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Asthma-COPD overlap

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https://www.readbyqxmd.com/read/28209039/-the-value-of-fractionated-exhaled-nitric-oxide-in-the-diagnosis-of-asthma-chronic-obstructive-pulmonary-disease-overlap-syndrome
#1
D D Deng, A Y Zhou, Q C Shuang, P Chen
Objective: To explore the diagnostic value of fractionated exhaled nitric oxide (FeNO) measurement in patients with asthma-chronic obstructive pulmonary disease(COPD) overlap syndrome (ACOS). Methods: Eighty-one patients with ACOS, 76 patients with asthma, 82 patients with COPD and 39 healthy non-smoking subjects were recruited in the study. Naku Lun breath analyzer was used to measure the level of FeNO in the 4 groups. Pulmonary function was also measured. The ROC curve was used to differentiate ACOS from patients with COPD...
February 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28166215/genetic-loci-associated-with-chronic-obstructive-pulmonary-disease-overlap-with-loci-for-lung-function-and-pulmonary-fibrosis
#2
Brian D Hobbs, Kim de Jong, Maxime Lamontagne, Yohan Bossé, Nick Shrine, María Soler Artigas, Louise V Wain, Ian P Hall, Victoria E Jackson, Annah B Wyss, Stephanie J London, Kari E North, Nora Franceschini, David P Strachan, Terri H Beaty, John E Hokanson, James D Crapo, Peter J Castaldi, Robert P Chase, Traci M Bartz, Susan R Heckbert, Bruce M Psaty, Sina A Gharib, Pieter Zanen, Jan W Lammers, Matthijs Oudkerk, H J Groen, Nicholas Locantore, Ruth Tal-Singer, Stephen I Rennard, Jørgen Vestbo, Wim Timens, Peter D Paré, Jeanne C Latourelle, Josée Dupuis, George T O'Connor, Jemma B Wilk, Woo Jin Kim, Mi Kyeong Lee, Yeon-Mok Oh, Judith M Vonk, Harry J de Koning, Shuguang Leng, Steven A Belinsky, Yohannes Tesfaigzi, Ani Manichaikul, Xin-Qun Wang, Stephen S Rich, R Graham Barr, David Sparrow, Augusto A Litonjua, Per Bakke, Amund Gulsvik, Lies Lahousse, Guy G Brusselle, Bruno H Stricker, André G Uitterlinden, Elizabeth J Ampleford, Eugene R Bleecker, Prescott G Woodruff, Deborah A Meyers, Dandi Qiao, David A Lomas, Jae-Joon Yim, Deog Kyeom Kim, Iwona Hawrylkiewicz, Pawel Sliwinski, Megan Hardin, Tasha E Fingerlin, David A Schwartz, Dirkje S Postma, William MacNee, Martin D Tobin, Edwin K Silverman, H Marike Boezen, Michael H Cho
Chronic obstructive pulmonary disease (COPD) is a leading cause of mortality worldwide. We performed a genetic association study in 15,256 cases and 47,936 controls, with replication of select top results (P < 5 × 10(-6)) in 9,498 cases and 9,748 controls. In the combined meta-analysis, we identified 22 loci associated at genome-wide significance, including 13 new associations with COPD. Nine of these 13 loci have been associated with lung function in general population samples, while 4 (EEFSEC, DSP, MTCL1, and SFTPD) are new...
February 6, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28149573/current-situation-of-asthma-copd-overlap-syndrome-acos-in-chinese-patients-older-than-40-years-with-airflow-limitation-rationale-and-design-for-a-multicenter-cross-sectional-trial-study-protocol
#3
Jian Kang, Wanzhen Yao, Baiqiang Cai, Ping Chen, Xia Ling, Hongyan Shang
BACKGROUND: Asthma and chronic obstructive pulmonary disease (COPD) are the frequently occurring chronic airway diseases, and the overlapping syndrome observed in the majority of patients has been recently defined as asthma-COPD overlap syndrome (ACOS) by the Global Initiative for Chronic Obstructive Lung (GOLD, 2014) and Global initiative for Asthma (GINA, 2015). The proportion, features, and clinical practice of ACOS still remain elusive in China. We are conducting this multicenter, cross-sectional, observational study (NCT02600221) to investigate the distributions of chronic obstructive diseases in patients >40 years of age with chronic airflow limitation in China along with determination of the main clinical practice and features of these diseases...
December 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28146643/childhood-lung-function-predicts-adult-copd-and-asthma-copd-overlap-syndrome-acos
#4
Dinh S Bui, John A Burgess, Adrian J Lowe, Jennifer L Perret, Caroline J Lodge, Minh Bui, Stephen Morrison, Bruce R Thompson, Paul S Thomas, Graham G Giles, Judith Garcia-Aymerich, Debbie Jarvis, Michael J Abramson, E Haydn Walters, Melanie C Matheson, Shyamali C Dharmage
RATIONALE: There are limited data on early life risk factors for COPD phenotypes. OBJECTIVE: To investigate the role of childhood lung function in adult spirometrically defined COPD phenotypes. METHOD: Pre-bronchodilator (BD) spirometry was performed for a cohort of 7-year old Tasmanian children. A sub-sample underwent pre-and post-BD spirometry at 45 years. For this analysis, COPD was spirometrically defined as a post-BD FEV1/FVC<lower limit of normal (LLN)...
February 1, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28145647/relationship-between-fractional-exhaled-nitric-oxide-level-and-efficacy-of-inhaled-corticosteroid-in-asthma-copd-overlap-syndrome-patients-with-different-disease-severity
#5
Jia Xi Feng, Yun Lin, Jian Lin, Su Su He, Mei Fang Chen, Xiao Mai Wu, You Zu Xu
This study explored the relationship between the fractional exhaled nitric oxide (FeNO) level and the efficacy of inhaled corticosteroid (ICS) in asthma-chronic obstructive pulmonary disease (COPD) overlap syndrome (ACOS) patients with different disease severity. A total of 127 ACOS patients with ACOS (case group) and 131 healthy people (control group) were enrolled in this study. Based on the severity of COPD, the ACOS patients were divided into: mild ACOS; moderate ACOS; severe ACOS; and extremely severe ACOS groups...
March 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28119742/asthma-copd-overlap-syndrome-what-we-know-and-what-we-don-t
#6
REVIEW
Don D Sin
Approximately one in four patients with chronic obstructive pulmonary disease (COPD) have asthmatic features consisting of wheezing, airway hyper-responsiveness or atopy. The Global initiative for Asthma/Globalinitiative for chronic Obstructive Lung Disease committee recently labelled these patients as having asthma-COPD overlap syndrome or ACOS. ACOS also encompasses patients with asthma, ≥40 years of age, who have been cigarette smokers (more than 5-10 pack years) or have had significant biomass exposure, and demonstrate persistent airflow limitation defined as a post-bronchodilator forced expiratory volume in 1 second (FEV1)/forced vital capacity of <70%...
January 2017: Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28118239/childhood-asthma-is-a-risk-factor-for-the-development-of-chronic-obstructive-pulmonary-disease
#7
Michael J McGeachie
PURPOSE OF REVIEW: This review will catalog the many recent longitudinal studies that have investigated the relationship between asthma and lung function, or the persistence and trajectories of lung function deficits. RECENT FINDINGS: Recent work has reported on 50-year follow-ups of some prominent population cohorts. A history of asthma confers a 10-30-fold risk of chronic obstructive pulmonary disease. Individuals reaching a reduced maximum growth of forced expiratory volume in 1 s in early adulthood are at risk for early or more severe chronic obstructive pulmonary disease (COPD)...
January 21, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28110335/personalised-medicine-for-asthma-and-chronic-obstructive-pulmonary-disease
#8
Liam G Heaney, Lorcan P A McGarvey
Asthma and chronic obstructive pulmonary disease (COPD) are prevalent conditions, and despite recent advances and multiple available therapies and interventions, there remains a significant unmet clinical need. In recent years, it has become clear that there is both significant heterogeneity within each of these conditions and additionally significant overlap in many of the clinical and inflammatory features. In parallel, useful clinical and immunological biomarkers which inform about prognosis and response to therapy have emerged in both asthma and COPD...
2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28103123/disease-burden-of-patients-with-asthma-copd-overlap-in-a-us-claims-database-impact-of-icd-9-coding-based-definitions
#9
Keele E Wurst, Samantha St Laurent, David Hinds, Kourtney J Davis
The inclusion of an asthma/chronic obstructive pulmonary disease (COPD) overlap syndrome (ACOS) population in the 2015 Global Initiative for Chronic Obstructive Lung Disease strategic documents has raised questions about the profile of these patients in clinical practice, as they are mostly excluded from asthma and COPD clinical trials. We estimated the disease burden, co-morbidities, and respiratory treatments of patients with asthma/COPD overlap, utilizing the Truven MarketScan commercial and Medicare databases...
January 19, 2017: COPD
https://www.readbyqxmd.com/read/28100824/asthma-copd-overlap-syndrome-showed-more-exacerbations-however-lower-mortality-than-copd
#10
J-W Bai, B Mao, W-L Yang, S Liang, H-W Lu, J-F Xu
BACKGROUND: Asthma-chronic obstructive pulmonary disease (COPD) overlap syndrome (ACOS) is a new determinate syndrome whose exact characteristics remain unclear. AIM: The objective of this study is to find more difference between ACOS and COPD. DESIGN: A retrospective study of ACOS and COPD in Chinese. METHODS: Data from 65 patients with ACOS and 65 patients with COPD were retrospectively collected and analyzed. The basis of this study was to compare the two groups while ruling out differences in age, sex and smoking history...
January 18, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28089081/asthma-chronic-obstructive-pulmonary-disease-overlap-syndrome-literature-review-and-contributions-towards-a-portuguese-consensus
#11
D Araújo, E Padrão, M Morais-Almeida, J Cardoso, F Pavão, R B Leite, A C Caldas, A Marques
INTRODUCTION: Phenotypic overlap between the two main chronic airway pulmonary diseases, asthma and chronic obstructive pulmonary disease (COPD), has been the subject of debate for decades, and recently the nomenclature of asthma-COPD overlap syndrome (ACOS) was adopted for this condition. The definition of this entity in the literature is, however, very heterogeneous, it is therefore important to define how it applies to Portugal. METHODS: A literature review of ACOS was made in a first phase resulting in the drawing up of a document that was later submitted for discussion among a panel of chronic lung diseases experts, resulting in reflexions about diagnosis, treatment and clinical guidance for ACOS patients...
January 6, 2017: Revista Portuguesa de Pneumologia
https://www.readbyqxmd.com/read/28055002/identifying-possible-asthma-copd-overlap-syndrome-in-patients-with-a-new-diagnosis-of-copd-in-primary-care
#12
Camilla Boslev Baarnes, Peter Kjeldgaard, Mia Nielsen, Marc Miravitlles, Charlotte Suppli Ulrik
The asthma-chronic obstructive pulmonary disease (COPD) overlap syndrome (ACOS) remains poorly characterised. Our aim was to describe an algorithm for identifying possible ACOS in adults with newly diagnosed COPD in primary care. General practitioners (n=241) consecutively recruited subjects ⩾35 years, with tobacco exposure, at least one respiratory symptom and no previous diagnosis of obstructive lung disease. Possible ACOS was defined as chronic airflow obstruction, i.e., post-bronchodilator (BD) forced expiratory volume 1/forced vital capacity (FEV1/FVC) ratio<0...
January 5, 2017: NPJ Primary Care Respiratory Medicine
https://www.readbyqxmd.com/read/28005431/lung-development-and-aging
#13
Andrew Bush
The onset of chronic obstructive pulmonary disease (COPD) can arise either from failure to attain the normal spirometric plateau or from an accelerated decline in lung function. Despite reports from numerous big cohorts, no single adult life factor, including smoking, accounts for this accelerated decline. By contrast, five childhood risk factors (maternal and paternal asthma, maternal smoking, childhood asthma and respiratory infections) are strongly associated with an accelerated rate of lung function decline and COPD...
December 2016: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/27994446/exacerbations-and-health-care-resource-utilization-in-patients-with-airflow-limitation-diseases-attending-a-primary-care-setting-the-puma-study
#14
Maria Montes de Oca, Carlos Aguirre, Maria Victorina Lopez Varela, Maria E Laucho-Contreras, Alejandro Casas, Filip Surmont
BACKGROUND: COPD, asthma, and asthma-COPD overlap increase health care resource consumption, predominantly because of hospitalization for exacerbations and also increased visits to general practitioners (GPs) or specialists. Little information is available regarding this in the primary care setting. OBJECTIVES: To describe the prevalence and number of GP and specialist visits for any cause or due to exacerbations in patients with COPD, asthma, and asthma-COPD overlap...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27977310/therapeutic-approaches-to-asthma-chronic-obstructive-pulmonary-disease-overlap
#15
Edmund M T Lau, Nicole A Roche, Helen K Reddel
Patients with features of both asthma and chronic obstructive pulmonary disease (COPD) ('asthma-COPD overlap') experience greater symptom burden and higher risk of adverse health outcomes than those with asthma or COPD alone. However, virtually no pharmacotherapy studies have been performed in this overlap population, leading to confusion amongst clinicians regarding therapeutic approaches. Areas covered: A pragmatic approach is suggested to identify patients with typical asthma, typical COPD, and those with overlap features...
December 26, 2016: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/27942211/computer-quantification-of-angle-of-collapse-on-maximum-expiratory-flow-volume-curve-for-diagnosing-asthma-copd-overlap-syndrome
#16
Wei Wang, Mengshuang Xie, Shuang Dou, Liwei Cui, Wei Xiao
BACKGROUND: In a previous study, we demonstrated that asthma patients with signs of emphysema on quantitative computed tomography (CT) fulfill the diagnosis of asthma-COPD overlap syndrome (ACOS). However, quantitative CT measurements of emphysema are not routinely available for patients with chronic airway disease, which limits their application. Spirometry was a widely used examination tool in clinical settings and shows emphysema as a sharp angle in the maximum expiratory flow volume (MEFV) curve, called the "angle of collapse (AC)"...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27942210/airflow-obstruction-is-it-asthma-or-is-it-copd
#17
REVIEW
Paola Rogliani, Josuel Ora, Ermanno Puxeddu, Mario Cazzola
Despite the availability of guideline recommendations, diagnostic confusion between COPD and asthma appears common, and often it is very difficult to decide whether the obstruction is caused by asthma or COPD in a patient with airway obstruction. However, there are well-defined features that help in differentiating asthma from COPD in the presence of fixed airflow obstruction. Nonetheless, the presentations of asthma and COPD can converge and mimic each other, making it difficult to give these patients a diagnosis of either condition...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27877033/combination-therapy-of-inhaled-steroids-and-long-acting-beta2-agonists-in-asthma-copd-overlap-syndrome
#18
Suh-Young Lee, Hye Yun Park, Eun Kyung Kim, Seong Yong Lim, Chin Kook Rhee, Yong Il Hwang, Yeon-Mok Oh, Sang Do Lee, Yong Bum Park
BACKGROUND: The efficacy of inhaled corticosteroids (ICSs)/long-acting beta2-agonist (LABA) treatment in patients with asthma-chronic obstructive pulmonary disease (COPD) overlap syndrome (ACOS) compared to patients with COPD alone has rarely been examined. This study aimed to evaluate the clinical efficacy for the improvement of lung function after ICS/LABA treatment in patients with ACOS compared to COPD alone patients. METHODS: Patients with stable COPD were selected from the Korean Obstructive Lung Disease (KOLD) cohort...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27798319/treatment-patterns-in-asthma-chronic-obstructive-pulmonary-disease-overlap-syndrome
#19
Maithili Deshpande, Jennifer Arnoldi
BACKGROUND: Asthma and chronic obstructive pulmonary disease (COPD) overlap syndrome (ACOS) is a complex disease entity with limited guidance surrounding medication therapy. OBJECTIVE: To evaluate a patient population with possible ACOS and their medication regimen based on the Global Initiative for Asthma and Global Initiative for COPD joint statement for ACOS. METHODS: This was a retrospective study based at a large clinical practice within a school of medicine...
October 25, 2016: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/27796796/the-reemergence-of-the-asthma-copd-overlap-syndrome-characterizing-a-syndrome-in-the-precision-medicine-era
#20
REVIEW
Stephanie A Christenson
PURPOSE OF REVIEW: The asthma-COPD overlap syndrome (ACOS) has reemerged in the medical literature. This review addresses our current understanding of ACOS as a clinical and biological entity and how new and existing therapies may be targeted to this group. RECENT FINDINGS: Many studies suggest that ACOS is common and associated with more morbidity than asthma and COPD in general. However, there is no consensus on an ACOS definition, likely due to the heterogeneity of the disease...
November 2016: Current Allergy and Asthma Reports
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