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Acute respiratory distress syndrom

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https://www.readbyqxmd.com/read/28542443/effects-of-pressure-support-and-pressure-controlled-ventilation-on-lung-damage-in-a-model-of-mild-extrapulmonary-acute-lung-injury-with-intra-abdominal-hypertension
#1
Cintia L Santos, Raquel S Santos, Lillian Moraes, Cynthia S Samary, Nathane S Felix, Johnatas D Silva, Marcelo M Morales, Robert Huhle, Marcelo G Abreu, Alberto Schanaider, Pedro L Silva, Paolo Pelosi, Patricia R M Rocco
Intra-abdominal hypertension (IAH) may co-occur with the acute respiratory distress syndrome (ARDS), with significant impact on morbidity and mortality. Lung-protective controlled mechanical ventilation with low tidal volume and positive end-expiratory pressure (PEEP) has been recommended in ARDS. However, mechanical ventilation with spontaneous breathing activity may be beneficial to lung function and reduce lung damage in mild ARDS. We hypothesized that preserving spontaneous breathing activity during pressure support ventilation (PSV) would improve respiratory function and minimize ventilator-induced lung injury (VILI) compared to pressure-controlled ventilation (PCV) in mild extrapulmonary acute lung injury (ALI) with IAH...
2017: PloS One
https://www.readbyqxmd.com/read/28542440/plasma-kallistatin-in-critically-ill-patients-with-severe-sepsis-and-septic-shock
#2
Wei-Chieh Lin, Chang-Wen Chen, Lee Chao, Julie Chao, Yee-Shin Lin
Kallistatin, an endogenous serine proteinase inhibitor, is protective against sepsis in animal models. The aim of this study was to determine the plasma concentration of kallistatin in intensive care unit (ICU) patients with severe sepsis and septic shock and to determine their potential correlation with disease severity and outcomes. We enrolled 86 ICU patients with severe sepsis and septic shock. Their plasma concentrations of kallistatin, kallikrein, tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6, and IL-8 were measured by enzyme-linked immunosorbent assay...
2017: PloS One
https://www.readbyqxmd.com/read/28541510/optimization-of-linezolid-therapy-in-the-critically-ill-the-effect-of-adjusted-infusion-regimens
#3
Max Taubert, Johannes Zander, Sebastian Frechen, Christina Scharf, Lorenz Frey, Michael Vogeser, Uwe Fuhr, Michael Zoller
Objectives: Insufficient linezolid levels, which are associated with a poorer outcome, are often observed in ICU patients who receive standard dosing. Although strategies to overcome these insufficient levels have been discussed, appropriate alternative dosing regimens remain to be identified. Methods: Various infusion regimens (1200-3600 mg/day; q6h, q8h, q12h and continuous) were simulated in 67 000 ICU patients. The probability of attaining pharmacodynamic targets ( T >MIC ≥85%, AUC/MIC ≥100, cumulative fraction of response for Staphylococcus aureus and Enterococcus spp...
May 24, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28540808/exposure-to-febrile-range-hyperthermia-potentiates-wnt-signalling-and-epithelial-mesenchymal-transition-gene-expression-in-lung-epithelium
#4
Ratnakar Potla, Mohan E Tulapurkar, Irina G Luzina, Sergei P Atamas, Ishwar S Singh, Jeffrey D Hasday
BACKGROUND: As environmental and body temperatures vary, lung epithelial cells experience temperatures significantly different from normal core temperature. Our previous studies in human lung epithelium showed that: (i) heat shock accelerates wound healing and activates profibrotic gene expression through heat shock factor-1 (HSF1); (ii) HSF1 is activated at febrile temperatures (38-41 °C) and (iii) hypothermia (32 °C) activates and hyperthermia (39.5 °C) reduces expression of a subset of miRNAs that target protein kinase-Cα (PKCα) and enhance proliferation...
April 26, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28540205/clinicopathological-spectrum-of-snake-bite-induced-acute-kidney-injury-from-india
#5
Sanjay Vikrant, Ajay Jaryal, Anupam Parashar
AIM: To study the clinico-pathological spectrum of snake bite-induced acute kidney injury (AKI). METHODS: A retrospective study of patients admitted at Indira Gandhi Medical College Hospital, Shimla with snake bite-induced AKI from July 2003 to June 2016. Medical records were evaluated for patient's information on demographic, clinical characteristics, complications and outcome. Outcomes of duration of hospital stay, requirement for intensive care unit support, treatment with dialysis, survival and mortality were analyzed...
May 6, 2017: World Journal of Nephrology
https://www.readbyqxmd.com/read/28538649/attenuation-of-hemorrhage-associated-lung-injury-by-adjuvant-treatment-with-c23-an-oligopeptide-derived-from-cold-inducible-rna-binding-protein-cirp
#6
Fangming Zhang, Weng-Lang Yang, Max Brenner, Ping Wang
BACKGROUND: Hemorrhagic shock (HS) is an important cause of mortality. HS is associated with an elevated incidence of acute lung injury (ALI) and acute respiratory distress syndrome (ARDS), significantly contributing to HS morbidity and mortality. Cold-inducible RNA-binding protein (CIRP) is released into the circulation during HS and can cause lung injury. C23 is a CIRP-derived oligopeptide that binds with high affinity to the CIRP receptor and inhibits CIRP-induced phagocyte secretion of TNF-α...
May 22, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28538439/nonlinear-imputation-of-pao2-fio2-from-spo2-fio2-among-mechanically-ventilated-patients-in-the-icu-a-prospective-observational-study
#7
Samuel M Brown, Abhijit Duggal, Peter C Hou, Mark Tidswell, Akram Khan, Matthew Exline, Pauline K Park, David A Schoenfeld, Ming Liu, Colin K Grissom, Marc Moss, Todd W Rice, Catherine L Hough, Emanuel Rivers, B Taylor Thompson, Roy G Brower
OBJECTIVES: In the contemporary ICU, mechanically ventilated patients may not have arterial blood gas measurements available at relevant timepoints. Severity criteria often depend on arterial blood gas results. Retrospective studies suggest that nonlinear imputation of PaO2/FIO2 from SpO2/FIO2 is accurate, but this has not been established prospectively among mechanically ventilated ICU patients. The objective was to validate the superiority of nonlinear imputation of PaO2/FIO2 among mechanically ventilated patients and understand what factors influence the accuracy of imputation...
May 22, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28535820/predicted-body-weight-relationships-for-protective-ventilation-unisex-proposals-from-pre-term-through-to-adult
#8
Dion C Martin, Glenn N Richards
BACKGROUND: The lung-protective ventilation bundle has been shown to reduce mortality in adult acute respiratory distress syndrome (ARDS). This concept has expanded to other areas of acute adult ventilation and is recommended for pediatric ventilation. A component of lung-protective ventilation relies on a prediction of lean body weight from height. The predicted body weight (PBW) relationship employed in the ARDS Network trial is considered valid only for adults, with a dedicated formula required for each sex...
May 23, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28535788/endexpiratory-lung-volume-measurement-correlates-with-the-ventilation-perfusion-mismatch-in-lung-injured-pigs
#9
Jens Kamuf, Andreas Garcia-Bardon, Bastian Duenges, Tanghua Liu, Antje Jahn-Eimermacher, Florian Heid, Matthias David, Erik K Hartmann
BACKGROUND: In acute respiratory respiratory distress syndrome (ARDS) a sustained mismatch of alveolar ventilation and perfusion (VA/Q) impairs the pulmonary gas exchange. Measurement of endexpiratory lung volume (EELV) by multiple breath-nitrogen washout/washin is a non-invasive, bedside technology to assess pulmonary function in mechanically ventilated patients. The present study examines the association between EELV changes and VA/Q distribution and the possibility to predict VA/Q normalization by means of EELV in a porcine model...
May 23, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28535744/leukocyte-filtration-of-the-cardiotomy-suction-does-it-affect-systemic-leukocyte-activation-or-pulmonary-function
#10
Richard Issitt, Jon Ball, Indie Bilkhoo, Adnan Mani, Bronagh Walsh, David Voegeli
BACKGROUND: Cardiopulmonary bypass is thought to propagate a global systemic response through contact with the non-physiological surfaces of the extracorporeal circuit, leading to the stimulation of leukocytes, their adherence to endothelial cells and the release of cytotoxic molecules. This, in turn, has been shown to accelerate pulmonary injury. This study tested a new leukocyte-filtration system (RemoweLL) against a conventional system with no leukocyte-depleting capacity to determine the efficacy of the filtration system and its effects on pulmonary function...
May 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28534038/analysis-of-mitochondrial-transfer-in-direct-co-cultures-of-human-monocyte-derived-macrophages-mdm-and-mesenchymal-stem-cells-msc
#11
Megan V Jackson, Anna D Krasnodembskaya
Mesenchymal stem/stromal cells (MSC) are adult stem cells which have been shown to improve survival, enhance bacterial clearance and alleviate inflammation in pre-clinical models of acute respiratory distress syndrome (ARDS) and sepsis. These diseases are characterised by uncontrolled inflammation often underpinned by bacterial infection. The mechanisms of MSC immunomodulatory effects are not fully understood yet. We sought to investigate MSC cell contact-dependent communication with alveolar macrophages (AM), professional phagocytes which play an important role in the lung inflammatory responses and anti-bacterial defence...
May 5, 2017: Bio-protocol
https://www.readbyqxmd.com/read/28532465/obesity-and-survival-in-critically-ill-patients-with-acute-respiratory-distress-syndrome-a-paradox-within-the-paradox
#12
EDITORIAL
Lorenzo Ball, Ary Serpa Neto, Paolo Pelosi
No abstract text is available yet for this article.
May 3, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28528140/maternal-and-neonatal-outcomes-of-respiratory-failure-during-pregnancy
#13
Chen-Yiu Hung, Han-Chung Hu, Li-Chung Chiu, Chih-Hao Chang, Li-Fu Li, Chung-Chi Huang, Chuan-Chi Kao, Po-Jen Cheng, Kuo-Chin Kao
BACKGROUND: Obstetric patients comprise a limited portion of intensive care unit patients, but they often present with unfamiliar conditions and exhibit the potential for catastrophic deterioration. This study evaluated the maternal and neonatal outcomes of respiratory failure during pregnancy. METHODS: Information on 71 patients at >25 weeks gestation in the ICU with respiratory failure was recorded between 2009 and 2013. The characteristics and outcomes of mothers and fetuses were determined through a retrospective chart review and evaluated using Student's t test, chi-square test, and Fisher's exact test...
May 17, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28526233/keratinocyte-growth-factor-for-the-treatment-of-the-acute-respiratory-distress-syndrome-kare-a-randomised-double-blind-placebo-controlled-phase-2-trial
#14
Daniel F McAuley, Lj Mark Cross, Umar Hamid, Evie Gardner, J Stuart Elborn, Kathy M Cullen, Ahilanandan Dushianthan, Michael Pw Grocott, Michael A Matthay, Cecilia M O'Kane
BACKGROUND: Data from in-vitro, animal, and human lung injury models suggest that keratinocyte growth factor (KGF) might be beneficial in acute respiratory distress syndrome (ARDS). The objective of this trial was to investigate the effect of KGF in patients with ARDS. METHODS: We did a double-blind, allocation concealed, randomised, placebo-controlled phase 2 trial in two intensive care units in the UK, involving patients fulfilling the American-European Consensus Conference Definition of ARDS...
May 16, 2017: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/28526232/keratinocyte-growth-factor-in-acute-respiratory-distress-syndrome
#15
István Vadász
No abstract text is available yet for this article.
May 16, 2017: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/28525416/is-there-a-preinterventional-mechanical-ventilation-time-limit-for-candidates-of-adult-respiratory-extracorporeal-membrane-oxygenation
#16
Meng-Yu Wu, Chung-Chi Huang, Tzu-I Wu, Yu-Sheng Chang, Chin-Liang Wang, Pyng-Jing Lin
Venovenous extracorporeal membrane oxygenation (VV-ECMO) is a useful life support in severe acute respiratory distress syndrome (ARDS). Although prolonged mechanical ventilation (MV) before institution of ECMO is known to be a poor prognostic factor for outcomes of VV-ECMO, a reasonable deadline for this period has not been defined yet. To discover the answer, we reviewed a 9 year institutional experience of adult respiratory ECMO in VV configuration and investigate the relationship between the MV time before ECMO and in-hospital mortality...
May 18, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28524028/-efficacy-of-20-albumin-infusion-on-coagulation-and-pulmonary-fibrosis-in-rabbits-with-ards
#17
Ling Yao, Bo Liu, Feng Shen
OBJECTIVE: To observe the efficacy of 20% albumin infusion on coagulation and pulmonary fibrosis in rabbits with acute respiratory distress syndrome (ARDS) induced by two-hit of intravenous infusion of oleid acid (OA) and lipopolysaccharide (LPS). METHODS: Forty healthy adult male rabbits were randomly divided into five groups, namely sham group, model group, albumin group (20% albumin), saline group (0.9% sodium chloride injection) and Ringer group (lactate Ringer solution), with 8 rabbits in each group...
May 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28523001/the-role-of-transient-receptor-potential-vanilloid-4-in-pulmonary-inflammatory-diseases
#18
REVIEW
Rachel G Scheraga, Brian D Southern, Lisa M Grove, Mitchell A Olman
Ion channels/pumps are essential regulators of organ homeostasis and disease. In the present review, we discuss the role of the mechanosensitive cation channel, transient receptor potential vanilloid 4 (TRPV4), in cytokine secretion and pulmonary inflammatory diseases such as asthma, cystic fibrosis (CF), and acute lung injury/acute respiratory distress syndrome (ARDS). TRPV4 has been shown to play a role in lung diseases associated with lung parenchymal stretch or stiffness. TRPV4 indirectly mediates hypotonicity-induced smooth muscle contraction and airway remodeling in asthma...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28522797/protective-effects-of-hydrogen-rich-saline-against-lipopolysaccharide-induced-alveolar-epithelial-to-mesenchymal-transition-and-pulmonary-fibrosis
#19
Wen-Wen Dong, Yun-Qian Zhang, Xiao-Yan Zhu, Yan-Fei Mao, Xue-Jun Sun, Yu-Jian Liu, Lai Jiang
BACKGROUND Fibrotic change is one of the important reasons for the poor prognosis of patients with acute respiratory distress syndrome (ARDS). The present study investigated the effects of hydrogen-rich saline, a selective hydroxyl radical scavenger, on lipopolysaccharide (LPS)-induced pulmonary fibrosis. MATERIAL AND METHODS Male ICR mice were divided randomly into 5 groups: Control, LPS-treated plus vehicle treatment, and LPS-treated plus hydrogen-rich saline (2.5, 5, or 10 ml/kg) treatment. Twenty-eight days later, fibrosis was assessed by determination of collagen deposition, hydroxyproline, and type I collagen levels...
May 19, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28522352/immune-plasma-for-the-treatment-of-severe-influenza-an-open-label-multicentre-phase-2-randomised-study
#20
John H Beigel, Pablo Tebas, Marie-Carmelle Elie-Turenne, Ednan Bajwa, Todd E Bell, Charles B Cairns, Shmuel Shoham, Jaime G Deville, Eric Feucht, Judith Feinberg, Thomas Luke, Kanakatte Raviprakash, Janine Danko, Dorothy O'Neil, Julia A Metcalf, Karen King, Timothy H Burgess, Evgenia Aga, H Clifford Lane, Michael D Hughes, Richard T Davey
BACKGROUND: Influenza causes substantial morbidity and mortality despite available treatments. Anecdotal reports suggest that plasma with high antibody titres to influenza might be of benefit in the treatment of severe influenza. METHODS: In this randomised, open-label, multicentre, phase 2 trial, 29 academic medical centres in the USA assessed the safety and efficacy of anti-influenza plasma with haemagglutination inhibition antibody titres of 1:80 or more to the infecting strain...
May 15, 2017: Lancet Respiratory Medicine
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