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https://www.readbyqxmd.com/read/28441181/inhaled-treprostinil-drug-delivery-during-mechanical-ventilation-and-spontaneous-breathing-using-two-different-nebulizers
#1
Donna K Parker, Shuijie Shen, Jiang Zheng, D Dunbar Ivy, Dave N Crotwell, Justin C Hotz, Robert M DiBlasi
OBJECTIVES: To determine the feasibility of delivering inhaled treprostinil during mechanical ventilation and spontaneous unassisted ventilation using the Tyvaso Inhalation System and the vibrating mesh nebulizer. We sought to compare differences in fine particle fraction, and absolute inhaled treprostinil mass delivered to neonatal, pediatric, and adult models affixed with a face mask, conventional, and high-frequency ventilation between Tyvaso Inhalation System and with different nebulizer locations between Tyvaso Inhalation System and vibrating mesh nebulizer...
April 22, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28440911/unnoticed-aspiration-of-palate-plate-impression-material-in-a-neonate-diagnosis-therapy-outcome
#2
Friedrich Reichert, Peter Amrhein, Frank Uhlemann
A 7 week old infant was admitted with respiratory failure. Chest X-ray showed an atelectatic right upper lobe, herniation of right middle and lower lobe into the left thorax, and compression-atelectasis of the left lung. Thoracic CT showed complete occlusion of the right superior bronchus with a radiopaque foreign material. Six weeks prior, an impression for a palate plate using polyvinylsiloxane was taken. The material was removed with a rigid endoscopy, in readiness of extracorporeal oxygenation in case of tracheal obstruction or bronchial rupture...
April 25, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28440869/massive-pleural-effusion-on-the-contralateral-side-of-a-venous-peripherally-inserted-central-catheter
#3
Selim Sancak, Abdulhamit Tuten, Tulin Gokmen Yildirim, Guner Karatekin
A preterm newborn infant, delivered at 30 weeks of gestation and 965 g birth weight, developed respiratory distress with resistant hypoxia after a central catheter line was inserted via the right venae brachialis on postnatal day 21. Left-sided massive pleural effusion, collapsed left lung with air bronchograms, and bidirectional shunting through reopened ductus arteriosus were detected by targeted neonatal echocardiography. Hydrothorax was drained under sonographic guidance, producing a milky-white fluid biochemically compatible with parenteral nutrition...
April 25, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28440792/an-extra-uterine-system-to-physiologically-support-the-extreme-premature-lamb
#4
Emily A Partridge, Marcus G Davey, Matthew A Hornick, Patrick E McGovern, Ali Y Mejaddam, Jesse D Vrecenak, Carmen Mesas-Burgos, Aliza Olive, Robert C Caskey, Theodore R Weiland, Jiancheng Han, Alexander J Schupper, James T Connelly, Kevin C Dysart, Jack Rychik, Holly L Hedrick, William H Peranteau, Alan W Flake
In the developed world, extreme prematurity is the leading cause of neonatal mortality and morbidity due to a combination of organ immaturity and iatrogenic injury. Until now, efforts to extend gestation using extracorporeal systems have achieved limited success. Here we report the development of a system that incorporates a pumpless oxygenator circuit connected to the fetus of a lamb via an umbilical cord interface that is maintained within a closed 'amniotic fluid' circuit that closely reproduces the environment of the womb...
April 25, 2017: Nature Communications
https://www.readbyqxmd.com/read/28439384/characteristics-of-neonatal-pneumothorax-in-saudi-arabia-three-years-experience
#5
Abdulrahman Al Matary, Humariya H Munshi, Sameh Abozaid, Mostafa Qaraqei, Tariq A Wani, Amani K Abu-Shaheen
OBJECTIVES: To identify the incidence, clinical characteristics, predisposing factors, morbidity, and mortality among hospitalized neonates with pneumothorax. METHODS: The records of 2 204 infants admitted to the neonatal intensive care unit at King Fahad Medical City, Saudi Arabia, between 2011 and 2014 were reviewed. All newborns hospitalized in the neonatal intensive care unit with pneumothorax were included in the study. Participants were evaluated for baseline characteristics, predisposing factors of neonatal pneumothorax (NP), accompanying disorders, and mortality...
March 2017: Oman Medical Journal
https://www.readbyqxmd.com/read/28438602/hyperoxia-exposure-disrupts-adrenomedullin-signaling-in-newborn-mice-implications-for-lung-development-in-premature-infants
#6
Renuka T Menon, Amrit Kumar Shrestha, Binoy Shivanna
Hyperoxia contributes to the development of bronchopulmonary dysplasia (BPD), a chronic lung disease of human infants that is characterized by disrupted lung angiogenesis. Adrenomedullin (AM) is a multifunctional peptide with angiogenic and vasoprotective properties. AM signals via its cognate receptors, calcitonin receptor-like receptor (Calcrl) and receptor activity-modifying protein 2 (RAMP2). Whether hyperoxia affects the pulmonary AM signaling pathway in neonatal mice and whether AM promotes lung angiogenesis in human infants are unknown...
April 21, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28436965/a-three-dimensional-model-of-human-lung-development-and-disease-from-pluripotent-stem-cells
#7
Ya-Wen Chen, Sarah Xuelian Huang, Ana Luisa Rodrigues Toste de Carvalho, Siu-Hong Ho, Mohammad Naimul Islam, Stefano Volpi, Luigi D Notarangelo, Michael Ciancanelli, Jean-Laurent Casanova, Jahar Bhattacharya, Alice F Liang, Laura M Palermo, Matteo Porotto, Anne Moscona, Hans-Willem Snoeck
Recapitulation of lung development from human pluripotent stem cells (hPSCs) in three dimensions (3D) would allow deeper insight into human development, as well as the development of innovative strategies for disease modelling, drug discovery and regenerative medicine. We report here the generation from hPSCs of lung bud organoids (LBOs) that contain mesoderm and pulmonary endoderm and develop into branching airway and early alveolar structures after xenotransplantation and in Matrigel 3D culture. Expression analysis and structural features indicated that the branching structures reached the second trimester of human gestation...
April 24, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28426693/influence-of-prenatal-hypoxia-and-postnatal-hyperoxia-on-morphologic-lung-maturation-in-mice
#8
Andreas Schmiedl, Torge Roolfs, Erol Tutdibi, Ludwig Gortner, Dominik Monz
BACKGROUND: Oxygen supply as a lifesaving intervention is frequently used to treat preterm infants suffering additionally from possible prenatal or perinatal pathogen features. The impact of oxygen and/or physical lung injury may influence the morphological lung development, leading to a chronic postnatal lung disease called bronchopulmonary dysplasia (BPD). At present different experimental BPD models are used. However, there are no systematic comparative studies regarding different influences of oxygen on morphological lung maturation...
2017: PloS One
https://www.readbyqxmd.com/read/28422514/vitamin-c-prevents-offspring-dna-methylation-changes-associated-with-maternal-smoking-in-pregnancy
#9
Lyndsey E Shorey-Kendrick, Cindy T McEvoy, Betsy Ferguson, Julja Burchard, Byung S Park, Lina Gao, Brittany H Vuylsteke, Kristin F Milner, Cynthia D Morris, Eliot R Spindel
BACKGROUND: Infants whose mothers smoked during pregnancy demonstrate lifelong decreases in pulmonary function. DNA methylation changes associated with maternal smoking during pregnancy have been described in placenta and cord blood at delivery, in fetal lung, and in buccal epithelium and blood during childhood. We recently demonstrated in a randomized clinical trial (NCT00632476) that vitamin C supplementation to pregnant smokers can lessen the impact of maternal smoking on offspring pulmonary function and decrease the incidence of wheeze at one year of age...
April 19, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28417451/prophylactic-anti-staphylococcal-antibiotics-for-cystic-fibrosis
#10
REVIEW
Alan R Smyth, Margaret Rosenfeld
BACKGROUND: Staphylococcus aureus causes pulmonary infection in young children with cystic fibrosis. Prophylactic antibiotics are prescribed hoping to prevent such infection and lung damage. Antibiotics have adverse effects and long-term use might lead to infection with Pseudomonas aeruginosa. This is an update of a previously published review. OBJECTIVES: To assess continuous oral antibiotic prophylaxis to prevent the acquisition of Staphylococcus aureus versus no prophylaxis in people with cystic fibrosis, we tested these hypotheses...
April 18, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28417152/review-of-surgical-and-anesthetic-management-for-esophageal-atresia-with-tracheoesophageal-fistula-unilateral-pulmonary-agenesis-and-dextrocardia
#11
Rebecca M Rentea, Tolulope A Oyetunji, John Erkmann, Joshua Q Knowlton, Richard J Hendrickson
Association of unilateral severe pulmonary atresia or agenesis and esophageal atresia (EA) with or without tracheoesophageal fistula (TEF) and dextrocardia is a rare and highly lethal combination. We report a case of a full-term female infant who had EA with TEF, right lung agenesis, and dextrocardia. Repair of the fistula took place on day of life 3. We describe anesthetic and surgical concerns of this patient's case which are keys to a good operative outcome as well as follow-up for the patient.
April 17, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28413132/development-of-an-intradermal-dna-vaccine-delivery-strategy-to-achieve-single-dose-immunity-against-respiratory-syncytial-virus
#12
Trevor R F Smith, Katherine Schultheis, Matthew P Morrow, Kimberly A Kraynyak, Jay R McCoy, Kevin C Yim, Karuppiah Muthumani, Laurent Humeau, David B Weiner, Niranjan Y Sardesai, Kate E Broderick
Respiratory syncytial virus (RSV) is a massive medical burden in infants, children and the elderly worldwide, and an effective, safe RSV vaccine remains an unmet need. Here we assess a novel vaccination strategy based on the intradermal delivery of a SynCon® DNA-based vaccine encoding engineered RSV-F antigen using a surface electroporation device (SEP) to target epidermal cells, in clinically relevant experimental models. We demonstrate the ability of this strategy to elicit robust immune responses. Importantly we demonstrate complete resistance to pulmonary infection at a single low dose of vaccine in the cotton rat RSV/A challenge model...
April 13, 2017: Vaccine
https://www.readbyqxmd.com/read/28408368/neonatal-airway-challenging-endotracheal-intubation-in-infants-with-tracheal-malformations-at-birth
#13
Arpan Agarwal, Masakazu Nakao, Victor Samuel Rajadurai, Suresh Chandran
Intubating newborn infants can be exacting. We describe two cases of endotracheal intubations in infants born with tracheal malformations. A male infant aged 30 weeks required intubation at birth for respiratory distress. Repeated attempts at intubation failed to achieve an optimal endotracheal tube position as the tube could not advance beyond the vocal cords. Hence ventilation continued with suboptimal air entry in the lungs. Bronchoscopy and CT scan confirmed tracheal stenosis. Slide tracheoplasty was successfully executed on day 78 of life...
April 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28405541/it-s-rare-so-be-aware-pleuropulmonary-blastoma-mimicking-congenital-pulmonary-airway-malformation
#14
Fayza Haider, Khulood Al Saad, Fatima Al-Hashimi, Hakima Al-Hashimi
Pleuropulmonary blastoma (PPB) is a rare aggressive malignant tumor of infancy and early childhood. The tumor arises in the lung and pleura and is regarded as a pulmonary dysontogenetic or embryonic neoplasm. Four types are defined in literature. Type I PPB is a rare, cystic lung neoplasm in infants characterized by subtle malignant changes and a good prognosis. Recurrences after type I PPB are usually advanced with a poor prognosis. We report this case to increase awareness about this entity so that the pediatricians, pediatric surgeons, radiologist, and pathologist recognize it early...
January 2017: Thoracic and Cardiovascular Surgeon Reports
https://www.readbyqxmd.com/read/28404216/lung-ultrasonography-to-diagnose-pneumothorax-of-the-newborn
#15
Jing Liu, Jing-Han Chi, Xiao-Ling Ren, Jie Li, Ya-Juan Chen, Zu-Lin Lu, Ying Liu, Wei Fu, Rong-Ming Xia
OBJECTIVE: To explore the reliability and accuracy of lung ultrasound for diagnosing neonatal pneumothorax. METHODS: This study was divided into two phases. (1) In the first phase, from January 2013 to June 2015, 40 patients with confirmed pneumothorax had lung ultrasound examinations performed to identify the sonographic characteristics of neonatal pneumothorax. (2) In the second phase, from July 2015 to August 2016, lung ultrasound was undertaken on 50 newborn infants with severe lung disease who were suspected of having pneumothorax, to evaluate the sonographic accuracy and reliability to diagnose pneumothorax...
April 3, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28402248/autoantibodies-against-gpihbp1-as-a-cause-of-hypertriglyceridemia
#16
Anne P Beigneux, Kazuya Miyashita, Michael Ploug, Dirk J Blom, Masumi Ai, MacRae F Linton, Weerapan Khovidhunkit, Robert Dufour, Abhimanyu Garg, Maureen A McMahon, Clive R Pullinger, Norma P Sandoval, Xuchen Hu, Christopher M Allan, Mikael Larsson, Tetsuo Machida, Masami Murakami, Karen Reue, Peter Tontonoz, Ira J Goldberg, Philippe Moulin, Sybil Charrière, Loren G Fong, Katsuyuki Nakajima, Stephen G Young
Background A protein that is expressed on capillary endothelial cells, called GPIHBP1 (glycosylphosphatidylinositol-anchored high-density lipoprotein binding protein 1), binds lipoprotein lipase and shuttles it to its site of action in the capillary lumen. A deficiency in GPIHBP1 prevents lipoprotein lipase from reaching the capillary lumen. Patients with GPIHBP1 deficiency have low plasma levels of lipoprotein lipase, impaired intravascular hydrolysis of triglycerides, and severe hypertriglyceridemia (chylomicronemia)...
April 5, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28399119/caffeine-ameliorates-hyperoxia-induced-lung-injury-by-protecting-gch1-function-in-neonatal-rat-pups
#17
Xigang Jing, Yi-Wen Huang, Jason Jarzembowski, Yang Shi, Girija G Konduri, Ru-Jeng Teng
BACKGROUND: Bronchopulmonary dysplasia (BPD) is a major morbidity in premature infants, and impaired angiogenesis is considered a major contributor to BPD. Early caffeine treatment decreases the incidence of BPD; the mechanism remains incompletely understood. METHODS: Sprague-Dawley rat pups exposed to normoxia or hyperoxia since birth were treated daily with either 20 mg/kg caffeine or normal saline by intraperitoneal injection from day 2 of life. Lungs were obtained for studies at day 10 and 21...
April 11, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28398697/effects-of-targeting-lower-versus-higher-arterial-oxygen-saturations-on-death-or-disability-in-preterm-infants
#18
REVIEW
Lisa M Askie, Brian A Darlow, Peter G Davis, Neil Finer, Ben Stenson, Maximo Vento, Robin Whyte
BACKGROUND: The use of supplemental oxygen in the care of extremely preterm infants has been common practice since the 1940s. Despite this, there is little agreement regarding which oxygen saturation (SpO₂) ranges to target to maximise short- or long-term growth and development, while minimising harms. There are two opposing concerns. Lower oxygen levels (targeting SpO₂ at 90% or less) may impair neurodevelopment or result in death. Higher oxygen levels (targeting SpO₂ greater than 90%) may increase severe retinopathy of prematurity or chronic lung disease...
April 11, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28398665/both-a-frameshift-and-a-missense-mutation-of-the-stra6-gene-observed-in-an-infant-with-the-matthew-wood-syndrome
#19
Samantha Sadowski, Nicolas Chassaing, Zuzanna Gaj, Ewa Czichos, Jan Wilczynski, Dorota Nowakowska
BACKGROUND: The Matthew-Wood syndrome is associated with mutations of the STRA6 gene. It combines a pulmonary agenesis/hypoplasia; microphthalmia/anophthalmia; congenital cardiac, digestive, and urogenital malformations; and diaphragmatic defects. CASE: A 23-year-old nulliparous woman was referred to our center after a fetal ultrasound examination at 26 weeks of pregnancy revealed an abnormal head shape, a heart malformation, multiple cysts in both kidneys, and dilated ureters...
March 1, 2017: Birth Defects Res
https://www.readbyqxmd.com/read/28396921/mri-findings-of-chronic-abruption-oligohydramnios-sequence-caos-report-of-three-cases
#20
Yasuhisa Kurata, Aki Kido, Sachiko Minamiguchi, Eiji Kondoh, Kaori Togashi
Chronic abruption-oligohydramnios sequence (CAOS), characterized by chronic vaginal hemorrhage and oligohydramnios, is a rare clinical condition of pregnancy. Because CAOS is associated with preterm delivery and lung injury to the infant, it is a major clinical concern. This report describes three CAOS cases which presented characteristic MRI findings reflecting CAOS pathological mechanisms and pathological findings. First, in all cases, the placenta detached from the uterus at the peripheral portion of the placenta because of placental marginal hematoma...
April 10, 2017: Abdominal Radiology
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