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Surfactant neonate

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https://www.readbyqxmd.com/read/28295039/deciphering-the-mechanism-of-q145h-sftpc-mutation-unmasks-a-splicing-defect-and-explains-the-severity-of-the-phenotype
#1
Céline Delestrain, Stéphanie Simon, Abdel Aissat, Rachel Medina, Xavier Decrouy, Elodie Nattes, Agathe Tarze, Bruno Costes, Pascale Fanen, Ralph Epaud
Mutations in the gene encoding surfactant protein C (SFTPC) have led to a broad range of phenotypes from neonatal respiratory distress syndrome to adult interstitial lung disease. We previously identified the c.435G>C variant in the SFTPC gene associated with fatal neonatal respiratory distress syndrome in an infant girl. Although this variation is predicted to change glutamine (Q) at position 145 to histidine (H), its position at the last base of exon 4 and the severity of the phenotype suggested that it might also induce a splicing defect...
March 15, 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28287810/evaluation-of-initial-respiratory-support-strategies-in-vlbw-neonates-with-rds
#2
Seyyed Abolfazl Afjeh, Mohammad Kazem Sabzehei, Maryam Khoshnood Shariati, Ahmad Reza Shamshiri, Fatemeh Esmaili
BACKGROUND: Non-invasive ventilation (NIV) has brought about a significant change in care and treatment of respiratory distress syndrome (RDS) in very low birth weight (VLBW) neonates. The present study was designed and conducted to evaluate different strategies of initial respiratory support (IRS) in VLBW neonates hospitalized in the neonatal intensive care unit (NICU). METHODS: This prospective study was conducted over three years (March 21, 2011 to March 20, 2014)...
March 2017: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/28282822/neonatal-outcomes-following-planned-preterm-delivery-in-diabetic-mothers
#3
E V Cope, N Sultana, E A Masson, B J Allen, A Oboh, L Wilkinson, C Wood, S W Lindow
OBJECTIVE: Women with diabetes may need elective preterm delivery due to pregnancy or diabetes related complications. The aim of this study was to describe the neonatal outcomes arising from elective preterm delivery in diabetic women. METHOD: Suitable patients were identified by the obstetric team at Hull Royal Infirmary Women and Children's Hospital and data was extracted from their case notes. 45 diabetic women with planned preterm delivery were identified within a set time frame, resulting in 48 babies...
March 4, 2017: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/28279433/patterns-of-oxygenation-mortality-and-growth-status-in-the-surfactant-positive-pressure-and-oxygen-trial-cohort
#4
Juliann M Di Fiore, Richard J Martin, Hong Li, Nathan Morris, Waldemar A Carlo, Neil Finer, Michele Walsh
OBJECTIVE: To characterize actual achieved patterns of oxygenation in infants born appropriate vs small for gestational age (SGA) randomized to a lower (85-89%) vs higher (91%-95%) oxygen saturation target in the Surfactant Positive Pressure and Oxygen Trial. To determine the association between achieved oxygen saturation levels and survival in infants born appropriate vs SGA enrolled in the Surfactant Positive Pressure and Oxygen Trial. STUDY DESIGN: Median oxygen saturation and intermittent hypoxemia events (<80%, 20 seconds-5  minutes) were documented in 1054 infants of 24(0/7)-27(6/7) weeks of gestation while receiving supplemental oxygen during the first 3 days of life...
March 6, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28273701/-analysis-of-clinical-characteristics-and-factors-associated-with-short-term-outcomes-in-early-term-neonates
#5
S S Long, Q X Tang, B X Huang, B Y Lin, L S Wang
Objective: To investigate the clinical characteristics of early term and full term neonates, and analyze the risk factors associated with short term outcomes in early term neonates. Method: Neonates with birth weight (BW) ≥2 500 g from year 2013 were analyzed retrospectively based on American Congress of Obstericians & Gynecologists (ACOG) latest definition of term infants. According to inclusion and exclusion criteria, early term (gestational age 37-38 weeks) and full term(gestational age 39-40 weeks) neonates were included, whose morbidity constituent proportion was analyzed by χ(2) test or Fisher accuracy test or t test or Wilcoxon test...
March 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28270430/the-roles-of-drug-therapy-given-via-the-endotracheal-tube-to-neonates
#6
Anne Greenough, Niovi Papalexopoulou
Many drugs are given to intubated neonates by the inhalation route. The optimum aerosol delivery system, however, has not been identified and there are many challenges in delivering drugs effectively to the lower airways of intubated neonates. The effectiveness of surfactant in prematurely born infants and nitric oxide has been robustly investigated. Other drugs are being used on very limited evidence.
March 7, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28267272/effect-of-ventilator-mode-on-patient-ventilator-synchrony-and-work-of-breathing-in-neonatal-pigs
#7
Shayna M Wood, Tracy L Thurman, Shirley J Holt, Shasha Bai, Mark J Heulitt, Sherry E Courtney
BACKGROUND: Patient-ventilator asynchrony can result in increased work of breathing (WOB) and need for increased sedation, as well as respiratory muscle fatigue and prolonged mechanical ventilation. Different ventilator modes may result in varying degrees of asynchrony and WOB. OBJECTIVE: The objectives of this study were to assess the incidence of asynchrony and the effect of asynchrony on WOB in three modes of ventilation: pressure regulated volume control (PRVC), synchronized intermittent mandatory ventilation/volume control plus pressure support (SIMV/VC plus PS), and SIMV/PRVC plus PS...
March 7, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28258032/morbidity-and-mortality-trends-in-very-very-low-birth-weight-premature-infants-in-light-of-recent-changes-in-obstetric-care
#8
Péter Varga, Botond Berecz, Ákos Gasparics, Zsófia Dombi, Zsuzsa Varga, Judit Jeager, Zsófia Magyar, János Rigó, József Gábor Joó, László Kornya
OBJECTIVE: In this study, we describe trends in morbidity and mortality of preterm infants with less than 500mg birth weight in the changing landscape of obstetric and neonatal care. STUDY DESIGN: During a ten year study period between 2006 and 2016 we assessed outcome data for all neonates with less than 500mg birth weight born at our Neonatal Intensive Care Unit. We divided study subjects into two groups based on whether their birth date fell in the first half (2006-2010; n=39) versus the second half (2011-2015; n=27) of the study period comparing clinical outcomes in the two groups...
January 23, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28243581/impact-of-changing-clinical-practices-on-early-blood-gas-analyses-in-very-preterm-infants-and-their-associated-inpatient-outcomes
#9
Hongmei Huang, Po-Yin Cheung, Megan O'Reilly, Sylvia van Os, Anne Lee Solevåg, Khalid Aziz, Georg M Schmölzer
BACKGROUND: Early studies suggest an association of abnormal carbon dioxide (PCO2) or oxygen (PO2) levels with adverse inpatient outcomes in very preterm babies. Recent resuscitation practice changes, such as targeted oxygen therapy, end-expiratory pressure, and rescue surfactant may influence these associations. OBJECTIVE: The aim of this study is to assess the range of the initial partial pressures of PCO2 and PO2 in preterm neonates <33 weeks gestational age after birth and their correlation to inpatient neonatal outcomes...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28221717/cerebral-and-lung-effects-of-a-new-generation-synthetic-surfactant-with-sp-b-and-sp-c-analogs-in-preterm-lambs
#10
Carmen Rey-Santano, Victoria E Mielgo, Xabier Murgia, Miguel Angel Gomez-Solaetxe, Fabrizio Salomone, Federico Bianco, Nicola Pelizzi, Begoña Loureiro, Jon López de Heredia Y Goya
BACKGROUND: Though natural surfactants (SF) are clinically superior to protein-free synthetic preparations, CHF-5633, a synthetic SF containing SP-B and SP-C analog peptides is a potential alternative to natural SF for treating neonatal respiratory distress syndrome (RDS). Nevertheless, information is lacking regarding the safety of this new treatment for the neonatal brain. We sought to compare the cerebral and pulmonary effects of this new synthetic surfactant (CHF5633) with those of natural porcine surfactant (Cursosurf) in premature lambs with RDS...
February 21, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28203337/comparison-of-the-efficacy-of-three-natural-surfactants-curosurf-survanta-and-alveofact-in-the-treatment-of-respiratory-distress-syndrome-among-neonates-a-randomized-controlled-trial
#11
Mirhadi Mussavi, Keyvan Mirnia, Khairollah Asadollahi
BACKGROUND: Although several different types of natural surfactants are available, including Alveofact, Curosurf, and Survanta, the preferred type and the magnitude of their effects are unknown. OBJECTIVES: This study was designed to compare the effects of these three surfactants on the gas exchange and clinical outcomes of neonates with respiratory distress syndrome (RDS). METHODS: This triple-blind randomized clinical trial studied all preterm neonates ≤ 37 weeks with RDS who were admitted to the neonatal intensive care unit (NICU) of Taleghani hospital (Tabriz, Iran) between 2012 and 2013...
October 2016: Iranian Journal of Pediatrics
https://www.readbyqxmd.com/read/28203330/risk-factors-for-health-care-associated-bloodstream-infections-in-a-neonatal-intensive-care-unit
#12
Sabahattin Ertugrul, Fesih Aktar, Ilyas Yolbas, Ahmet Yilmaz, Bilal Elbey, Ahmet Yildirim, Kamil Yilmaz, Recep Tekin
BACKGROUND: Healthcare-associated bloodstream infections (HCA-BSI) are a major cause of morbidity and mortality in neonatal intensive care units (NICUs). OBJECTIVES: We aimed to determine the causative organisms and risk factors of HCA-BSIs in NICUs. METHODS: This study was performed between January 2011 and December 2014 in the neonatal intensive care unit of Dicle university, Turkey. The study consisted of 126 patients (infected group) with positive blood culture and 126 randomly selected patients (uninfected control group) with negative blood culture after four days of hospitalization...
October 2016: Iranian Journal of Pediatrics
https://www.readbyqxmd.com/read/28203255/the-influencing-factors-on-procalcitonin-values-in-newborns-with-noninfectious-conditions-during-the-first-week-of-life
#13
Jueseong Lee, Yong Hyeon Bang, Eun Hee Lee, Byung Min Choi, Young Sook Hong
PURPOSE: Although procalcitonin (PCT) level is useful for the diagnosis of neonatal sepsis, PCT reliability is inconsistent because of the varied conditions encountered in neonatal intensive care units. This study aimed to investigate PCT levels and factors influencing increased PCT levelin newborns without bacterial infection during the first week of life. METHODS: In newborns hospitalized between March 2013 and October 2015, PCT levels were measured on the first, third, and seventh days after birth...
January 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28202108/-clinical-efficacy-of-pulmonary-surfactant-combined-with-budesonide-for-preventing-bronchopulmonary-dysplasia-in-very-low-birth-weight-infants
#14
Jing Pan, Ming-Wu Chen, Wen-Quan Ni, Tao Fang, Hui Zhang, Ye Chen, Jia-Hua Pan
OBJECTIVE: To explore the clinical efficacy of intratracheal instillation of pulmonary surfactant (PS) combined with budesonide for preventing bronchopulmonary dysplasia (BPD) in very low birth weight (VLBW) infants. METHODS: Thirty VLBW infants with gestational age <32 weeks who developed neonatal respiratory distress syndrome (NRDS) (grade III-IV) suffering from intrauterine infection were randomly assigned into a PS + budesonide group and a PS alone group...
February 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28194395/gender-differences-in-respiratory-morbidity-and-mortality-of-preterm-neonates
#15
REVIEW
Courtney Denise Townsel, Sawyer F Emmer, Winston A Campbell, Naveed Hussain
For the past century, researchers have underscored the "disadvantage" observed in respiratory morbidity and mortality of male newborns. In this contemporary review, we examine gender differences in preterm infant respiratory morbidity and mortality specifically appraising differences in the very low birth weight (VLBW) population as well as the late preterm (LPT) population. In the era of postnatal surfactant and antenatal corticosteroids, the gender gap in neonatal outcomes has not narrowed. Structural, physiologic, and hormonal sex differences may be at the root of this disparity...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28170341/the-effects-of-antenatal-glucocorticoid-exposure-on-fetal-and-neonatal-skin-maturation
#16
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/28151493/surfactant-reduced-the-mortality-of-neonates-with-birth-weight-%C3%A2-1500%C3%A2-g-and-hypoxemic-respiratory-failure-a-survey-from-an-emerging-nicu-network
#17
H Wang, X Gao, C Liu, C Yan, X Lin, Y Dong, B Sun
OBJECTIVE: We evaluated the efficacy of surfactant therapy and assisted ventilation on morbidity and mortality of neonates with birth weight (BW) ⩾1500 g and hypoxemic respiratory failure (HRF). STUDY DESIGN: We retrospectively analyzed 5650 patients with BW ⩾1500 g for incidence, management and outcome of HRF, defined as acute hypoxemia requiring mechanical ventilation and/or nasal continuous positive airway pressure ⩾24 h. The patients were allocated into groups of moderate preterm (1735, 30...
February 2, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28146161/providers-compliance-with-practice-guidelines-of-prenatal-and-neonatal-care-to-reduce-neonatal-mortality-2004-versus-2012
#18
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/28145652/amniotic-fluid-infection-cytokine-levels-and-mortality-and-adverse-pulmonary-intestinal-and-neurologic-outcomes-in-infants-at-32-weeks-gestation-or-less
#19
Eun Young Jung, Kyo Hoon Park, Bo Ryoung Han, Soo Hyun Cho, Ha Na Yoo, Juyoung Lee
To what extent the risks of neonatal morbidities are directly related to premature birth or to biological mechanisms of preterm birth remains uncertain. We aimed to examine the effect of exposure to amniotic fluid (AF) infection and elevated cytokine levels on the mortality and pulmonary, intestinal, and neurologic outcomes of preterm infants, and whether these associations persist after adjustment for gestational age at birth. This retrospective cohort study included 152 premature singleton infants who were born at ≤ 32 weeks...
March 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28142154/a-quality-improvement-initiative-to-reduce-the-need-for-mechanical-ventilation-in-extremely-low-gestational-age-neonates
#20
Ludivine Templin, Camille Grosse, Virginie Andres, Clotilde Des Robert, Laurence Fayol, Umberto Simeoni, Farid Boubred
Objective Limiting early intubation and mechanical ventilation in extremely low gestational age neonates (ELGAN) may decrease neonatal morbidity and mortality. The aim of our study was to demonstrate the feasibility, efficacy, and tolerability of a delivery room respiratory management protocol, including delayed umbilical cord clamping (DUCC) in combination with optimized nCPAP with high PEEP levels and less invasive surfactant administration (LISA). Study Design This cohort quality improvement study analyzed the respiratory and neonatal outcomes of all consecutive infants born between 24(+0) and 26(+6) weeks' gestation before (period 1, n = 40) and after (period 2, n = 52) implementing the new protocol...
January 31, 2017: American Journal of Perinatology
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