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Infant, lung

Jason Gien, Nancy Tseng, Gregory J Seedorf, Katherine Kuhn, Steven H Abman
Bronchopulmonary dysplasia (BPD) is the chronic lung disease associated with premature birth, characterized by impaired vascular and alveolar growth. In neonatal rats bleomycin decreases lung growth and causes pulmonary hypertension (PH), which is poorly responsive to nitric oxide. In the developing lung, through rho-kinase (ROCK) activation, ET-1 impairs endothelial cell function, however, whether ET-1-ROCK interactions contribute to impaired vascular and alveolar growth in experimental BPD is unknown. Neonatal rats were treated daily with intra-peritoneal bleomycin with and without selective ETA (BQ123/BQ610) and ETB (BQ788) receptor blockers, non-selective ET receptor blocker (ETRB) (bosentan) or fasudil (ROCK inhibitor)...
October 19, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
Emanuela Zannin, Daniela Doni, Maria Luisa Ventura, Tiziana Fedeli, Camilla Rigotti, Raffaele L Dellacá, Paolo E Tagliabue
OBJECTIVE: To characterize changes in lung mechanics and right ventricular output (RVO) during incremental/decremental continuous distending pressure (CDP) maneuvers in newborn infants receiving high-frequency oscillatory ventilation, with the aim of evaluating when open lung maneuvers are needed and whether they are beneficial. STUDY DESIGN: Thirteen infants on high-frequency oscillatory ventilation were studied with a median (IQR) gestational age of 26(1) (25(3)-29(1)) weeks and median (IQR) body weight of 810 (600-1020) g...
October 10, 2016: Journal of Pediatrics
A Kugelman, M Peniakov, S Zangen, Y Shiff, A Riskin, A Iofe, I Shoris, D Bader, S Arnon
OBJECTIVE: The efficacy of inhaled steroids in spontaneously breathing infants with established bronchopulmonary dysplasia (BPD) is debatable. The inhaled steroid hydrofluoalkane-beclomethasone dipropionate (QVAR) is unique in its small particle size that results in higher lung deposition. Our objective was to determine if inhaled QVAR could decrease respiratory rehospitalizations of infants with established BPD. STUDY DESIGN: Double-blind, randomized placebo-controlled, multicenter pilot study...
October 13, 2016: Journal of Perinatology: Official Journal of the California Perinatal Association
Jennifer F Ha, Waseem Ostwani, Glenn Green
INTRODUCTION: With the advent of improved neonatal and pediatric intensive care management, tracheostomy is increasingly performed in children requiring prolonged ventilation. Even though tracheostomy is generally a safe procedure, there remains mortality and morbidity associated with it. OBJECTIVE: We report a rare complication of a tracheostomy tube resulting in extensive erosion and posterior tracheal false pouch secondary to a large tracheostomy tube and high positive end expiratory pressure in a 12-month-old infant...
November 2016: International Journal of Pediatric Otorhinolaryngology
François Olivier, Sophie Nadeau, Georges Caouette, Bruno Piedboeuf
BACKGROUND: Late preterm infants (34-36 weeks' gestation) remain a population at risk for apnea of prematurity (AOP). As infants affected by respiratory distress syndrome (RDS) have immature lungs, they might also have immature control of breathing. Our hypothesis is that an association exists between RDS and AOP in late preterm infants. OBJECTIVE: The primary objective of this study was to assess the association between RDS and AOP in late preterm infants. The secondary objective was to evaluate if an association exists between apparent RDS severity and AOP...
2016: Frontiers in Pediatrics
Chiharu Ota, Hoeke A Baarsma, Darcy E Wagner, Anne Hilgendorff, Melanie Königshoff
Bronchopulmonary dysplasia (BPD) is one of the most common chronic lung diseases in infants caused by pre- and/or postnatal lung injury. BPD is characterized by arrested alveolarization and vascularization due to extracellular matrix remodeling, inflammation, and impaired growth factor signaling. WNT signaling is a critical pathway for normal lung development, and its altered signaling has been shown to be involved in the onset and progression of incurable chronic lung diseases in adulthood, such as chronic obstructive pulmonary disease (COPD) or idiopathic pulmonary fibrosis (IPF)...
December 2016: Molecular and Cellular Pediatrics
Mustafa Kemal Avsar, Tolga Demir, Cem Celiksular, Cenap Zeybek
BACKGROUND: PDA(Patent ductus arteriosus) is a common and clinically important condition which is presented with a number of hemodynamic and respiratory problems such as intraventricular hemorrhage, pulmonary hemorrhage and necrotizing enterocolitis due to increased pulmonary blood flow and stealing from systemic circulation. The incidence of PDA among the infants that were born before the 28th gestational week is as high as 70 %; and spontaneous closure rates in very-low-birth-weight premature neonates(VLBWPN) is around 34 %...
October 4, 2016: Journal of Cardiothoracic Surgery
Jessica Hellyer, Hunter Oliver-Allen, Majid Shafiq, Alisha Tolani, Maurice Druzin, Michael Jeng, Stanley Rockson, Robert Lowsky
Introduction Gorham-Stout Disease (GSD) is a rare disorder of bony destruction due to lymphangiomatosis, and is often triggered by hormones. One complication of GSD is the development of chylothorax, which carries a high mortality rate. Very little experience has been published to guide management in GSD during pregnancy to optimize both fetal and maternal health. Case Study A 20-year-old woman with known GSD presented with shortness of breath at 18 weeks of pregnancy, due to bilateral chylothoraces which required daily drainage...
October 2016: American Journal of Perinatology Reports
Smeeta Sardesai, Manoj Biniwale, Fiona Wertheimer, Arlene Garingo, Rangasamy Ramanathan
Respiratory distress syndrome (RDS) due to surfactant deficiency is the most common cause of respiratory failure in preterm infants. Tremendous progress has been made since the original description that surfactant deficiency is the major cause of RDS. Surfactant therapy has been extensively studied in preterm infants and has been shown to significantly decrease air leaks and neonatal and infant mortality. Synthetic and animal-derived surfactants from bovine as well as porcine origin have been evaluated in randomized controlled trials...
October 5, 2016: Pediatric Research
Steven Rothenberg
PURPOSE: Thoracoscopic lobectomy for congenital cystic lung disease has become an accepted and in many institutions the preferred technique. However, the technical challenges are many. Previous endoscopic staplers (12 mm) used commonly in adults are too large for use in infants This study evaluates the safety and efficacy of using a 5 mm stapling device to seal and divide major pulmonary structures. METHODS: From July 2014 to March 2016, 26 patients of age 6 weeks to 13 months underwent thoracoscopic lobectomy for CPAM or sequestration...
October 5, 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
Sonia Halioui-Louhaichi, Ons Azzabi, Nadia Mattoussi, Hasna Labiadh, Khadija Bousseta, Neji Tebib, Taher Gargah, Sayda Ben Becher, Mohamed Ridha Barbouch, Mohamed Bejaoui, Ahmed Maherzi
Background Primary immunodeficiencies (PID) are a group of heterogeneous and relatively rare diseases. Aim to determine the clinical characteristics, outcome and genetic data of primary immunodeficiencies in pediatrics patients. Methods A retrospective, descriptive and multicentered study, enrolling 33 children presenting a PID in Tunis, during a period of 22 years (1991-2012). Resultats a masculine predominance has been noticed with a sex ratio at 2,3. Consanguinity was found in 71% of family cases. History of early infant deaths was found in 42% of cases...
April 2016: La Tunisie Médicale
Mateusz P Karwowski, Suzette A Morman, Geoffrey S Plumlee, Terence Law, Mark Kellogg, Alan D Woolf
Though most childhood lead exposure in the USA results from ingestion of lead-based paint dust, non-paint sources are increasingly implicated. We present interdisciplinary findings from and policy implications of a case of elevated blood lead (13-18 mcg/dL, reference level <5 mcg/dL) in a 9-month-old infant, linked to a non-commercial Malaysian folk diaper powder. Analyses showed the powder contains 62 % lead by weight (primarily lead oxide) and elevated antimony [1000 parts per million (ppm)], arsenic (55 ppm), bismuth (110 ppm), and thallium (31 ppm)...
October 4, 2016: Environmental Geochemistry and Health
Maureen A Lefton-Greif, Joan C Arvedson
Speech-language pathologists (SLPs) have played primary roles in the evaluation and management of children with feeding/swallowing disorders for more than five decades. Medical, surgical, and technological advances have improved the survival of young fragile infants and children, many of whom will present with feeding/swallowing problems. Regardless of their underlying etiologies, many of these children are at risk for aspiration-induced lung disease, undernutrition or malnutrition, developmental deficits, and stressful interactions with their caregivers...
November 2016: Seminars in Speech and Language
Wanli Li, Xinjiang An, Mingyu Fu, Chunli Li
Pneumonia refers to lung inflammation caused by different pathogens or other factors, and is a common pediatric disease occurring in infants and young children. It is closely related to the anatomical and physiological characteristics of infants and young children and is more frequent during winter and spring, or sudden changes in temperature. Pneumonia is a serious disease that poses a threat to children's health and its morbidity and mortality rank first, accounting for 24.5-65.2% of pediatric inpatients...
October 2016: Experimental and Therapeutic Medicine
Simon B Drysdale, Mireia Alcazar, Theresa Wilson, Melvyn Smith, Mark Zuckerman, Hennie M Hodemaekers, Riny Janssen, Louis Bont, Sebastian L Johnston, Anne Greenough
: Term born infants are predisposed to human rhinovirus (HRV) lower respiratory tract infections (LRTI) by reduced neonatal lung function and genetic susceptibility. Our aim was to investigate whether prematurely born infants were similarly predisposed to HRV LRTIs or any other viral LRTIs. Infants born less than 36 weeks of gestational age were recruited. Prior to neonatal/maternity unit discharge, lung function (functional residual capacity by helium gas dilution and multiple breath washout, lung clearance index and compliance (Crs), and resistance (Rrs) of the respiratory system) was assessed and DNA samples assessed for eight single nucleotide polymorphisms (SNPs) in seven genes: ADAM33, IL10, MMP16 NFκB1A,SFTPC, VDR, and NOS2A...
October 1, 2016: European Journal of Pediatrics
Mary E Robbins, Duaa Dakhlallah, Clay B Marsh, Lynette K Rogers, Trent E Tipple
RATIONALE: We previously demonstrated that decreased miR-17~92 cluster expression was: 1) present in lungs from human infants who died with bronchopulmonary dysplasia (BPD); 2) inversely correlated with DNA methyltransferase (DNMT) expression and promoter methylation; 3) correlated with a subsequent diagnosis of BPD at 36 weeks' gestational age. OBJECTIVES: We tested the hypothesis that plasma miR-17 levels would be lowest in infants who ultimately develop severe BPD...
September 30, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
Ze D Jiang, Cui Wang
AIM: To examine brainstem auditory function at 36-37weeks of postconceptional age in preterm infants who are diagnosed to have neonatal chronic lung disease (CLD). STUDY DESIGN: Preterm infants, born at 31 and less weeks of gestation, were studied at 36-37weeks of postconceptional age when they were diagnosed to have neonatal CLD. Brainstem auditory evoked response (BAER) was recorded and analyzed at different click rates. RESULTS: Compared with healthy controls at the same postconceptional age, the CLD infants showed a slightly increase in BAER wave V latency...
September 28, 2016: Early Human Development
Erin V McGillick, Sandra Orgeig, Dino A Giussani, Janna L Morrison
Exposure to altered intrauterine conditions during pregnancy influences both fetal growth and organ development. Chronic fetal hypoxaemia is a common pregnancy complication associated with intrauterine growth restriction (IUGR) that may influence the risk of infants experiencing respiratory complications at birth. There are a variety of signalling pathways that contribute to normal fetal lung development at the molecular level. The specific molecular effects of chronic hypoxaemia associated with IUGR on lung development are likely to be dependent on the specific aetiology (maternal, placental and/or fetal factors) that can alter hormone concentrations, oxygen and nutrient transport to the fetus...
August 21, 2016: Paediatric Respiratory Reviews
Asuncion Mejias, Cristina Garcia-Maurino, Rosa Rodriguez-Fernandez, Mark E Peeples, Octavio Ramilo
Respiratory syncytial virus (RSV) remains a significant cause of morbidity and mortality in infants and young children, immunocompromised patients and the elderly. Despite the high disease burden, an effective and safe vaccine is lacking, although several candidates are currently in development. Current treatment for RSV infection remains largely supportive and RSV-specific options for prophylaxis are limited to palivizumab. In the past few years, novel therapeutic options including nanobodies, polyclonal and monoclonal antibodies have emerged and there are several products in preclinical and Phase-I, -II or -III clinical trials...
September 27, 2016: Vaccine
Fernanda Cordoba Lanza, Gustavo Falbo Wandalsen, Amelia Miyashiro Dos Santos, Dirceu Solé
BACKGROUND: Bronchodilator response (BDR) analyzed by the raised volume rapid thoracic compression (RVRTC) in wheezing infants is not yet well described, although bronchodilators (BD) are routine in the treatment of this population. OBJECTIVE: To evaluate BDR by RVRTC technique in infants with recurrent wheezing and compare to control group. METHOD: Cross sectional study, 45 infants, age 56 weeks (38-67 weeks). Two groups: wheezing group (WG: history of recurrent wheezing) and control group (CG)...
October 2016: Respiratory Medicine
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