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Global initiative for obstructive lung disease

Francesca de Blasio, Francesco de Blasio, Giulia Miracco Berlingieri, Andrea Bianco, Marta La Greca, Frits M E Franssen, Luca Scalfi
BACKGROUND: Multifrequency bioelectrical impedance analysis (MF-BIA) is a technique that measures body impedance (Z) at different frequencies (5, 10, 50, 100, and 250 kHz). Body composition may be estimated using empirical equations, which include BIA variables or, alternatively, raw BIA data may provide direct information on water distribution and muscle quality. OBJECTIVES: To compare raw MF-BIA data between COPD patients and controls and to study their relationship with respiratory and functional parameters in COPD patients...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Tahreema N Matin, Najib Rahman, Annabel H Nickol, Mitchell Chen, Xiaojun Xu, Neil J Stewart, Tom Doel, Vicente Grau, James M Wild, Fergus V Gleeson
Purpose To compare lobar ventilation and apparent diffusion coefficient (ADC) values obtained with hyperpolarized xenon 129 ((129)Xe) magnetic resonance (MR) imaging to quantitative computed tomography (CT) metrics on a lobar basis and pulmonary function test (PFT) results on a whole-lung basis in patients with chronic obstructive pulmonary disease (COPD). Materials and Methods The study was approved by the National Research Ethics Service Committee; written informed consent was obtained from all patients. Twenty-two patients with COPD (Global Initiative for Chronic Obstructive Lung Disease stage II-IV) underwent hyperpolarized (129)Xe MR imaging at 1...
October 12, 2016: Radiology
Berne Eriksson, Helena Backman, Apostolos Bossios, Anders Bjerg, Linnea Hedman, Anne Lindberg, Eva Rönmark, Bo Lundbäck
Low body mass index (BMI) and malnutrition in chronic obstructive pulmonary disease (COPD) are associated with a poor prognosis. The prevalence of underweight, as well as overweight, in severity grades of COPD is sparsely investigated in studies of the general population and the associated patterns of risk factors are not well established. The aim of the present study was to determine the association between severity grades of airflow limitation in COPD, and both underweight and obesity when corrected for possible confounding factors...
July 2016: ERJ Open Research
Eman Mahmoud Fathy, Hanaa Shafiek, Tamer S Morsi, Bassma El Sabaa, Abdelaziz Elnekidy, Mohamed Elhoffy, Mohamed Samy Atta
BACKGROUND: Bronchial vascular remodeling is an underresearched component of airway remodeling in COPD. Image-enhanced bronchoscopy may offer a less invasive method for studying bronchial microvasculature in COPD. OBJECTIVES: To evaluate endobronchial mucosal vasculature and changes in COPD by image-enhanced i-scan3 bronchoscopy and correlate them pathologically by analyzing bronchial mucosal biopsies. METHODS: This case-control study analyzed 29 COPD patients (41...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Izabella Uchmanowicz, Beata Jankowska-Polanska, Mariusz Chabowski, Bartosz Uchmanowicz, Andrzej M Fal
COPD is one of the most debilitating diseases. Frailty syndrome and advanced age may decrease the acceptance of illness, quality of life, and worsen health conditions in these patients, as well as lead to an increase in health care expenses. The aim of the study was to assess how the level of frailty affects the acceptance of illness in elderly patients with COPD. We also aimed to evaluate the associations between sociodemographic and clinical factors and the level of acceptance of illness, anxiety, and frailty in this group of patients...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Sau Nga Fu, Wai Cho Yu, Carlos King-Ho Wong, Margaret Choi-Hing Lam
PURPOSE: The purpose of this study was to define the prevalence of undiagnosed airflow obstruction (AO) among subjects with a history of smoking but no previous diagnosis of chronic lung disease. The finding of AO likely represents diagnosis of chronic obstructive pulmonary disease. PATIENTS: People aged ≥30 years with a history of smoking who attended public outpatient clinics for primary care services were included in this study. METHODS: A cross-sectional survey in five clinics in Hong Kong using the Breathlessness, Cough, and Sputum Scale, the Lung Function Questionnaire, and office spirometry was conducted...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Richa Mittal, Sunil K Chhabra
The new A-B-C-D Global Initiative for Chronic Obstructive Lung Disease (GOLD) classification of severity of chronic obstructive pulmonary disease (COPD) is based on combined symptoms and exacerbation risk assessment. The assumed equivalence between dyspnoea modified Medical Research Council (mMRC) grade ≥2 and COPD Assessment Test (CAT) score ≥ 10 to identify more symptoms has been questioned. Whether the exacerbation risk assessment criteria, old GOLD spirometry staging and frequency of exacerbations, are equivalent has not been examined...
October 10, 2016: COPD
Mafalda Ramos, John Haughney, Nathaniel Henry, Leandro Lindner, Mark Lamotte
PURPOSE: Aclidinium-formoterol 400/12 µg is a long-acting muscarinic antagonist (LAMA) and a long-acting β2-agonist in a fixed-dose combination used in the management of patients with COPD. This study aimed to assess the cost-effectiveness of aclidinium-formoterol 400/12 µg against the long-acting muscarinic antagonist aclidinium bromide 400 µg. MATERIALS AND METHODS: A five-health-state Markov transition model with monthly cycles was developed using MS Excel to simulate patients with moderate-to-severe COPD and their initial lung-function improvement following treatment with aclidinium-formoterol 400/12 µg or aclidinium 400 µg...
2016: ClinicoEconomics and Outcomes Research: CEOR
Mizuho Nishio, Kazuaki Nakane, Yutaka Tanaka
BACKGROUND: Homology is a mathematical concept that can be used to quantify degree of contact. Recently, image processing with the homology method has been proposed. In this study, we used the homology method and computed tomography images to quantify emphysema. METHODS: This study included 112 patients who had undergone computed tomography and pulmonary function test. Low-attenuation lung regions were evaluated by the homology method, and homology-based emphysema quantification (b 0, b 1, nb 0, nb 1, and R) was performed...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Marta Erdal, Ane Johannessen, Tomas Mikal Eagan, Per Bakke, Amund Gulsvik, Rune Grønseth
OBJECTIVES: The objectives of this study were to estimate the impact of recruitment source and outcome definition on the incidence of acute exacerbations of COPD (AECOPD) and explore possible predictors of AECOPD. PATIENTS AND METHODS: During a 1-year follow-up, we performed a baseline visit and four telephone interviews of 81 COPD patients and 132 controls recruited from a population-based survey and 205 hospital-recruited COPD patients. Both a definition based on health care utilization and a symptom-based definition of AECOPD were applied...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Kazuki Okura, Atsuyoshi Kawagoshi, Masahiro Iwakura, Keiyu Sugawara, Hitomi Takahashi, Takeshi Kashiwagura, Mitsunobu Homma, Masahiro Satake, Takanobu Shioya
BACKGROUND AND OBJECTIVE: Diaphragm function might be useful to predict nocturnal oxygen desaturation in COPD. Ultrasonography has been widely used for the assessment of the diaphragm. We aimed to investigate the relationship between the contractile capability of the diaphragm assessed by ultrasonography and the nocturnal percutaneous arterial oxygen saturation (NSpO2 ) in COPD. METHODS: Twenty-eight male patients with COPD (age, 73 ± 7 years; forced expiratory volume in 1 s (FEV1 ), 54...
September 9, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
Fulsen Bozkus, Nursel Dikmen, Hatice Sahin, Anil Samur
BACKGROUND: Gamma-glutamyl transferase (gamma-GT) is an enzyme present in the cell membranes, which is used as a new biomarker in prediction of inflammation, myocardial infarction, stroke, and cardiac death. The objective of this study was to investigate the relationship between serum levels of gamma-GT and cardiovascular disease in subjects with COPD and the correlation between serum gamma-GT level and degree of the limitation of air flow in COPD. METHODS: A total of 70 subjects (46...
September 6, 2016: Respiratory Care
Roberto Rodriguez-Roisin, MeiLan K Han, Jørgen Vestbo, Jadwiga A Wedzicha, Prescott G Woodruff, Fernando J Martinez
The 2001 Global Initiative for Chronic Obstructive Lung Disease (GOLD) Report defined five stages of spirometric severity (post-bronchodilator FEV1/FVC≥0.7): 0, and 1 (mild) to 4 (very severe). GOLD Stage 0 was defined by chronic cough and sputum production or chronic mucus hypersecretion (CMH) alone with preserved FEV1/FVC. Subsequently, GOLD 0 was discarded as further evidence of COPD development in subjects with GOLD 0 was not more likely to develop. When expanding symptomatic burden in GOLD 0 to include other chronic respiratory symptoms, such as dyspnea, wheeze, poor quality of life, limited physical activity, and 'COPD exacerbations-like' events needing health resources, symptomatic smokers with normal FEV1 resulted in larger risk of death...
September 6, 2016: American Journal of Respiratory and Critical Care Medicine
Hiang Ping Chan, Amartya Mukhopadhyay, Pauline Lee Poh Chong, Sally Chin, Xue Yun Wong, Venetia Ong, Yiong Huak Chan, Tow Keang Lim, Jason Phua
BACKGROUND AND OBJECTIVE: COPD is a complex condition with a heavy burden of disease. Many multidimensional tools have been studied for their prognostic utility but none has been universally adopted as each has its own limitations. We hypothesize that a multidimensional tool examining four domains, health-related quality of life, disease severity, systemic effects of disease and patient factors, would better categorize and prognosticate these patients. METHODS: We first evaluated 300 patients and found four factors that predicted mortality: BMI, airflow obstruction, St George's Respiratory Questionnaire and age (BOSA)...
August 31, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
Kyung Soo Chung, Ji Ye Jung, Moo Suk Park, Young Sam Kim, Se Kyu Kim, Joon Chang, Joo Han Song
BACKGROUND: Forced expiratory volume in 1 second (FEV1)/forced expiratory volume in 6 seconds (FEV6) has been proposed as an alternative to FEV1/forced vital capacity (FVC) for detecting airway obstruction. A fixed cut-off value for FEV1/FEV6 in a Korean population is lacking. We investigated a fixed cut-off for FEV1/FEV6 as a surrogate for FEV1/FVC for detecting airway obstruction. MATERIALS AND METHODS: We used data obtained in the 5 years of the Fifth and Sixth Korean National Health and Nutrition Examination Survey...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Xuehua Ke, Jessica Marvel, Tzy-Chyi Yu, Debra Wertz, Caroline Geremakis, Liya Wang, Judith J Stephenson, David M Mannino
OBJECTIVE: To evaluate the impact of lung function, measured as forced expiratory volume in 1 second (FEV1) % predicted, on health care resource utilization and costs among patients with COPD in a real-world US managed-care population. METHODS: This observational retrospective cohort study utilized administrative claim data augmented with medical record data. The study population consisted of patients with one or more medical claims for pre- and postbronchodilator spirometry during the intake period (July 1, 2012 to June 30, 2013)...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Carmen Pizarro, Fabian van Essen, Fabian Linnhoff, Robert Schueler, Christoph Hammerstingl, Georg Nickenig, Dirk Skowasch, Marcel Weber
BACKGROUND: COPD and congestive heart failure represent two disease entities of growing global burden that share common etiological features. Therefore, we aimed to identify the degree of left ventricular (LV) dysfunction in COPD as a function of COPD severity stages and concurrently placed particular emphasis on the presence of overlapping obstructive sleep apnea (OSA). METHODS: A total of 85 COPD outpatients (64.1±10.4 years, 54.1% males) and 20 controls, matched for age, sex, and smoking habits, underwent speckle tracking echocardiography for LV longitudinal strain imaging...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Yjg Korpershoek, I D Bos-Touwen, J M de Man-van Ginkel, J-Wj Lammers, M J Schuurmans, Jca Trappenburg
BACKGROUND: COPD self-management is a complex behavior influenced by many factors. Despite scientific evidence that better disease outcomes can be achieved by enhancing self-management, many COPD patients do not respond to self-management interventions. To move toward more effective self-management interventions, knowledge of characteristics associated with activation for self-management is needed. The purpose of this study was to identify key patient and disease characteristics of activation for self-management...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Chih-Hao Chang, Li-Pang Chuang, Shih-Wei Lin, Chung-Shu Lee, Ying-Huang Tsai, Yu-Feng Wei, Shih-Lung Cheng, Jeng-Yuan Hsu, Ping-Hung Kuo, Chong-Jen Yu, Ning-Hung Chen
BACKGROUND: Sleep disturbance is a common complaint in patients with chronic obstructive lung disease (COPD). However, the factors resulting in sleep disturbance remain unclear. This retrospective, observational, multicenter study aimed to identify the factors associated with sleep disturbance in patients with COPD. METHODS: The study was a retrospective, observational, and multicenter research. Data including age, sex, body mass index, smoking status, COPD inhaler prescribed, clinical symptoms, pulmonary function tests, medical history of comorbidities, and questionnaires were collected...
2016: BMC Pulmonary Medicine
Larissa A de Castro, Laís Rg Ribeiro, Rafael Mesquita, Débora R de Carvalho, Josiane M Felcar, Myriam F Merli, Karen Bp Fernandes, Rubens A da Silva, Denilson C Teixeira, Martijn A Spruit, Fabio Pitta, Vanessa S Probst
BACKGROUND: Studies have shown that individuals with COPD have impaired body balance, probably caused by the disease's multisystemic manifestations plus age-related decline in balance, potentially increasing the risk of falling and its consequences. However, little is known about the profile of individuals with COPD who present balance impairments, especially related to sex and disease severity stages. The aim of this work was to compare static and functional balance between subjects with COPD and healthy controls and to check possible differences according to sex and degrees of disease severity...
August 2, 2016: Respiratory Care
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