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ards,acute respiratory distress syndrome

David Z Silberstein, Kalimuthu Karuppanan, Hnin Hnin Aung, Ching-Hsien Chen, Carroll E Cross, Karen A McDonald
Proteases and reactive oxygen species (ROS) have long been implicated in playing key roles in host tissue injury at sites of inflammatory processes dominated by macrophage activations and/or neutrophil infiltrations. Imbalances between proteases/antiproteases and ROS/antioxidants are recognized to contribute to amplification of inflammatory-based host tissue injury. This has been especially well-documented in such respiratory tract diseases as chronic obstructive pulmonary disease, cystic fibrosis, and acute respiratory distress syndrome...
March 15, 2018: Free Radical Biology & Medicine
Daisuke Kudo, Shigeki Kushimoto, Noriko Miyagawa, Tetsuya Sato, Masatsugu Hasegawa, Fumihito Ito, Sathoshi Yamanouchi, Hiroyuki Honda, Kohkichi Andoh, Hajime Furukawa, Yasuo Yamada, Yuta Tsujimoto, Manabu Okuyama
PURPOSE: Disseminated intravascular coagulations (DIC), acute respiratory distress syndrome (ARDS), and acute kidney injury (AKI) are major organ dysfunctions that occur in patients with sepsis. This study aimed to elucidate the impact of these organ dysfunctions on mortality in patients with severe sepsis. MATERIAL AND METHODS: A prospective observational study was performed in 10 ICUs to obtain data from patients with severe sepsis. Multivariate analyses to examine in-hospital mortality were performed...
March 7, 2018: Journal of Critical Care
Katerina Kaziani, Alice G Vassiliou, Anastasia Kotanidou, Chariclea Athanasiou, Ioanna Korovesi, Konstantinos Glynos, Stylianos E Orfanos
INTRODUCTION: Pulmonary capillary endothelium-bound (PCEB) angiotensin-converting enzyme (ACE) activity is a direct and quantifiable index of pulmonary endothelial function that decreases early in acute respiratory distress syndrome (ARDS) and correlates with its severity. Endothelial dysfunction is a major pathophysiology that underlies sepsis-related ARDS. Recombinant human activated protein C (rhAPC), now withdrawn from the market, has been used in the recent past as an endothelial-protective treatment in patients with septic organ dysfunction...
March 2018: Infectious Diseases and Therapy
Shujun Zhou, Gui Wang, Wenbin Zhang
The present study aimed to investigate the effects of the Toll-like receptor (TLR)4/myeloid differentiation primary response (MyD)88 signaling pathway on sepsis-associated acute respiratory distress syndrome (ARDS) in rats, and the involvement of macrophage activation and the inflammatory response. A total of 36 specific pathogen-free male Sprague-Dawley rats were selected to establish the rat model of sepsis-associated ARDS using cecal ligation and puncture (CLP). Rats were assigned into the Ab (anti-TLR4 monoclonal antibody)-CLP, CLP and Sham groups...
April 2018: Experimental and Therapeutic Medicine
Catia Cilloniz, Miquel Ferrer, Adamanthia Liapikou, Carolina Garcia-Vidal, Albert Gabarrus, Adrian Ceccato, Jorge Puig de La Bellacasa, Francesco Blasi, Antoni Torres
Question: To assess the incidence, characteristics, aetiology, risk factors and mortality of acute respiratory distress syndrome (ARDS) in ICU patients with community-acquired pneumonia (CAP) using the Berlin definition. Methods: We prospectively enrolled consecutive mechanically-ventilated ICU adults with CAP over 20 years, compared with mechanically-ventilated patients without ARDS. The main outcome was 30-day mortality. Results: Among 5,334 patients hospitalized with CAP, 930 (17%) were admitted to the ICU, and 432 required mechanical ventilation; 125 (29%) cases met the Berlin ARDS criteria...
March 15, 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
Su Hwan Lee, Ju Hye Shin, Joo Han Song, Ah Young Leem, Moo Suk Park, Young Sam Kim, Joon Chang, Kyung Soo Chung
Insulin-like growth factor-1 (IGF-1) levels are known to increase in the bronchoalveolar lavage fluid (BALF) of patients with acute respiratory distress syndrome. Herein, we investigated the role of IGF-1 in lipopolysaccharide (LPS)-induced lung injury. In LPS-treated cells, expressions of receptor-interacting protein 3 (RIP3) and phosphorylated mixed lineage kinase domain-like protein (MLKL) were decreased in IGF-1 receptor small interfering RNA (siRNA)-treated cells compared to control cells. The levels of pro-inflammatory cytokines including interleukin (IL)-1β, IL-6, IL-10, tumour necrosis factor-α, and macrophage inflammatory protein 2/C-X-C motif chemokine ligand 2 in the supernatant were significantly reduced in IGF-1 receptor siRNA-treated cells compared to control cells...
March 12, 2018: Biochemical and Biophysical Research Communications
Jeffrey Earl Gotts, Lauren F Chun, Jason Abbott, Xiaohui Fang, Naoki Takasaki, Stephen L Nishimura, Matthew L Springer, Suzaynn F Schick, Carolyn S Calfee, Michael A Matthay
Evidence is accumulating that exposure to cigarette smoke (CS) increases the risk of developing Acute Respiratory Distress Syndrome (ARDS). S. pneumoniae is the most common cause of bacterial pneumonia, which in turn is the leading cause of ARDS. Chronic smokers have increased rates of pneumococcal colonization and develop more severe pneumococcal pneumonia than nonsmokers, yet mechanistic connections between CS exposure, bacterial pneumonia, and ARDS pathogenesis remain relatively unexplored. We exposed mice to 3 weeks of moderate whole-body CS or air, followed by intranasal inoculation with an invasive serotype of S...
March 15, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
Israr Bin M Ibrahim, Ramana M Pidaparti, Kevin R Ward
Ventilation-induced lung injury is a common problem faced by patients with respiratory problems who require mechanical ventilation (MV). This injury may lead to a greater chance of developing or exacerbating the acute respiratory distress syndrome which further complicates the therapeutic use of MV. The chain of events begins with the MV initiating an immune response that leads to inflammation induced tissue material alteration (stiffening) and eventually the loss of lung resistance. It is clear from this sequence of events that the phenomenon of ventilation induced injury is multi-scale by nature and, hence, requires holistic analysis involving simulations and informatics...
2018: IEEE Journal of Translational Engineering in Health and Medicine
Haili Luo, Shaohong Wang, Tongmei Yuan, Jingtao Liu, Ling Yao, Xianguo Pan, Xuemei Long, Juncheng Wu, Feng Shen
BACKGROUND: More and more cases of human infections with avian influenza A H7N9 have been reported since it was first mentioned in 2013 in China, but concurrence of influenza A H7N9 with Mycoplasma pneumoniae, however, has never been described. Here, we reported the case of a woman co-infected by influenza A H7N9 and Mycoplasma pneumoniae, whose treatment process was a little bit longer and a little bit complicated as well. CASE PRESENTATION: Our patient was an 80-year-old Chinese woman who presented with fever, cough, chest tightness, and shortness of breath...
March 15, 2018: Journal of Medical Case Reports
Elizabeth Y Killien, Jerry J Zimmerman
No abstract text is available yet for this article.
April 2018: Critical Care Medicine
Martin Urner, Niall D Ferguson
No abstract text is available yet for this article.
April 2018: Critical Care Medicine
Abhijit Duggal, Sudhir Krishnan
No abstract text is available yet for this article.
March 14, 2018: American Journal of Respiratory and Critical Care Medicine
James B Leonard, Kashif M Munir, Hong K Kim
Metoclopramide (MCP) is a commonly used anti-emetic in the emergency department (ED). Its use is generally well tolerated; although infrequent adverse reactions such as extrapyramidal reactions or tardive dyskinesia are reported. However, many ED providers are not familiar with the potentially life-threatening hypertensive emergency that can be precipitated by MCP administration in patients with pheochromocytoma. A previously healthy 36-year-old woman presented to the ED with headache and nausea. She developed acute hypertensive emergency (acute agitation, worsening headache, chest pain and wide complex tachycardia) when her blood pressure (BP) increased to 223/102mmHg (initial BP, 134/86mmHg) after receiving intravenous MCP...
March 5, 2018: American Journal of Emergency Medicine
Priya Sharma, V Prem, Sakshee Jain
Background and Aims: One potential complication of acute respiratory distress syndrome (ARDS) is reduced dynamic compliance, saturation for peripheral oxygenation (SpO2 ) and increased sputum in patients that are mechanically ventilated. Airway clearance technique is the treatment given for patients on mechanically ventilator with ARDS. The purpose of the case series is to know the immediate effects of Acapella® on dynamic lung compliance (Cdyn) in subject with ARDS. Subjects and Methods: Patients who are on ventilator for more than 48hrs were included in the study...
February 2018: Indian Journal of Critical Care Medicine
Valliappan Muthu, Sahajal Dhooria, Ritesh Agarwal, Kuruswamy Thurai Prasad, Ashutosh N Aggarwal, Digambar Behera, Inderpaul Singh Sehgal
Background: There is a paucity of literature regarding outcome of critically ill patients with tuberculosis (TB) from India. Herein, we describe our experience of patients with active TB admitted to a Respiratory Intensive Care Unit (RICU) of a tertiary care hospital. Methods: This was a retrospective analysis of all the patients admitted with active TB. The baseline clinical, demographic, ICU parameters and mortality were recorded. A multivariate logistic regression analysis was performed to identify factors predicting mortality...
February 2018: Indian Journal of Critical Care Medicine
Benedetta Righino, Angelo Minucci, Davide Pirolli, Ettore Capoluongo, Giorgio Conti, Daniele De Luca, Maria Cristina De Rosa
Phospholipase A2-IIA catalyzes the hydrolysis of the sn-2 ester of glycerophospholipids. A rare c.428G > A (p.Arg143His) variant in PLA2G2A gene was found in two infants affected by acute respiratory distress syndrome (ARDS) by whole coding region and exon/intron boundaries sequencing. To obtain insights into the possible molecular effects of the rare R123H mutation in secretory PLA2-IIA (sPLA2-IIA), molecular modelling, molecular dynamics (MD) using principal component analysis (PCA) and continuum electrostatic calculations were conducted on the crystal structure of the wild type protein and on a generated model structure of the R123H mutant...
March 6, 2018: Journal of Molecular Graphics & Modelling
Jaime Retamal, Daniel Hurtado, Nicolás Villarroel, Alejandro Bruhn, Guillermo Bugedo, Marcelo Britto Passos Amato, Eduardo Leite Vieira Costa, Göran Hedenstierna, Anders Larsson, João Batista Borges
OBJECTIVE: It is known that ventilator-induced lung injury causes increased pulmonary inflammation. It has been suggested that one of the underlying mechanisms may be strain. The aim of this study was to investigate whether lung regional strain correlates with regional inflammation in a porcine model of acute respiratory distress syndrome. DESIGN: Retrospective analysis of CT images and positron emission tomography images using [F]fluoro-2-deoxy-D-glucose. SETTING: University animal research laboratory...
March 9, 2018: Critical Care Medicine
Weijing Li, Xiaolin Ai, Yuenan Ni, Zengpanpan Ye, Zongan Liang
PURPOSE: Systemic inflammation relates to the initiation and progression of acute respiratory distress syndrome (ARDS). As neutrophil-to-lymphocyte ratio (NLR) has been shown to be a prognostic inflammatory biomarker in various diseases, in this study, we sought to explore whether NLR is a prognostic factor in patients with ARDS. METHODS: A retrospective study was performed on patients diagnosed as ARDS admitted to the intensive care unit (ICU). We calculated the NLR by dividing the neutrophil count by the lymphocyte count and categorized patients into four groups based on quartile of NLR values...
March 9, 2018: Shock
Bo-Wei Tzeng, Po-Yu Liu, Sung-Yuan Hu
No abstract text is available yet for this article.
March 2, 2018: British Journal of Hospital Medicine
Hideo Saka, Masahide Oki, Chiyoe Kitagawa, Yoshihito Kogure, Yuki Kojima, Akiko M Saito, Atsuko Ishida, Teruomi Miyazawa, Koji Takeda, Kazuhiko Nakagawa, Shinji Sasada, Shunichi Negoro
Background: Malignant pleural effusion is a commonly seen complication of malignancies such as lung and breast cancers. In Western countries, talc is frequently used as a standard therapeutic agent (pleurodesis agent) with the aim of alleviating symptoms including dyspnea and chest pain. Talc is not recognized as a pleurodesis agent in Japan. The aim of this study was to verify the efficacy and safety of sterilized talc (NPC-05) for the introduction of talc in Japan. Methods: The study was a single-arm, open-label, investigator-initiated trial conducted jointly at six institutions...
March 8, 2018: Japanese Journal of Clinical Oncology
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