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Coal worker pneumoconiosis

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https://www.readbyqxmd.com/read/28514304/diagnostic-and-clinical-application-value-of-magnetic-resonance-imaging-mri-for-progressive-massive-fibrosis-of-coal-worker-pneumoconiosis-case-reports
#1
Lansheng Zhang, Chun Wang, Qiuyue Yan, Tao Zhang, Zhengxiang Han, Guan Jiang
RATIONALE: Using magnetic resonance imaging (MRI), we diagnosed pneumoconiosis by identifying the content and distribution of hydrogen protons in the water molecules in different tissues and lesions. PATIENT CONCERNS: 25 cases of CWP patients with progressive massive fibrosis (PMF) lesions. DIAGNOSES: Patients were correctly diagnosed, with one case each of Phase I and II pneumoconiosis and 23 cases of Phase III pneumoconiosis. INTERVENTIONS: None...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28497853/respiratory-morbidity-among-u-s-coal-miners-in-states-outside-of-central-appalachia
#2
Laura E Reynolds, David J Blackley, Anthony S Laney, Cara N Halldin
BACKGROUND: Recent NIOSH publications have focused on the respiratory health of coal miners in central Appalachia, yet 57% of U.S. coal miners work in other regions. We characterized respiratory morbidity in coal miners from these regions. METHODS: Active coal miners working outside of central Appalachia who received chest radiographs and/or spirometry during 2005-2015 were included. Chest radiographs were classified according to International Labour Office standards and spirometry was interpreted using the American Thoracic Society guidelines...
May 12, 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28481235/survival-analysis-of-coal-workers-pneumoconiosis-cwp-patients-in-a-state-owned-mine-in-the-east-of-china-from-1963-to-2014
#3
Lei Han, Qianqian Gao, Jingjin Yang, Qiuyun Wu, Baoli Zhu, Hengdong Zhang, Bangmei Ding, Chunhui Ni
To investigate the mortality probability, life expectancy of coal workers' pneumoconiosis (CWP), and related factors of life expectancy, a total of 495 patients with CWP were diagnosed and reported from 1963 to 2014 in a state-owned mine in the east of China. The life table method, log rank method, and Cox regression model were used for survival analysis. 95 out of 495 CWP died during this period. The mortality rate was 19.19%. The average life span was 12.1 (0.0-33.2) years and average death age was 57.4 (33...
May 6, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28444932/the-association-of-lamb1-polymorphism-and-expression-changes-with-the-risk-of-coal-workers-pneumoconiosis
#4
Xiaoming Ji, Baiqun Wu, Ruhui Han, Jingjin Yang, Esther Ayaaba, Ting Wang, Lei Han, Chunhui Ni
BACKGROUND: Pneumoconiosis is a serious occupational disease worldwide, which is characterized by irreversible and diffuse lung fibrotic lesions. Laminin beta 1(LAMB1) is widely expressed in tissues and it is crucial for both lung morphogenesis and physiological function. In this study, we explored the association between LAMB1 rs4320486 and risk of pneumoconiosis in a Chinese population, as well as its mechanisms. METHODS: In this case-control study, 600 CWP patients and 605 controls were genotyped for the LAMB1 rs4320486 polymorphism using TaqMan methods...
April 26, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28430556/pneumoconioses-radiographs-in-a-large-population-of-u-s-coal-workers-variability-in-a-reader-and-b-reader-classifications-by-using-the-international-labour-office-classification
#5
Cara N Halldin, David J Blackley, Edward L Petsonk, A Scott Laney
Purpose To assess the level of concordance between chest radiographic classifications of A and B Readers in a national surveillance program offered to U.S. coal miners over an approximate 36-year period. Materials and Methods The National Institute for Occupational Safety and Health (NIOSH) Coal Workers' Health Surveillance Program (CWHSP) is a surveillance program with nonresearch designation and is exempt from Human Subjects Review Board approval (11-DRDS-NR03). Thirty-six years of data (1979-2015) from the CWHSP were analyzed, which included all conventional screen-film radiographs with a classification by at least one A Reader and one B Reader...
April 21, 2017: Radiology
https://www.readbyqxmd.com/read/28408654/radiographic-disease-progression-in-contemporary-us-coal-miners-with-progressive-massive-fibrosis
#6
A Scott Laney, David John Blackley, Cara N Halldin
INTRODUCTION: Among contemporary US coal miners, there has been an increase in the prevalence and severity of pneumoconiosis, including its advanced form progressive massive fibrosis (PMF). We examine radiographic progression in Coal Workers' Health Surveillance Program (CWHSP) participants. METHODS: CWHSP participants with a final determination of PMF during 1 January 2000-1 October 2016 with at least one prior radiograph in the system were included. We characterised demographics, participation and progression patterns...
April 13, 2017: Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28370783/coal-mine-dust-lung-disease-in-the-modern-era
#7
REVIEW
Jennifer L Perret, Brian Plush, Philippe Lachapelle, Timothy S C Hinks, Clare Walter, Philip Clarke, Louis Irving, Pat Brady, Shyamali C Dharmage, Alastair Stewart
Coal workers' pneumoconiosis (CWP), as part of the spectrum of coal mine dust lung disease (CMDLD), is a preventable but incurable lung disease that can be complicated by respiratory failure and death. Recent increases in coal production from the financial incentive of economic growth lead to higher respirable coal and quartz dust levels, often associated with mechanization of longwall coal mining. In Australia, the observed increase in the number of new CWP diagnoses since the year 2000 has necessitated a review of recommended respirable dust exposure limits, where exposure limits and monitoring protocols should ideally be standardized...
May 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28355704/-a-trend-analysis-of-the-incidence-of-occupational-diseases-in-chongqing-china-from-2006-to-2014
#8
X C Liu, D Luo, G L Liu, J Y Zhang, H D Zhang, S Q Cheng
Objective: To investigate the incidence of occupational diseases in Chongqing, China, from 2006 to 2014, and to analyze the harm, features, and trend of occupational diseases in Chongqing. Methods: The data of new cases of occupational diseases from 2006 to 2014 were collected, and the patients with a confirmed diagnosis of occupational diseases were selected as study subjects to analyze the incidence of occupational diseases in Chongqing. Results: There were 17499 cases of occupational diseases in total in Chongqing from 2006 to 2014...
February 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28272360/mortality-in-miners-with-coal-workers-pneumoconiosis-in-the-czech-republic-in-the-period-1992-2013
#9
Hana Tomášková, Anna Šplíchalová, Hana Šlachtová, Pavel Urban, Zdeňka Hajduková, Irena Landecká, Rostislav Gromnica, Petr Brhel, Daniela Pelclová, Zdeněk Jirák
While working underground, miners are exposed to a number of risk factors that have a negative impact on their health and may be a cause of an increased mortality in miners. The aim of the study was to compare total and specific mortality in black coal miners with acknowledged coal-workers' pneumoconiosis (CWP) and without CWP, and the mortality of the general male population in the Czech Republic in the period 1992-2013. The sample consisted of 3476 coal miners with CWP and 6687 ex-coal miners without CWP, who were removed after achieving the maximum permissible exposure (MPE)...
March 7, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28148238/cross-section-analysis-of-coal-workers-pneumoconiosis-and-higher-brachial-ankle-pulse-wave-velocity-within-kailuan-study
#10
Yao Zheng, Lirong Liang, Tianbang Qin, Guang Yang, Shasha An, Yang Wang, Zhifang Li, Zhongda Shao, Xiuping Zhu, Taicheng Yao, Shouling Wu, Jun Cai
BACKGROUND: Brachial-ankle pulse wave velocity (baPWV) is an independent predictor of cardiovascular events and mortality. However, there is no related data on the association of baPWVwith coal workers' pneumoconiosis (CWP). We explored the baPWV in subjects withCWP and the associated risk factors. METHODS: Thiscase-control study included 1,007 male CWP cases without a history of stroke and coronary heart disease and 1,007 matched controls from the Kailuan cohort study...
February 2, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28139521/association-between-genetic-variants-of-transforming-growth-factor-%C3%AE-1-and-susceptibility-of-pneumoconiosis-a-meta-analysis
#11
Chang-Wen Deng, Xing-Xing Zhang, Jin-Huan Lin, Li-Fei Huang, Yu-Lan Qu, Chong Bai
BACKGROUND: Transforming growth factor-beta 1 (TGF-β1) and gene variants have been extensively studied in various human diseases. For example, TGF-β1 polymorphisms were associated with fibrosis and pneumoconiosis, but the data remained controversial. The aim of this meta-analysis was to assess the association between TGF-β1 -509 C>T [rs1800469], +869 T>C [rs1800470], and +915 G>C [rs1800471] polymorphisms and pneumoconiosis. METHODS: A comprehensive literature search was conducted through searching in PubMed, Embase, the Chinese Biomedical Database, and the Wei Pu (Chinese) Database by the end of April 2016...
February 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/27977638/resurgence-of-progressive-massive-fibrosis-in-coal-miners-eastern-kentucky-2016
#12
David J Blackley, James B Crum, Cara N Halldin, Eileen Storey, A Scott Laney
Coal workers' pneumoconiosis, also known as "black lung disease," is an occupational lung disease caused by overexposure to respirable coal mine dust. Inhaled dust leads to inflammation and fibrosis in the lungs, and coal workers' pneumoconiosis can be a debilitating disease. The Federal Coal Mine Health and Safety Act of 1969 (Coal Act),* amended in 1977, established dust limits for U.S. coal mines and created the National Institute for Occupational Safety and Health (NIOSH)-administered Coal Workers' Health Surveillance Program with the goal of reducing the incidence of coal workers' pneumoconiosis and eliminating its most severe form, progressive massive fibrosis (PMF),(†) which can be lethal...
December 16, 2016: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/27956734/emphysema-and-airflow-obstruction-in-non-smoking-coal-miners-with-pneumoconiosis
#13
Bülent Altınsoy, İbrahim İlker Öz, Fatma Erboy, Meltem Tor, Figen Atalay
BACKGROUND Accumulating evidence shows that functional impairment in subjects with coal workers' pneumoconiosis (CWP) is principally due to emphysema and airflow obstruction, rather than underlying restrictive mechanisms. However, cigarette smoking has remained a major confounder. The aim of this study was to assess whether coal dust exposure was associated with emphysema and/or airflow obstruction in the absence of smoking history. MATERIAL AND METHODS The subjects evaluated for possible pneumoconiosis between 2013 and 2015 were retrospectively enrolled into this study...
December 13, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27931056/-guideline-s2k-awmf-of-the-deutsche-gesellschaft-f%C3%A3-r-pneumologie-und-beatmungsmedizin-and-the-deutsche-gesellschaft-f%C3%A3-r-arbeitsmedizin-und-umweltmedizin-diagnostics-and-expert-opinion-in-the-occupational-disease-no-4101-silicosis-including-coal-worker-s-pneumoconiosis
#14
X Baur, M Heger, R M Bohle, K G Hering, K Hofmann-Preiß, D Nowak, A Tannapfel, H Teschler, T Voshaar, T Kraus
During the last 1.5 years an update of the guideline on silicosis was made by an interdisciplinary working group. New medical and scientific knowledge and the experience in expert opinion practice were taken into account.By preparing the initial guideline in 2010 standardization of diagnostics and adaption of the "Moers convention" which was not based on medical knowledge was in the focus, whereas the current update deals with fine emendation and extension, especially of the compensation rate (adaption with the Reichenhall recommendation)...
December 2016: Pneumologie
https://www.readbyqxmd.com/read/27930489/screening-and-preliminary-verification-of-a-phage-display-single-chain-antibody-library-against-coal-workers-pneumoconiosis
#15
Guang-Hui Zhang, Li Li, Changfu Hao, Jing-Chao Ren, Hongyi Zhang, Jie Jiao, Liyun Gao, Shibin Ding, Sanqiao Yao, Wu Yao, Weidong Wu
OBJECTIVES: To construct a phage display human antibody library (PDHAL) against pneumoconiosis for the diagnosis and treatment of coal worker pneumoconiosis (CWP). METHODS: The PDHAL was established via CWP blood and six positive antibodies were discovered. 867 coal workers (558 CWP and 309 without CWP) and 393 controls were recruited to validate the results. RESULTS: A PDHAL against CWP was established, from which six strong positive clones were selected, sequenced and identified as VEGF, interleukin-18, HSP70, HER3, Gz-B and RF...
December 2016: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/27866547/-prevalence-of-pneumoconiosis-in-a-coal-enterprise-from-2002-to-2013
#16
X T Wang, G Zhang
Objective: To investigate the prevalence of pneumoconiosis in a coal enterprise, and to provide a basis for the prevention and treatment of pneumoconiosis. Methods: The workers' occupational health examination data were collected, and a cross-sectional study was performed to analyze the prevalence of pneumoconiosis. Results: A total of 62 976 person times of occupational health examination were performed for the workers exposed to dust in this enterprise from 2002 to 2013. There were 8 445 cases of pneumoconiosis diagnosed in total, and the mean detection rate was 13...
September 20, 2016: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/27866545/-value-of-low-dose-multi-slice-spiral-ct-chest-scan-in-diagnosis-of-coal-workers-pneumoconiosis
#17
P Du, A H Cao, Z W Guo, Q Shao, K Xu
Objective: To investigate the value of low-dose multi-slice CT (MSCT) chest scan in the diagnosis of coal workers' pneumoconiosis. Methods: A total of 90 patients with a confirmed diagnosis of coal workers' pneumoconiosis were enrolled, and under the conditions of fixed tube voltage, pitch, and slice thickness, they underwent CT scan with a normal dose (150 mA) and a low dose (30-50 mA). The quality of images obtained from two scans was compared, and the imaging findings, opacity profusion, stage, and radiation doses were also compared...
September 20, 2016: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/27866542/-analyse-coal-workers-pneumoconiosis-deaths-reported-in-beijing-since-1997-to-2014
#18
Y Fang, F R Zhang, X Y Chang
No abstract text is available yet for this article.
September 20, 2016: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/27808662/elemental-properties-of-coal-slag-and-measured-airborne-exposures-at-two-coal-slag-processing-facilities
#19
Christopher Mugford, Randy Boylstein, Jenna L Gibbs
In 1974, the National Institute for Occupational Safety and Health recommended a ban on the use of silica sand abrasives containing >1% silica due to the risk of silicosis. This gave rise to substitutes including coal slag. An Occupational Safety and Health Administration investigation in 2010 uncovered a case cluster of suspected pneumoconiosis in four former workers at a coal slag processing facility in Illinois, possibly attributable to occupational exposure to coal slag dust. This article presents the results from a National Institute for Occupational Safety and Health industrial hygiene survey at the same coal slag processing facility and a second facility...
May 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27755862/socio-demographic-and-clinical-characteristics-of-turkish-workers-with-pneumoconiosis
#20
Hilal Altınöz, Cengiz Çelikkalkan, Gönül Dinç Horasan, Fatih Hamşioğlu, Nalan Cengiz, Hikmet Orbay
AIM: Pneumoconiosis is caused by inhaling dust. The aim of the study was to analyze 208 cases of workers' pneumoconiosis. METHOD: Patients' files were used for the descriptive study. RESULTS: All patients were male aged 38.82±13 years. The most important symptom was breathlessness. Patients were denim sandblasters (50.5%), dental technicians (12%), coal miners (6.7%), and others. The mean exposure time before pneumoconiosis occurred was shorter in denim sandblasters and teflon kitchenware producers compared to other occupations (5...
September 2016: Central European Journal of Public Health
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