Pneumoconiosis

Cullinan, Paul; Reid, Peter

doi:10.4104/pcrj.2013.00055

Cited by 80 publications

(59 citation statements)

References 10 publications

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“…1 It is the most prevalent type of pneumoconiosis. 2,3 It is characterized by symptoms of shortness of breath, cough, chest pain. It commonly occurs in workers involved in quarrying, mining, sandblasting, tunneling, foundry work and ceramics.…”

Section: Introductionmentioning

confidence: 99%

Pneumothorax in the cases of silicosis in southern part of Rajasthan

Sharma

Luhadia

et al. 2017

Int J Adv Med

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Background: Silicosis is an occupational lung disease caused by inhalation of dust containing crystalline silica particles of size 0.5-5 microns in diameter. It commonly occurs in workers involved in quarrying, mining, sandblasting, tunneling, foundry work and ceramics. Pneumothorax is one of the complications of silicosis. The occurrence of pneumothorax in a patient with silicosis is a rare event, but it may be fatal. The incidence of secondary spontaneous pneumothorax (SSP) in silicosis as such is not known. This study aims to report the cases of secondary spontaneous pneumothorax in patients of silicosis in Southern part of Rajasthan.Methods: 50 patients of silicosis established by historical, clinical evaluation and radiological evidence with increased dyspnoea were included in the study. In all patients Chest X ray was done immediately.Results: Among 50 patients of silicosis with increased dyspnoea, Chest X ray showed pneumothorax in 20 patients of which 4 had bilateral pneumothorax, 7 had right pneumothorax and 9 had left pneumothorax. The mean duration of exposure to silica particles was 10 years (5 to 15 years). All the patients had various degrees of dyspnoea and chest pain. Tube thoracostomy was performed in 15 patients while 5 patients were managed conservatively with oxygen and bronchodilators.Conclusions: Our study showed an increased incidence of secondary pneumothorax in silicosis patients. The occurrence of pneumothorax, though rare in silicosis is a potentially life-threatening complication and may cause serious morbidity and mortality. The patients of silicosis who develop sudden onset of dyspnoea should be promptly investigated for this complication.

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Section: Introductionmentioning

confidence: 99%

Pneumothorax in the cases of silicosis in southern part of Rajasthan

Sharma

Luhadia

et al. 2017

Int J Adv Med

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“…As it takes 10-20 years of exposure to produce silicosis [2] and as silicosis progresses even when there is no longer additional exposure, the disease could have its origin before immigration and could have manifested clinically in Switzerland. We determined the number of workers who had worked more than 10 or 20 years abroad before immigration.…”

Section: Silica Dust Concentrationsmentioning

confidence: 99%

“…The decreased incidence of silicosis started when the current Swiss OEL was implemented in 1975. Since the exposure time of 10-20 years is needed for the development of silicosis [2], the introduction of the Swiss OEL may only partially explain the decline in incidence. Surprisingly, 20 years after the implementation of the Swiss OEL, there was no further decline, and the incidence remained stable.…”

Section: Severity Of Silicosismentioning

confidence: 99%

“…Two thirds of the foreign workers had been working abroad (Me = 13 years) before coming to Switzerland. If we assume that 10-20 years of exposure are needed to develop quartz dust-related silicosis [2], then 28% and 60% of these workers would have been working long enough abroad to acquire silicosis outside of Switzerland (the percentages are lower in reality because we considered an employment rate of 100% when the rate was not provided in the medical dossier). After immigration, an "imported" silicosis progresses and is finally detected by a medical doctor.…”

Section: Acquisition Of Silica Outside Of Switzerlandmentioning

confidence: 99%

“…The most critical factor for the development of silicosis is the accumulated amount of crystalline SiO 2 [1]. Typically, approximately 10-20 years of exposure [2] are required until enough dust has been accumulated to lead to silicosis with obstructive and restrictive ventilation alterations and various symptoms, such as dyspnea or cough. In exceptional cases, silicosis develops after as little as 5-10 years (accelerated silicosis), or even faster after weeks to years following very high silica concentrations (acute silicosis or silicoproteinosis) [1].…”

Section: Introductionmentioning

confidence: 99%

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Silicosis in Switzerland

Koller¹,

Scholz²,

Pletscher³

et al. 2018

Int J Occup Med Environ Health

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Objectives:The correlation between quartz dust concentrations in the Swiss enterprises and the incidence of silicosis and other related diseases acknowledged as occupational diseases (OD) was investigated. Out of all measurements, 28% were above the Swiss occupational exposure limit (OEL) of 0.15 mg/m 3 (alveolar fraction). One hundred eighty-one individuals suffered from acknowledged quartz dust-related disease (179 silicosis and 2 chronic obstructive pulmonary disease (COPD)). Additionally, 8 out of these workers were diagnosed with lung cancer and 55 with COPD of a non-specified cause. Out of all workers, 46% were exposed to silica dust for the first time before 1975 when the current Swiss OEL was introduced. Out of the foreign workers, 63% began to work abroad, during which they could have at least partly acquired their silicosis. Out of all workers, 75% were ever-smokers. Conclusions: The incidence of silicosis decreased drastically from approximately 300 cases/year in the 1970s to fewer than 20 cases/year 20 years ago. Several findings of this study that could help to interpret the ongoing occurrence of the disease include excessive exposure in or outside of Switzerland in former or current times, vulnerability to the development of silicosis due to cigarette smoke, or poor compliance with wearing breathing masks. Int J Occup Med Environ Health 2018;31(5):659 -676

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Difficulties in distinguishing silicosis and pulmonary tuberculosis in silica‐exposed gold miners: A report of four cases

Maboso

Naude²,

Rees

et al. 2023

American J Industrial Med

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Silicosis and tuberculosis (TB) are both global health concerns, with high prevalence among miners from the South African gold mines. Although knowledge has accumulated about these two conditions as distinct diseases since the early 20th century, and despite progress in technology with multiple diagnostic tools and treatment options available for TB, the challenge of distinguishing and therefore efficiently managing these two conditions in this population remains as current as it was 100 years ago. To illustrate the diagnostic and health service problems of distinguishing TB and silicosis clinically and radiologically in former gold miners from the South African mines living in resource-poor areas, we discuss four cases reviewed for this report by a panel of experts. For each case, occupational history, past and current medical history, physical examination, radiological and laboratory findings are described. Common themes are: (1) poor agreement between radiological and clinical presentation; (2) poor agreement between radiology findings and detection of active TB on sputum Xpert MTB/RIF testing; and (3) difficulty in distinguishing the clinical and radiological presentations of silicosis and tuberculosis. Possible consequences at the population level are undertreatment or overtreatment of TB, and underdiagnosis or overdiagnosis of silicosis. There is a need for training of practitioners who are screening or attending to former gold miners in the clinical and radiological features of combined disease, using a curated database of miners' chest X-ray images.Investment in protocols for management of both acute and chronic silicotuberculosis in ex-miners is needed, as is clinical, epidemiologic, and operations research.

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Pneumoconiosis

Cited by 80 publications

References 10 publications

Pneumothorax in the cases of silicosis in southern part of Rajasthan

Pneumothorax in the cases of silicosis in southern part of Rajasthan

Silicosis in Switzerland

Difficulties in distinguishing silicosis and pulmonary tuberculosis in silica‐exposed gold miners: A report of four cases

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