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acute exacerbations of asthma

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https://www.readbyqxmd.com/read/28635549/a-missed-primary-care-appointment-correlates-with-a-subsequent-emergency-department-visit-among-children-with-asthma
#1
Colleen Marie McGovern, Margaret Redmond, Kimberly Arcoleo, David R Stukus
OBJECTIVE: Since the Affordable Care Act's implementation, emergency department (ED) visits have increased. Poor asthma control increases the risk of acute exacerbations and preventable ED visits. The Centers for Medicare and Medicaid Services support the reduction of preventable ED visits to reduce healthcare spending. Implementation of interventions to avoid preventable ED visits has become a priority for many healthcare systems yet little data exist examining children's missed asthma management primary care (PC) appointments and subsequent ED visits...
March 2, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28633665/optimizing-bronchodilation-in-the-prevention-of-copd-exacerbations
#2
REVIEW
Marc Miravitlles, Antonio Anzueto, José R Jardim
The natural disease course of chronic obstructive pulmonary disease (COPD) is often punctuated by exacerbations: acute events of symptom worsening associated with significant morbidity and healthcare resource utilization; reduced quality of life; and increased risk of hospitalization and death. The Global Initiative for Chronic Obstructive Lung Disease (GOLD) recommend that patients at risk of exacerbations (GOLD Groups C and D) receive a long-acting muscarinic antagonist (LAMA) or a long-acting β2-agonist (LABA)/LAMA combination, respectively, as preferred initial treatments...
June 20, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28620429/novel-approaches-to-ultrasonography-of-the-lung-and-pleural-space-where-are-we-now
#3
REVIEW
Daniel Lichtenstein
This review article is an update of what should be known for practicing basic lung ultrasound in the critically ill (LUCI) and is also of interest for less critical disciplines (e.g. pulmonology). It pinpoints on the necessity of a professional machine (not necessarily a sophisticated one) and probe. It lists the 10 main signs of LUCI and some of the main protocols made possible using LUCI: the BLUE protocol for a respiratory failure, the FALLS protocol for a circulatory failure, the SESAME protocol for a cardiac arrest and the investigation of a ventilated acute respiratory distress syndrome patient, etc...
June 2017: Breathe
https://www.readbyqxmd.com/read/28590992/montelukast-treatment-of-acute-asthma-exacerbations-in-children-aged-2-to-5-years-a-randomized-double-blind-placebo-controlled-trial
#4
Xiuping Wang, Jinfang Zhou, Xin Zhao, Xiongxiong Yi
BACKGROUND: Although montelukast has an established role in the management of chronic asthma in children, its efficacy in acute asthma exacerbations (AAEs) in children aged 2 to 5 years is not fully known. This study aimed to evaluate the effectiveness and safety of montelukast for treating AAE in children aged 2 to 5 years in China. METHODS: In total, 120 Chinese children with AAE, aged 2 to 5 years, were randomly divided into 2 groups, each with 60 patients. All patients received either montelukast or placebo along with standard therapy for acute asthma between January 2011 and December 2015...
June 6, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28590311/aspirin-challenge-and-desensitization-how-when-and-why
#5
Gabriele Cortellini, Cristiano Caruso, Antonino Romano
PURPOSE OF REVIEW: To investigate the current approach to aspirin challenge (drug provocation) and/or desensitization in patients with histories of hypersensitivity reactions to it, particularly in those with cardiovascular diseases. RECENT FINDINGS: The literature indicates that patients with coronary artery disease (CAD), including those with an acute coronary syndrome, may safely undergo low-dose aspirin challenge and/or desensitization. Recently, flowcharts regarding challenge/desensitization procedures with aspirin in patients with CAD and histories of aspirin hypersensitivity reactions have become available...
June 5, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28560041/severe-acute-asthma-caused-by-chlamydophila-pneumoniae-infection
#6
Yoshinari Endo, Toshihiro Shirai, Mika Saigusa, Eisuke Mochizuki
Asthma exacerbation is associated with respiratory infections, including those by viruses and atypical bacteria. We herein report a case of severe acute asthma in an adult caused by Chlamydophila pneumoniae (C. pneumoniae) infection. A 39-year-old woman without a history of asthma reported to the emergency department with progressive worsening of cough, shortness of breath, and wheezing with low oxygen saturation. A computed tomography (CT) scan revealed patchy ground-glass opacity and bronchial wall thickening...
July 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28558829/which-bronchodilator-reversibility-criteria-can-predict-severe-acute-exacerbation-in-chronic-obstructive-pulmonary-disease-patients
#7
Junghyun Kim, Woo Jin Kim, Chang-Hoon Lee, Sang Haak Lee, Myung-Goo Lee, Kyeong-Cheol Shin, Kwang Ha Yoo, Ji-Hyun Lee, Seong Yong Lim, Ju Ock Na, Hun-Gyu Hwang, Yoonki Hong, Myoung Nam Lim, Chul-Gyu Yoo, Ki Suck Jung, Sang-Do Lee
BACKGROUND: It is unclear whether various bronchodilator reversibility (BDR) criteria affect the prognosis of chronic obstructive pulmonary disease (COPD). The aim of this study is to evaluate the impact of positive BDR defined according to various BDR criteria on the risk of severe acute exacerbation (AE) in COPD patients. METHODS: Patients from four prospective COPD cohorts in South Korea who underwent follow-up for at least 1 year were enrolled in this study...
May 30, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28551030/excessive-gestational-weight-gain-in-first-trimester-is-a-risk-factor-for-exacerbation-of-asthma-during-pregnancy-a%C3%A2-prospective-study-of-1283-pregnancies
#8
Zarqa Ali, Lisbeth Nilas, Charlotte Suppli Ulrik
BACKGROUND: Acute exacerbation during pregnancy is the most important risk factor for an unfavorable outcome of pregnancy in women with asthma. OBJECTIVE: We sought to identify pregnancy-related risk factors for acute exacerbations of asthma during pregnancy. METHODS: Since 2007, all pregnant women referred to give birth at Hvidovre Hospital, Denmark, have been offered participation in the prospective Management of Asthma during Pregnancy (MAP) program...
May 24, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28535631/-a-multi-center-study-for-the-association-between-the-perception-and-control-of-disease-among-asthmatic-patients-in-chinese-urban-areas
#9
Y Nong, J T Lin, W Q Wang, X Zhou, C Z Wang, M Huang, S X Cai, P Chen, Q C Lin, J Y Zhou, Y H Gu, Y D Yuan, D J Sun, X H Yang, L Yang, J M Huo, Z C Chen, P Jiang, J Zhang, X W Ye, H G Liu, H P Tang, R Y Liu, C T Liu, W Zhang, C P Hu, Y Q Chen, X J Liu, L M Dai, W Zhou, Y J Huang, J Y Xu
Objective: To investigate the current perception of disease among asthmatic patients in Chinese urban areas, and to address its association with asthma control. Methods: This was a nationwide, multi-center, cross-sectional study covering 30 third-level, grade A hospitals in 30 provinces, municipalities and autonomous regions (not including Tibet) across Chinese mainland. The survey was carried out from October 2015 to May 2016. Asthmatic outpatients were selected to receive face-to-face questionnaire survey on asthma control including Asthma Control Test (ACT) score, classification of asthma control level[according to the Global Initiative for Asthma (GINA) 2015 classification system, as assessed by the physician completing the survey], perception of asthma (including question 1: nature of asthma as a disease; question 2: selection of first-line therapeutic agents to be regularly used daily for asthma; question 3: appropriate timing of the use of short-acting aerosols of β(2) receptor agonists; and question 4: therapeutic goals for asthma)...
May 16, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28526598/breathe-easy-5-steps-to-better-breathing-with-your-metered-dose-inhaler-mdi
#10
Evan H Allie, Ellen B O'Kelley, Katie H Fischesser, Lawrence B Stack, Donald H Arnold
Proper use of the metered-dose inhaler (MDI) is essential for medications to prevent and treat acute asthma exacerbations. This training video teaches children and clinicians correct technique for MDI use.
May 13, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28526210/early-control-treatment-with-montelukast-in-preschool-children-with-asthma-a-randomized-controlled-trial
#11
Mizuho Nagao, Masanori Ikeda, Norimasa Fukuda, Chizu Habukawa, Tetsuro Kitamura, Toshio Katsunuma, Takao Fujisawa
BACKGROUND: While Japanese guideline recommends initial control treatment for preschool children with asthma symptoms more than once a month, Western guidelines do not. To determine whether control treatment with montelukast was more effective than as-needed β2-agonists in this population, we conducted a randomized controlled trial. METHODS: Eligible patients were children aged 1-5 years who had asthma symptoms more than once a month but less than once a week. Patients were randomly assigned in a 1:1 ratio to receive montelukast 4 mg daily for 48 weeks or as-needed β2-agonists...
May 16, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28515363/lung-cd103-dendritic-cells-restrain-allergic-airway-inflammation-through-il-12-production
#12
Laura Conejero, Sofía C Khouili, Sarai Martínez-Cano, Helena M Izquierdo, Paola Brandi, David Sancho
DCs are necessary and sufficient for induction of allergic airway inflammation. CD11b+ DCs direct the underlying Th2 immunity, but debate surrounds the function of CD103+ DCs in lung immunity and asthma after an allergic challenge. We challenged Batf3-/- mice, which lacked lung CD103+ DCs, with the relevant allergen house dust mite (HDM) as a model to ascertain their role in asthma. We show that acute and chronic HDM exposure leads to defective Th1 immunity in Batf3-deficient mice. In addition, chronic HDM challenge in Batf3-/- mice results in increased Th2 and Th17 immune responses and exacerbated airway inflammation...
May 18, 2017: JCI Insight
https://www.readbyqxmd.com/read/28506728/-the-effects-of-inhaled-steroids-withdrawal-in-copd
#13
G Jebrak, I Honore, P Serrier, J Dumoulin, P Terrioux, F Soyez, C Maurer, G Mangiapan, M Febvre, L-J Couderc, J-M Braun, T Chinet
The key pathophysiological feature of chronic obstructive pulmonary disease (COPD) is an abnormal inflammatory bronchial reaction after inhalation of toxic substances. The priority is the avoidance of such toxic inhalations, but the use of anti-inflammatory drugs also seems appropriate, especially corticosteroids that are the sole anti-inflammatory drug available for this purpose in France. The risks associated with the prolonged use of these parenteral drugs are well known. Inhalation is therefore the optimal route, but inhaled drugs may also lead to adverse consequences...
May 12, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28502841/use-of-airway-epithelial-cell-culture-to-unravel-the-pathogenesis-and-study-treatment-in-obstructive-airway-diseases
#14
REVIEW
Tinne C J Mertens, Harry Karmouty-Quintana, Christian Taube, Pieter S Hiemstra
Asthma and chronic obstructive pulmonary disease (COPD) are considered as two distinct obstructive diseases. Both chronic diseases share a component of airway epithelial dysfunction. The airway epithelium is localized to deal with inhaled substances, and functions as a barrier preventing penetration of such substances into the body. In addition, the epithelium is involved in the regulation of both innate and adaptive immune responses following inhalation of particles, allergens and pathogens. Through triggering and inducing immune responses, airway epithelial cells contribute to the pathogenesis of both asthma and COPD...
May 11, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28502415/effects-of-acute-psychological-stress-induced-in-laboratory-on-physiological-responses-in-asthma-populations-a-systematic-review
#15
REVIEW
Annik Plourde, Kim L Lavoie, Candace Raddatz, Simon L Bacon
BACKGROUND: Psychological stress has long been suspected to have a deleterious effect on asthma, with acute psychological stress being associated with physiological responses in asthma patients. OBJECTIVES: The purpose of this systematic review was to provide a narrative synthesis of the impact of acute laboratory psychological stress on physiological responses among asthma patients. METHODS: An extensive search was conducted by two independent authors using Pubmed, PsycINFO, PsyArticles and the Cochrane Library electronic databases (up to September 2016)...
June 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28500687/epidemiological-analysis-and-follow-up-of-human-rhinovirus-infection-in-children-with-asthma-exacerbation
#16
Shou-Yan Zheng, Li-Li Wang, Luo Ren, Jian Luo, Wei Liao, En-Mei Liu
To determine the prevalence of human rhinovirus (HRV) infection in children with acute asthma exacerbations, investigation of HRV viral load and severity of asthma exacerbations is also required. Nasopharyngeal aspirates and swabs were collected and assessed for respiratory viruses. HRV-positive samples were sequenced to identify types and determine viral load. Outpatients with asthma exacerbations underwent follow-up evaluations, their swabs were collected and clinical outcomes were recorded at their next clinic visit 4 weeks later...
May 13, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28497854/allergic-sinusitis-and-severe-asthma-caused-by-occupational-exposure-to-locust-bean-gum-case-report
#17
Brie Hawley, Kristin J Cummings, Mohammed Mohammed, Anne E Dimmock, Rebecca Bascom
We present a case that highlights the difficulties with diagnosis and the dangers of occupational allergic sinusitis and asthma left unrecognized. We describe the case history of a man who experienced work-related symptoms 1 year after beginning work as a cheesemaker at a creamery, and whose respiratory symptoms progressively worsened over 16 years before an occupational cause of his asthma was identified. His initial discrete episodes of sinusitis and acute bronchitis evolved into persistent asthma of increasing severity with exacerbations requiring repeated emergency room treatment...
July 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28487836/allergic-conjunctivitis-in-asia
#18
REVIEW
Bernard Yu-Hor Thong
Allergic conjunctivitis (AC), which may be acute or chronic, is associated with rhinitis in 30%-70% of affected individuals, hence the term allergic rhinoconjunctivitis (AR/C). Seasonal and perennial AC is generally milder than the more chronic and persistent atopic and vernal keratoconjunctivitis. Natural allergens like house dust mites (HDM), temperate and subtropical grass and tree pollen are important triggers that drive allergic inflammation in AC in the Asia-Pacific region. Climate change, environmental tobacco smoke, pollutants derived from fuel combustion, Asian dust storms originating from central/north Asia and phthalates may also exacerbate AR/C...
April 2017: Asia Pacific Allergy
https://www.readbyqxmd.com/read/28474108/the-immunotherapeutic-role-of-bacterial-lysates-in-a-mouse-model-of-asthma
#19
Chentao Liu, Rong Huang, Rujie Yao, Aimei Yang
INTRODUCTION: Asthma is the most common chronic lower respiratory disease in childhood throughout the world. Recurrent respiratory tract infections in young children, especially viral infections, are the major cause of acute asthmatic exacerbations and contribute to development of asthma. Bacterial extracts have been used to improve the immune defenses of the respiratory tract. However, seldom studies have examined the effect of bacterial lysates on childhood asthma. In this study, we examined whether bacterial lysates (OM-85) will improve symptoms of asthmatic mice via modulation of the immune response...
May 4, 2017: Lung
https://www.readbyqxmd.com/read/28461300/addressing-unmet-needs-in-understanding-asthma-mechanisms-from-the-european-asthma-research-and-innovation-partnership-earip-work-package-wp-2-collaborators
#20
REVIEW
Michael R Edwards, Sejal Saglani, Jurgen Schwarze, Chrysanthi Skevaki, Jaclyn A Smith, Ben Ainsworth, Mark Almond, Evangelos Andreakos, Maria G Belvisi, Kian Fan Chung, William Cookson, Paul Cullinan, Catherine Hawrylowicz, Marek Lommatzsch, David Jackson, Rene Lutter, Benjamin Marsland, Miriam Moffatt, Mike Thomas, J Christian Virchow, Georgina Xanthou, Jessica Edwards, Samantha Walker, Sebastian L Johnston
Asthma is a heterogeneous, complex disease with clinical phenotypes that incorporate persistent symptoms and acute exacerbations. It affects many millions of Europeans throughout their education and working lives and puts a heavy cost on European productivity. There is a wide spectrum of disease severity and control. Therapeutic advances have been slow despite greater understanding of basic mechanisms and the lack of satisfactory preventative and disease modifying management for asthma constitutes a significant unmet clinical need...
May 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
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