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ventilator associated lung injury

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https://www.readbyqxmd.com/read/29324568/effects-of-pressure-support-ventilation-on-ventilator-induced-lung-injury-in-mild-acute-respiratory-distress-syndrome-depend-on-level-of-positive-end-expiratory-pressure
#1
Paulo A F Magalhães, Gisele de A Padilha, Lillian Moraes, Cíntia L Santos, Ligia de A Maia, Cassia L Braga, Maria do Carmo M B Duarte, Lívia B Andrade, Alberto Schanaider, Vera L Capellozzi, Robert Huhle, Marcelo Gama de Abreu, Paolo Pelosi, Patricia R M Rocco, Pedro L Silva
BACKGROUND: Harmful effects of spontaneous breathing have been shown in experimental severe acute respiratory distress syndrome (ARDS). However, in the clinical setting, spontaneous respiration has been indicated only in mild ARDS. To date, no study has compared the effects of spontaneous assisted breathing with those of fully controlled mechanical ventilation at different levels of positive end-expiratory pressure (PEEP) on lung injury in ARDS. OBJECTIVE: To compare the effects of assisted pressure support ventilation (PSV) with pressure-controlled ventilation (PCV) on lung function, histology and biological markers at two different PEEP levels in mild ARDS in rats...
January 10, 2018: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/29320485/non-invasive-ventilation-and-surfactant-treatment-as-primary-mode-of-respiratory-support-in-surfactant-deficient-newborn-piglets
#2
Carmen Rey-Santano, Victoria E Mielgo, Miguel Angel Gomez-Solaetxe, Francesca Ricci, Federico Bianco, Fabrizio Salomone, Begoña Loureiro, Jon López de Heredia Y Goya
BACKGROUND: Nasal continuous positive airway pressure (NCPAP) and nasal intermittent positive pressure ventilation (NIPPV), forms of non-invasive ventilation (NIV) for respiratory support, are increasingly being chosen as the initial treatment for neonates with surfactant (SF) deficiency. Our objective was to compare NCPAP with NIPPV with or without SF administration as a primary mode of ventilation. METHODS: Twenty-four newborn piglets with SF-deficient lung injury produced by repetitive bronchoalveolar lavages were randomly assigned to NCPAP or NIPPV, with or without SF administration (InSurE method)...
January 10, 2018: Pediatric Research
https://www.readbyqxmd.com/read/29312748/acute-respiratory-distress-syndrome-in-traumatic-brain-injury-how-do-we-manage-it
#3
REVIEW
Valentina Della Torre, Rafael Badenes, Francesco Corradi, Fabrizio Racca, Andrea Lavinio, Basil Matta, Federico Bilotta, Chiara Robba
Traumatic brain injury (TBI) is an important cause of morbidity and mortality worldwide. TBI patients frequently suffer from lung complications and acute respiratory distress syndrome (ARDS), which is associated with poor clinical outcomes. Moreover, the association between TBI and ARDS in trauma patients is well recognized. Mechanical ventilation of patients with a concomitance of acute brain injury and lung injury can present significant challenges. Frequently, guidelines recommending management strategies for patients with traumatic brain injuries come into conflict with what is now considered best ventilator practice...
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29304863/gm-csf-overexpression-after-influenza-a-virus-infection-prevents-mortality-and-moderates-m1-like-airway-monocyte-macrophage-polarization
#4
E Scott Halstead, Todd M Umstead, Michael L Davies, Yuka Imamura Kawasawa, Patricia Silveyra, Judie Howyrlak, Linlin Yang, Weichao Guo, Sanmei Hu, Eranda Kurundu Hewage, Zissis C Chroneos
BACKGROUND: Influenza A viruses cause life-threatening pneumonia and lung injury in the lower respiratory tract. Application of high GM-CSF levels prior to infection has been shown to reduce morbidity and mortality from pathogenic influenza infection in mice, but the mechanisms of protection and treatment efficacy have not been established. METHODS: Mice were infected intranasally with influenza A virus (PR8 strain). Supra-physiologic levels of GM-CSF were induced in the airways using the double transgenic GM-CSF (DTGM) or littermate control mice starting on 3 days post-infection (dpi)...
January 5, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29300236/contemporary-risk-factors-and-outcomes-of-transfusion-associated-circulatory-overload
#5
Nareg H Roubinian, Jeanne E Hendrickson, Darrell J Triulzi, Jerome L Gottschall, Michael Michalkiewicz, Dhuly Chowdhury, Daryl J Kor, Mark R Looney, Michael A Matthay, Steven H Kleinman, Donald Brambilla, Edward L Murphy
OBJECTIVES: Transfusion-associated circulatory overload is characterized by hydrostatic pulmonary edema following blood transfusion. Restrictive transfusion practice may affect the occurrence and severity of transfusion-associated circulatory overload in critically ill patients. We sought to examine contemporary risk factors and outcomes for transfusion-associated circulatory overload. DESIGN: Case-control study. SETTING: Four tertiary care hospitals...
January 3, 2018: Critical Care Medicine
https://www.readbyqxmd.com/read/29282039/plasma-levels-of-alarmin-hnps-1-3-associate-with-lung-dysfunction-after-cardiac-surgery-in-children
#6
XiWang Liu, QiXing Chen, YuJia Luo, YaoQin Hu, DengMing Lai, XiaoLe Zhang, XiangHong Zhang, JianGen Yu, XiangMing Fang, Qiang Shu
BACKGROUND: Early onset of lung injury is considerable common after cardiac surgery and is associated with increasing in morbidity and mortality, but current clinical predictors for the occurrence of this complication always have limited positive warning value. This study aimed to evaluate whether elevated plasma levels of human neutrophil peptides (HNPs) 1-3 herald impaired lung function in infants and young children after cardiac surgery necessitating cardiopulmonary bypass (CPB). METHODS: Consecutive children younger than 3 years old who underwent cardiac surgery were prospectively enrolled...
December 28, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29280967/biomarkers-for-pulmonary-inflammation-and-fibrosis-and-lung-ventilation-function-in-chinese-occupational-refractory-ceramic-fibers-exposed-workers
#7
Xiaojun Zhu, Yishuo Gu, Wenjun Ma, Panjun Gao, Mengxuan Liu, Pei Xiao, Hongfei Wang, Juan Chen, Tao Li
Refractory ceramic fibers (RCFs) can cause adverse health effects on workers' respiratory system, yet no proper biomarkers have been used to detect early pulmonary injury of RCFs-exposed workers. This study assessed the levels of two biomarkers that are related to respiratory injury in RCFs-exposed workers, and explored their relations with lung function. The exposure levels of total dust and respirable fibers were measured simultaneously in RCFs factories. The levels of TGF-β1 and ceruloplasmin (CP) increased with the RCFs exposure level (p < 0...
December 27, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29275926/variation-in-positive-end-expiratory-pressure-levels-for-mechanically-ventilated-extremely-low-birth-weight-infants
#8
Nicolas A Bamat, James P Guevara, Matthew Bryan, Robin S Roberts, Bradley A Yoder, Brigitte Lemyre, Aaron Chiu, David Millar, Haresh Kirpalani
OBJECTIVE: To test the hypothesis that significant positive end-expiratory pressure (PEEP) level variation exists between neonatal centers. STUDY DESIGN: We performed a secondary analysis cohort study of the Nasal Intermittent Positive-Pressure Ventilation trial. Our study population was extremely low birth weight infants requiring mechanical ventilation within 28 days of life. The exposure was neonatal center; 34 international centers participated in the trial...
December 22, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29261721/the-multistep-road-to-ventilator-associated-lung-abscess-a-retrospective-study-of-s-aureus-ventilator-associated-pneumonia
#9
Roman Mounier, David Lobo, Julia Voulgaropoulos, Mathieu Martin, Bouziane Aït-Mamar, Valérie Bitot, Paul-Henri Jost, Ron Birnbaum, Biba Nebbad, Fabrice Cook, Gilles Dhonneur
OBJECT: We observed some cases of lung abscess (LA) in ICU patients suffering S.aureus ventilator-associated pneumonia (S.aureus-VAP). We aimed to assess which of the host and/or bacteria-related features are associated with LA. METHODS: We conducted a retrospective study from January 2009 to July 2013 in a trauma surgical ICU within a teaching hospital. All adult patients presenting with S.aureus-VAP were included. We compared two groups of patients according to the formation or not of LA concomitantly to S...
2017: PloS One
https://www.readbyqxmd.com/read/29261565/oxygen-exposure-resulting-in-arterial-oxygen-tensions-above-the-protocol-goal-was-associated-with-worse-clinical-outcomes-in-acute-respiratory-distress-syndrome
#10
Neil R Aggarwal, Roy G Brower, David N Hager, B Taylor Thompson, Giora Netzer, Carl Shanholtz, Adrian Lagakos, William Checkley
OBJECTIVES: High fractions of inspired oxygen may augment lung damage to exacerbate lung injury in patients with acute respiratory distress syndrome. Participants enrolled in Acute Respiratory Distress Syndrome Network trials had a goal partial pressure of oxygen in arterial blood range of 55-80 mm Hg, yet the effect of oxygen exposure above this arterial oxygen tension range on clinical outcomes is unknown. We sought to determine if oxygen exposure that resulted in a partial pressure of oxygen in arterial blood above goal (> 80 mm Hg) was associated with worse outcomes in patients with acute respiratory distress syndrome...
December 19, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/29247675/adrenergic-and-glucocorticoid-receptor-antagonists-reduce-ozone-induced-lung-injury-and-inflammation
#11
Andres R Henriquez, Samantha J Snow, Mette C Schladweiler, Colette N Miller, Janice A Dye, Allen D Ledbetter, Judy E Richards, Kevin Mauge-Lewis, Marie A McGee, Urmila P Kodavanti
Recent studies showed that the circulating stress hormones, epinephrine and corticosterone/cortisol, are involved in mediating ozone-induced pulmonary effects through the activation of the sympathetic-adrenal-medullary (SAM) and hypothalamus-pituitary-adrenal (HPA) axes. Hence, we examined the role of adrenergic and glucocorticoid receptor inhibition in ozone-induced pulmonary injury and inflammation. Male 12-week old Wistar-Kyoto rats were pretreated daily for 7days with propranolol (PROP; a non-selective β adrenergic receptor [AR] antagonist, 10mg/kg, i...
January 15, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29236845/comparison-between-conventional-protective-mechanical-ventilation-and-high-frequency-oscillatory-ventilation-associated-with-the-prone-position
#12
José Roberto Fioretto, Susiane Oliveira Klefens, Rafaelle Fernandes Pires, Cilmery Suemi Kurokawa, Mario Ferreira Carpi, Rossano César Bonatto, Marcos Aurélio Moraes, Carlos Fernando Ronchi
OBJECTIVE: To compare the effects of high-frequency oscillatory ventilation and conventional protective mechanical ventilation associated with the prone position on oxygenation, histology and pulmonary oxidative damage in an experimental model of acute lung injury. METHODS: Forty-five rabbits with tracheostomy and vascular access were underwent mechanical ventilation. Acute lung injury was induced by tracheal infusion of warm saline. Three experimental groups were formed: healthy animals + conventional protective mechanical ventilation, supine position (Control Group; n = 15); animals with acute lung injury + conventional protective mechanical ventilation, prone position (CMVG; n = 15); and animals with acute lung injury + high-frequency oscillatory ventilation, prone position (HFOG; n = 15)...
December 7, 2017: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/29221272/goal-directed-fluid-restriction-using-stroke-volume-variation-and-cardiac-index-during-one-lung-ventilation-a-randomized-controlled-trial
#13
Hui Xu, Shu-Hua Shu, Di Wang, Xiao-Qing Chai, Yan-Hu Xie, Wei-De Zhou
Background: Goal-directed therapy confers a strong prognosis in patients undergoing major cardiac or noncardiac surgery. The present study investigated whether intraoperative goal-directed fluid restriction (GDFR) using stroke volume variation (SVV) and cardiac index could improve oxygenation and postoperative outcome in patients undergoing one-lung ventilation (OLV). Methods: A Total of 168 patients scheduled for elective thoracoscopic lobectomy under OLV were randomized into the GDFR protocol (group G) or conventional fluid therapy groups (group C)...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29220407/respiratory-resistance-and-reactance-in-adults-with-sickle-cell-anemia-correlation-with-functional-exercise-capacity-and-diagnostic-use
#14
Cirlene de Lima Marinho, Maria Christina Paixão Maioli, Jorge Luis Machado do Amaral, Agnaldo José Lopes, Pedro Lopes de Melo
BACKGROUND: The improvement in sickle cell anemia (SCA) care resulted in the emergence of a large population of adults living with this disease. The mechanisms of lung injury in this new population are largely unknown. The forced oscillation technique (FOT) represents the current state-of-the-art in the assessment of lung function. The present work uses the FOT to improve our knowledge about the respiratory abnormalities in SCA, evaluates the associations of FOT with the functional exercise capacity and investigates the early detection of respiratory abnormalities...
2017: PloS One
https://www.readbyqxmd.com/read/29216437/epha2-modulation-associates-with-protective-effect-of-prone-position-in-ventilator-induced-lung-injury
#15
Byung Hoon Park, Mi Hwa Shin, Ivor S Douglas, Kyung Soo Chung, Joo Han Song, Song Yee Kim, Eun Young Kim, Ji Ye Jung, Young Ae Kang, Joon Chang, Young Sam Kim, Moo Suk Park
The erythropoietin-producing hepatoma receptor tyrosine kinase A2 (EphA2) and its ligand ephrinA1 play a pivotal role in inflammation and tissue injury by modulating the epithelial and endothelial barrier integrity. Therefore, EphA2 receptor may be a potential therapeutic target for modulating ventilator-induced lung injury (VILI). To support this hypothesis, here we analyzed EphA2/ephrinA1 signaling in the process of VILI and determined the role of EphA2/ephrinA1 signaling in the protective mechanism of prone positioning in a VILI model...
December 7, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/29212551/extracorporeal-membrane-oxygenation-for-life-threatening-asthma-refractory-to-mechanical-ventilation-analysis-of-the-extracorporeal-life-support-organization-registry
#16
Hye Ju Yeo, Dohyung Kim, Doosoo Jeon, Yun Seong Kim, Peter Rycus, Woo Hyun Cho
BACKGROUND: The use of extracorporeal membrane oxygenation (ECMO) in cases of near-fatal asthma (NFA) has increased, but the benefits and potential complications of this therapy have yet to be fully investigated. METHODS: Cases were extracted from the Extracorporeal Life Support Organization Registry between March 1992 and March 2016. All patients with a diagnosis of asthma (according to the International Classification of Diseases 9th edition), who also received ECMO, were extracted...
December 6, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29194339/risk-factors-for-the-development-of-acute-respiratory-distress-syndrome-following-hemorrhage
#17
Bryce R H Robinson, Mitchell J Cohen, John B Holcomb, Timothy A Pritts, Dina Gomaa, Erin E Fox, Richard D Branson, Rachael A Callcut, Bryan A Cotton, Martin A Schreiber, Karen J Brasel, Jean-Francois Pittet, Kenji Inaba, Jeffery D Kerby, Thomas M Scalea, Charlie E Wade, Eileen M Bulger
BACKGROUND: The Pragmatic Randomized Optimal Platelet and Plasma Ratios (PROPPR) study evaluated the effects of plasma and platelets on hemostasis and mortality after hemorrhage. The pulmonary consequences of resuscitation strategies that mimic whole blood, remain unknown. METHODS: A secondary analysis of the PROPPR study was performed. Injured patients predicted to receive a massive transfusion were randomized to 1:1:1 vs. 1:1:2 plasma-platelet-RBC ratios at 12 Level I North American trauma centers...
November 30, 2017: Shock
https://www.readbyqxmd.com/read/29194281/rbc-transfusions-are-associated-with-prolonged-mechanical-ventilation-in-pediatric-acute-respiratory-distress-syndrome
#18
Michael E Zubrow, Neal J Thomas, David F Friedman, Nadir Yehya
OBJECTIVES: Blood products are often transfused in critically ill children, although recent studies have recognized their potential for harm. Translatability to pediatric acute respiratory distress syndrome is unknown given that hypoxemia has excluded pediatric acute respiratory distress syndrome patients from clinical trials. We aimed to determine whether an association exists between blood product transfusion and survival or duration of ventilation in pediatric acute respiratory distress syndrome...
November 30, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/29181137/transfusion-related-acute-lung-injury-trali-in-two-thalassaemia-patients-caused-by-the-same-multiparous-blood-donor
#19
Annita Kolnagou, Christina N Kontoghiorghe, George J Kontoghiorghes
We report two separate episodes of transfusion-related acute lung injury (TRALI) in two thalassaemia patients who received red blood cell transfusions from the same multiparous donor. Both cases had the same symptomatology and occurred within 60 minutes of transfusion. The patients presented dyspnoea, sweating, fatigue, dizziness, fever, and sense of losing consciousness. The chest x-ray showed a pulmonary oedema-like picture with both lungs filled with fluid. The patients were treated in the intensive therapy unit...
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/29170364/acute-fibrinous-and-organizing-pneumonia-a-case-report-and-review-of-the-literature
#20
Daniel Arnaud, Zoya Surani, Abhay Vakil, Joseph Varon, Salim Surani
BACKGROUND Acute fibrinous organizing pneumonia (AFOP) is a rare condition of the lung that is associated with acute lung injury, and has a poor prognosis. AFOP is characterized histologically by intra-alveolar fibrin. AFOP has been described to be associated with lung infections, connective tissue disorders, drugs, toxic environmental exposure, and in lung transplantation. However, most cases of AFOP remain idiopathic, and because the condition can present with a wide variety of clinical manifestations, open lung biopsy or video-assisted thoracoscopic (VAT) lung biopsy is necessary for the diagnosis...
November 24, 2017: American Journal of Case Reports
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