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Asthma-COPD overlap

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https://www.readbyqxmd.com/read/29433946/definition-and-diagnosis-of-asthma-copd-overlap-aco
#1
REVIEW
Satoru Yanagisawa, Masakazu Ichinose
It is now widely recognized that asthma and COPD can coexist as asthma-COPD overlap (ACO), but the preliminary attempts at providing universal guidelines for the diagnosis of ACO still need to be improved. We believe that a case can be made for devising guidelines for the diagnosis of this increasingly common disease that are specific to Japan. In this paper, we present our consensus-based description of ACO which we believe is realistic for use in our country. In addition, we cite the scientific evidence for our own "objective" features used to develop the criteria for COPD and asthma diagnosis...
February 9, 2018: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/29432960/use-of-ics-laba-combinations-or-lama-is-associated-with-a-lower-risk-of-acute-exacerbation-in-patients-with-coexistent-copd-and-asthma
#2
Vincent Yi-Fong Su, Kuang-Yao Yang, Yao-Hsu Yang, Ying-Huang Tsai, Diahn-Warng Perng, Wei-Juin Su, Kun-Ta Chou, Kang-Cheng Su, Yung-Feng Yen, Pau-Chung Chen
BACKGROUND: Based on current guidelines, more research is urgently needed to guide appropriate treatment for patients with asthma-chronic obstructive pulmonary disease overlap. OBJECTIVE: The objective of this study was to investigate medication effects on acute exacerbation in patients with coexistent COPD and asthma. METHODS: Using Taiwan's National Health Insurance Research Database, we conducted a nationwide population-based study to evaluate medication effects in patients with COPD and asthma...
February 9, 2018: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29420087/prevalence-and-features-of-asthma-chronic-obstructive-pulmonary-disease-overlap-in-northern-italy-general-population
#3
Massimo Guerriero, Marco Caminati, Giovanni Viegi, Gianenrico Senna, Carlo Pomari
OBJECTIVE: There is controversy about the diagnostic criteria, prevalence, symptoms, and spirometry characteristics of asthma-chronic obstructive pulmonary disease (COPD) overlap (ACO). Recent data indicate that the fixed method for diagnosing airway obstruction (AO) may overestimate ACO prevalence in the elderly, and a variable method may be more accurate. We aimed at estimating ACO prevalence in a general population sample and comparing patient and clinical features in subjects with ACO, COPD, and asthma...
February 8, 2018: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29368608/burden-of-asthma-and-copd-overlap-aco-in-taiwan-a-nationwide-population-based-study
#4
Sumitra Shantakumar, Raoh-Fang Pwu, Liesel D'Silva, Keele Wurst, Yao-Wen Kuo, Yen-Yun Yang, Yi-Chen Juan, K Arnold Chan
BACKGROUND: Patients with symptoms of both asthma and chronic obstructive pulmonary disease (COPD) may be classified with the term asthma-COPD overlap (ACO). ACO is of considerable interest as it is currently poorly characterised and has been associated with worse health outcomes and higher healthcare costs compared with COPD or asthma alone. Patients with ACO in Asia remain poorly described, and there is limited information regarding their resource utilisation compared with patients with asthma or COPD only...
January 25, 2018: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29368450/frequency-dependent-airway-hyperresponsiveness-in-a-mouse-model-of-emphysema-and-allergic-inflammation
#5
Kentaro Tamura, Koichiro Matsumoto, Satoru Fukuyama, Keiko Kan-O, Yumiko Ishii, Ken Tonai, Miyoko Tatsuta, Aimi Enokizu, Hiromasa Inoue, Yoichi Nakanishi
Asthma and chronic obstructive pulmonary disease (COPD), chronic airway inflammatory diseases characterized by airflow limitation, have different etiologies and pathophysiologies. Asthma-COPD Overlap (ACO) has recently been used for patients with mixed asthma and COPD. The pathophysiological mechanisms of ACO have not been clearly understood due to the lack of an appropriate murine model. To investigate its pathophysiology, we examined a murine model by allergen challenge in surfactant protein-D (SP-D)-deficient mice that spontaneously developed pulmonary emphysema...
January 2018: Physiological Reports
https://www.readbyqxmd.com/read/29355677/asthma-copd-and-overlap-in-a-national-cohort-aco-on-a-gradient
#6
Arnaud Bourdin, Carey M Suehs, Gregory Marin, Isabelle Vachier, Eric Matzner-Lober, Pascal Chanez, Nicolas Molinari
No abstract text is available yet for this article.
January 17, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29338973/asthma-copd-overlap-a-portuguese-survey
#7
E Padrão, D Araújo, A Todo Bom, C Robalo Cordeiro, J Correia de Sousa, J Cardoso, M Morais-Almeida, R Costa, F Pavão, R B Leite, A Marques
INTRODUCTION: The overlap between asthma and chronic obstructive pulmonary disease (COPD) (ACO) has been discussed for many years but clinical recommendations for this entity have been diverse. This study is intended to reach a consensus on diagnosis, treatment and patient orientation for ACO, within the Portuguese medical community. METHODS: This study was conducted by a multidisciplinary panel of experts from three distinct medical specialties (Pulmonology, Family Medicine and Immunoallergology)...
January 12, 2018: Revista Portuguesa de Pneumologia
https://www.readbyqxmd.com/read/29331768/the-cholinergic-anti-inflammatory-pathway-an-innovative-treatment-strategy-for-respiratory-diseases-and-their-comorbidities
#8
REVIEW
Mitsuhiro Yamada, Masakazu Ichinose
Over the past few decades, it has been clarified that the nervous system and immune system have overlapping distributions and their interactions are critical in the regulation of immunological and inflammatory responses. The cholinergic anti-inflammatory pathway, including the parasympathetic nerve systems and humoral factors orchestrate the immune responses to protect the body during infection and tissue injury. Recent investigations have attempted to clarify how the parasympathetic nerve systems attenuate the systemic inflammatory responses and identified the α7 nicotinic acetylcholine receptor (α7nAChR) as a crucial target for attenuating the release of inflammatory cytokines from inflammatory cells including macrophages and dendritic cells...
January 11, 2018: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/29326334/clinical-and-inflammatory-phenotyping-by-breathomics-in-chronic-airway-diseases-irrespective-of-the-diagnostic-label
#9
Rianne de Vries, Yennece W F Dagelet, Pien Spoor, Erik Snoey, Patrick M C Jak, Paul Brinkman, Erica Dijkers, Simon K Bootsma, Fred Elskamp, Frans H C de Jongh, Eric G Haarman, Johannes C C M In 't Veen, Anke-Hilse Maitland-van der Zee, Peter J Sterk
Asthma and chronic obstructive pulmonary disease (COPD) are complex and overlapping diseases that include inflammatory phenotypes. Novel anti-eosinophilic/anti-neutrophilic strategies demand rapid inflammatory phenotyping, which might be accessible from exhaled breath.Our objective was to capture clinical/inflammatory phenotypes in patients with chronic airway disease using an electronic nose (eNose) in a training and validation set.This was a multicentre cross-sectional study in which exhaled breath from asthma and COPD patients (n=435; training n=321 and validation n=114) was analysed using eNose technology...
January 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29312661/severe-asthma-and-asthma-copd-overlap-a-double-agent-or-identical-twins
#10
EDITORIAL
Yang Xia, Yuan Cao, Lexin Xia, Wen Li, Huahao Shen
No abstract text is available yet for this article.
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29273668/investigating-fractional-exhaled-nitric-oxide-feno-in-chronic-obstructive-pulmonary-disease-copd-and-asthma-copd-overlap-aco-a-scoping-review-protocol
#11
Seyed-Mohammad-Yousof Mostafavi-Pour-Manshadi, Nafiseh Naderi, Miriam Barrecheguren, Abolfazl Dehghan, Jean Bourbeau
INTRODUCTION: During the last decade, many articles have been published, including reviews on fractional exhaled nitric oxide (FeNO) use and utility in clinical practice and for monitoring and identifying eosinophilic airway inflammation, especially in asthma, and evaluating corticosteroid responsiveness. However, the exact role of FeNO in patients with chronic obstructive pulmonary disease (COPD) and its ability to distinguish patients with COPD and those having concomitant asthma, that is, asthma-COPD overlap (ACO) is still unclear and needs to be defined...
December 21, 2017: BMJ Open
https://www.readbyqxmd.com/read/29248621/asthma-is-a-risk-factor-for-respiratory-exacerbations-without-increased-rate-of-lung-function-decline-five-year-follow-up-in-adult-smokers-from-the-copdgene-study
#12
Lystra P Hayden, Megan E Hardin, Weiliang Qiu, David A Lynch, Matthew J Strand, Edwin J van Beek, James D Crapo, Edwin K Silverman, Craig P Hersh
BACKGROUND: Previous investigations in adult smokers from the COPDGene Study have shown that early-life respiratory disease is associated with reduced lung function, COPD, and airway thickening. Using five-year follow-up data we assessed disease progression in subjects with early-life respiratory disease. We hypothesized that there are alternative pathways to reaching reduced FEV1 and subjects with childhood pneumonia, childhood asthma, or asthma-COPD overlap (ACO), would have less lung function decline than subjects without these conditions...
December 14, 2017: Chest
https://www.readbyqxmd.com/read/29229474/accuracy-of-a-new-algorithm-to-identify-asthma-copd-overlap-aco-patients-in-a-cohort-of-patients-with-chronic-obstructive-airway-disease
#13
Luis Pérez de Llano, Borja G Cosío, Marc Miravitlles, Vicente Plaza
OBJECTIVES: We aimed to characterize the clinical, functional and inflammatory features of patients diagnosed diagnosed with ACO according to a new algorithm and to compare them with those of other chronic obstructive airway disease (COAD) categories (asthma and COPD). METHODS: ACO was diagnosed in a cohort of COAD patients in those patients with COPD who were either diagnosed with current asthma or showed significant blood eosinophilia (≥300cells/μl) and/or a very positive bronchodilator response (>400ml and >15% in FEV1)...
December 9, 2017: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/29217598/phenotypes-of-symptomatic-airways-disease-in-china-and-new-zealand
#14
James Fingleton, Kewu Huang, Mark Weatherall, Yanfei Guo, Stefan Ivanov, Piet Bruijnzeel, Hong Zhang, Wei Wang, Richard Beasley, Chen Wang
It is uncertain whether phenotypes of asthma and chronic obstructive pulmonary disease (COPD) vary between populations with different genetic and environmental characteristics. Here, our objective was to compare the phenotypes of airways disease in two separate populations.This was a cross-sectional observational study in adult populations from New Zealand and China. Participants aged 40-75 years who reported wheeze and breathlessness in the last 12 months were randomly selected from the general population and underwent detailed characterisation...
December 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29175370/atopy-is-associated-with-age-at-asthma-onset-in-elderly-patients
#15
Rosana Câmara Agondi, Mayra Coutinho Andrade, Priscila Takejima, Marcelo Vivolo Aun, Jorge Kalil, Pedro Giavina-Bianchi
BACKGROUND: Asthma in the elderly population (60 years of age and older) is frequently underdiagnosed, as well as atopy. Atopy, although more prevalent in younger patients, can be a major cause of asthma in the elderly. Chronic obstructive pulmonary disease (COPD) and cardiovascular disease are common differential diagnoses, especially in elderly smokers. OBJECTIVE: The objective of this study was to assess atopy and comorbidities in elderly patients with asthma...
November 23, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29158762/the-asthma-copd-overlap-syndrome-acos-epidemiology-and-historical-perspective
#16
Maarten van den Berge
No abstract text is available yet for this article.
2017: Tanaffos
https://www.readbyqxmd.com/read/29158759/the-asthma-copd-overlap-syndrome-acos-epidemiology-and-historical-perspective
#17
Maarten van den Berge
No abstract text is available yet for this article.
2017: Tanaffos
https://www.readbyqxmd.com/read/29138554/characteristics-of-copd-patients-according-to-gold-classification-and-clinical-phenotypes-in-the-russian-federation-the-support-trial
#18
Vladimir Arkhipov, Daria Arkhipova, Marc Miravitlles, Andrey Lazarev, Ekaterina Stukalina
Background: The high prevalence of COPD in the Russian Federation has been demonstrated in several epidemiological studies. However, there are still no data on the clinical characteristics of these patients according to Global Initiative for Chronic Obstructive Lung Disease (GOLD) groups and phenotypes, which could provide additional understanding of the burden of COPD, routine clinical practice, and ways to improve the treatment of patients with COPD in Russia. Patients and methods: SUPPORT was an observational multicenter study designed to obtain data about the distribution of patients with previously diagnosed COPD according to the severity of bronchial obstruction, symptom severity, risk of exacerbation, COPD phenotypes, and treatment of COPD...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29138407/spirometry-is-not-enough-to-diagnose-copd-in-epidemiological-studies-a-follow-up-study
#19
Elena Andreeva, Marina Pokhaznikova, Anatoly Lebedev, Irina Moiseeva, Olga Kuznetsova, Jean-Marie Degryse
A hallmark of the diagnosis of chronic obstructive pulmonary disease (COPD) is the measurement of post-bronchodilator (post-BD) airflow obstruction (AO) by spirometry, but spirometry is not enough for the provision of a clinical diagnosis. In the majority of previous epidemiological studies, COPD diagnosis has been based on spirometry and a few clinical characteristics. The aim of our study was to identify outcomes in patients newly diagnosed with airflow obstruction (AO) based on a diagnostic work-up conducted as part of a population-based cross-sectional study in North-Western Russia...
November 14, 2017: NPJ Primary Care Respiratory Medicine
https://www.readbyqxmd.com/read/29118577/associations-between-occupational-inhalation-risks-and-feno-levels-in-airway-obstruction-patients-results-from-the-national-health-and-nutrition-examination-survey-2007-2012
#20
Yi-Chih Huang, Mei-Chen Yang
Purpose: To investigate associations between occupational inhalation risks and fractional exhaled nitric oxide (FeNO) levels in patients with chronic obstructive pulmonary disease (COPD). Patients and methods: Data of 16,486 subjects who had undergone spirometry with pre-bronchodilator and post-bronchodilator lung function assessment were retrieved from the National Health and Nutrition Examination Survey, 2007-2012 database. After excluding 2,638 subjects with missing spirometry values, data of 13,336 subjects were included for analysis...
2017: International Journal of Chronic Obstructive Pulmonary Disease
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