interested in cytokines associated with hypoxia, including vascular endothelial growth factor (VEGF) and erythropoietin (Epo). OBJECTIVE: To investigate the relationship between Epo, VEGF levels, brain injury and outcome in a group of term infants exposed to perinatal asphyxia (PA) compared to controls...
December 1, 2016: Neonatology
https://www.readbyqxmd.com/read/27898422/national-evidence-in-israel-supporting-reevaluation-of-respiratory-syncytial-virus-prophylactic-guidelines
#13
Itai Gross, Yael Siedner-Weintraub, Wiessam Abu Ahmad, Benjamin Bar-Oz, Smadar Eventov-Friedman
BACKGROUND: The American Academy of Pediatrics (AAP) recently narrowed the indications for respiratory syncytial virus (RSV) prophylaxis, while in Israel the guidelines have not changed. OBJECTIVE: To compare the prevalence and severity of RSV infection among preterm infants born earlier than 340/7 weeks of gestation (PI), late preterm infants born at 340/7-366/7 weeks (LPTI), and term infants born after 370/7 weeks of gestation (TI) and to determine whether the results support a change in local policy...
November 30, 2016: Neonatology
https://www.readbyqxmd.com/read/27898415/hypotension-and-adverse-outcomes-in-prematurity-comparing-definitions
#14
Deidre St Peter, Christiana Gandy, Suma B Hoffman
BACKGROUND: In the premature neonate, there is no consensus regarding normal blood pressure (BP). The most common definition used is a mean arterial BP (MAP) less than the gestational age (GA); however, studies indicate that the neuroprotective mechanism of autoregulation is lost below a MAP of 30 mm Hg. OBJECTIVE: To determine whether hypotension defined as MAP <30 mm Hg or MAP less than the infant's GA better predicts adverse outcomes of intraventricular hemorrhage (IVH) and death...
November 30, 2016: Neonatology
https://www.readbyqxmd.com/read/27894120/end-of-life-care-and-survival-without-major-brain-damage-in-newborns-at-the-limit-of-viability
#15
Fermín García-Muñoz Rodrigo, Lourdes Urquía Martí, José Ángel García Hernández, Josep Figueras Aloy, Alfredo García-Alix Pérez
BACKGROUND: The probabilities of survival and survival without major brain damage (MBD) are low in newborns at the limit of viability. Survival without MBD constitutes a major concern for parents and professionals. OBJECTIVES: To know the probabilities of survival without MBD in newborns ≤26 weeks' gestational age (GA) relative to the total number of survivors, whether these probabilities vary with GA, and how end-of-life (EoL) decisions influence these results...
November 29, 2016: Neonatology
https://www.readbyqxmd.com/read/27884010/less-neutrophil-extracellular-trap-formation-in-term-newborns-than-in-adults
#16
Patrick Lipp, Johanna Ruhnau, Anja Lange, Antje Vogelgesang, Alexander Dressel, Matthias Heckmann
BACKGROUND: Newborns are prone to infections, which are independent predictors of neonatal mortality and morbidity. Neutrophil extracellular traps (NETs) are structures composed of chromatin and antimicrobial molecules that capture and kill pathogens. NETs may play an important role in the innate immune system and, thus, might be associated with impaired neonatal immune function. OBJECTIVES: This study aimed to compare NET formation between term neonates and healthy adults...
November 25, 2016: Neonatology
https://www.readbyqxmd.com/read/27866210/body-composition-in-very-preterm-infants-role-of-neonatal-characteristics-and-nutrition-in-achieving-growth-similar-to-term-infants
#17
Geneviève Tremblay, Christine Boudreau, Sylvie Bélanger, Odette St-Onge, Etienne Pronovost, David Simonyan, Isabelle Marc
BACKGROUND: The identification of factors involved in the postnatal growth of preterm infants will help achieve growth similar to that of term infants. OBJECTIVES: As per protocol: to compare body composition in very preterm infants at term-corrected age (TCA) with that in term infants, and to explore relationships between neonatal characteristics and body composition in preterm infants. METHODS: Anthropometry, nutritional characteristics, and neonatal outcomes were prospectively collected in 26 preterm (<29 weeks) and 33 term (37-40 weeks) infants...
November 19, 2016: Neonatology
https://www.readbyqxmd.com/read/27866188/feasibility-of-laryngeal-mask-airway-device-placement-in-neonates
#18
Amanda A Wanous, Andrew Wey, Kyle D Rudser, Kari D Roberts
BACKGROUND: The laryngeal mask airway (LMA) has been used in adult and pediatric populations for decades. While the familiarity of its use in the neonatal population is increasing, there are few data investigating this. OBJECTIVE: The objective of this study was to determine the feasibility of LMA placement in neonates by investigating the time and number of attempts required for successful placement and physiologic stability during the placement of the device. METHODS: This study is one component of a national, multicenter, randomized controlled trial investigating surfactant administration through an LMA in neonates...
November 19, 2016: Neonatology
https://www.readbyqxmd.com/read/27842321/reference-ranges-of-reticulocyte-haemoglobin-content-in-preterm-and-term-infants-a-retrospective-analysis
#19
Laila Lorenz, Andreas Peter, Jörg Arand, Fabian Springer, Christian F Poets, Axel R Franz
BACKGROUND: Despite iron supplementation, some preterm infants develop iron deficiency (ID). The optimal iron status parameter for early detection of ID has yet to be determined. OBJECTIVE: To establish reference ranges for reticulocyte haemoglobin content (Ret-He) in preterm and term infants and to identify confounding factors. METHODS: Retrospective analyses of Ret-He and complete blood count in infants with a clinically indicated blood sample obtained within 24 h after birth...
November 15, 2016: Neonatology
https://www.readbyqxmd.com/read/27842320/hypoxic-ischemic-encephalopathy-associated-liver-fatty-degeneration-and-the-effects-of-therapeutic-hypothermia-in-newborn-piglets
#20
Hiroyuki Kubo, Ryuichi Shimono, Shinji Nakamura, Kosuke Koyano, Wataru Jinnai, Satoshi Yamato, Saneyuki Yasuda, Makoto Nakamura, Aya Tanaka, Takayuki Fujii, Kenji Kanenishi, Yoichi Chiba, Takanori Miki, Takashi Kusaka, Masaki Ueno
BACKGROUND: Although liver can be injured under the hypoxic-ischemic encephalopathy (HIE) condition, there is currently no histopathological evidence. Therapeutic hypothermia is used to protect the brain; however, the therapeutic potential for concomitant liver injury is unknown. OBJECTIVES: This study aimed to histopathologically prove HIE-associated liver injury and to investigate the influence of therapeutic hypothermia in a newborn piglet HIE model. METHODS: Eighteen newborn piglets were divided into 3 groups: control (n = 4), HIE (n = 8), and therapeutic hypothermia (n = 6) groups...
November 15, 2016: Neonatology
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