Respiratory symptoms and pulmonary function in coal miners: Looking into the effects of simple pneumoconiosis

Wang, Xiaorong; Yu, Ignatius Tak-sun; Wong, Tze Wai; Yano, Eiji

doi:10.1002/(sici)1097-0274(199902)35:2<124::aid-ajim3>3.0.co;2-m

Cited by 25 publications

(19 citation statements)

References 21 publications

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“…There has been much debate in the literature as to whether a decline in lung function is noted among those with CWP in the absence of PMF. Studies by various researchers have found significant relationships (Collins et al 1988;Zhicheng 1986;Wang et al 1999). Our findings lend support to those studies.…”

Section: Conclusion and Discussionsupporting

confidence: 91%

“…This is in contrast to the findings in some recent studies, which have shown associations between simple pneumoconiosis and various respiratory symptoms, while controlling for dust exposure and smoking (Collins et al 1988;Wang et al 1999).…”

Section: Introductioncontrasting

confidence: 99%

“…The association of simple CWP with decrements in pulmonary function, symptoms, and disability is less clear and more controversial, with several early studies reporting no significant association between CWP and respiratory impairment (Cochrane and Higgins 1961;Morgan et al 1972;Hankinson et al 1975). In contrast, later studies have shown significant relationships between CWP (and specific opacity types) and lung function outcomes (Collins et al 1988;Zhicheng 1986;Wang et al 1999).…”

Section: Introductionmentioning

confidence: 90%

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Radiographic outcomes among South African coal miners

Naidoo

Robins

Solomon

et al. 2004

Int Arch Occup Environ Health

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Section: Conclusion and Discussionsupporting

confidence: 91%

Section: Introductioncontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 90%

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Radiographic outcomes among South African coal miners

Naidoo

Robins

Solomon

et al. 2004

Int Arch Occup Environ Health

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“…Our findings were in agreement with Wang's study revealing that the miners with coal workers' pneumoconiosis had lower values of pulmonary function and higher prevalence of respiratory symptoms than did those without it, and a significant relationship was found between coal workers' pneumoconiosis and decrements in FVC and diffusing capacity. In addition, workers with stages II and III diseases showed poorer pulmonary function and more common symptoms [17,18]. Furthermore, we determined whether or not pulmonary function variables could be used to predict the impairment of the right cardiac structure.…”

Section: Discussionmentioning

confidence: 99%

Impairment of pulmonary function and changes in the right cardiac structure of pneumoconiotic coal workers in China

Bian¹,

Zhang²,

Jiang³

et al. 2015

Int J Occup Med Environ Health

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Objectives: Information on the changes of pulmonary function and the right cardiac structure in patients with coal worker's pneumoconiosis in China is very scarce. This study was performed to clarify the changes of pulmonary function and right cardiac structure in patients with coal worker's pneumoconiosis in China. Material and Methods: Pulmonary function, pulmonary artery systolic pressure, and the right cardiac structure were evaluated by spirometry and color Doppler echocardiography. Results: The pulmonary artery systolic pressure of patients with coal worker's pneumoconiosis was increased with disease severity. Patients with coal worker's pneumoconiosis also exhibited an impaired pulmonary function and altered right cardiac structure compared with control subjects. A significant linear correlation of the variables of pulmonary ventilation and diffusion function with the indicators of the right cardiac structure was found in patients with coal worker's pneumoconiosis in China. Conclusions: This study elucidated a deterioration of pulmonary function and right cardiac structure in patients with coal worker's pneumoconiosis in China.

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“…After a long monitoring of coal dust exposed workers without progressive massive fibrosis (PMF), R.S. Fraser et al [12], and A. Miller et al [13] have found interrelation between occupational exposure to dust and changes in FEV1. They have accepted the relationship between anthracosilicosistype PMF and bronchial obstruction.…”

Section: Introductionmentioning

confidence: 99%

Relationship Between Impairments of Fef50% and Lung Emphysema Among Workers Exposed to Mineral Dusts

Петрова¹

2017

RAD Conference Proceedings

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Abstract. The aim of the study is to analyze the relationship between the decreases of FEF50% -on the one hand, and radiologically verified compensatory lung emphysema among workers, exposed to mineral dust at the work place -on the other. A case control study among 480 quartz-exposed underground miners, 120 asbestos-exposed workers, and 121 individuals without dust exposure was performed. The average age of the examined workers was 42.82 years, and the average duration of the dust exposure was 14.01 years. A clinical examination, as well as a chest radiography (by ILO'80), and spyrometry of all persons were done. We used SPSS software and one-way ANOVA. There was a significant decrease of the mean of FEF50% in cases with lung emphysema, accounted on the chest radiography (by ILO'80). We assume that the compensatory emphysema and reduction of FEF50% is associated with the formation of initial interstitial pulmonary fibrosis among workers exposed to mineral dust over a long period and in patients with pneumoconiosis. Conclusion 1 -The decrease of FEF50% is related to radiologically-established compensatory lung emphysema. Conclusion 2 -The investigation of FEF50%, combined with chest X-ray, is an appropriate constellation for periodical preventive medical check ups and assessment of health status for workers exposed to mineral dust.

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Respiratory symptoms and pulmonary function in coal miners: Looking into the effects of simple pneumoconiosis

Cited by 25 publications

References 21 publications

Radiographic outcomes among South African coal miners

Radiographic outcomes among South African coal miners

Impairment of pulmonary function and changes in the right cardiac structure of pneumoconiotic coal workers in China

Relationship Between Impairments of Fef50% and Lung Emphysema Among Workers Exposed to Mineral Dusts

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