carborundum pneumoconiosis - chest

environmental and iatrogenic lung disease

Nor is there a strong relation to dust burden: Caplan lesions are characteristically seen in chest radiographs that show little evidence of simple coal pneumoconiosis. Pathologists recognise the lesions as particularly large necrobiotic nodules similar to those seen in rheumatoid patients who are not exposed to dust (Fig. 7.1.17).

Respiratory Diseases in Hard Metal Workers: An Occupational

Respiratory diseases in hard metal workers: an occupational hygiene study in a factory 475 lurgy because tungsten has a high melting point. Met als, such as tungsten, titanium, tantalum, molyb denum, and niobium are blended with carbon and heated to form their

Pneumoconiosis

Pneumoconiosis - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. Pne PAUL A DWIYANU Lab/SMF Paru Kedokteran Respirasi RSUD ULIN FKU UNLAM We, the Forum of International Respiratory Societies (FIRS), convening at the 40th Union World Conference on Lung Health in Cancn, Mexico on 6 December 2009, recognize that

Pulmonary Impairment in Workers Exposed to Silicon Carbide

British Journal of Industrial Medicine 1992;49:489-493 489 Pulmonary impairment in workers exposed to silicon carbide G Marcer, G Bernardi, G B Bartolucci, G Mastrangelo, U Belluco, A Camposampiero, B Saia Abstract Two hundred and sixty seven workers

Occupational and Environmental Medicine (OEM)

Category 0(no pneumoconiosis) 25 26 Categories 2I-/-/-f, 3/-1-l (simple pneumoconiosis) 11 10 Categories A-C(PMF) 6 6 Total 42 42 There was almost full agreement with regard to diagnosis, and full agreement about the presence of P.M.F. In those cases stage

Some Aspects of the Respiratory Function in

Modern grinding wheels are made of alundum, carborundum, or related substances, or of synthetic resins which contain only a negligible amount of free silica (if any), but silicosis may nevertheless develop occasionally in workers engaged in their manufacture. On

Carborundum Pneumoconiosis

Carborundum is a synthetic abrasive manufactured through fusion of high grade silica sand and finely ground carbon in an electric furnace at 2,400C. It had been considered an inert dust until recently. Two recent epidemiologic studies in Quebec have documented an excess of interstitial lung disease in plant workers and some 30 workers have received workman compensation. Histopathologic

Pulmonary impairment in workers exposed to silicon

1992/7/1Bgin R, Dufresne A, Cantin A, Mass S, Sbastien P, Perrault G. Carborundum pneumoconiosis. Fibers in the mineral activate macrophages to produce fibroblast growth factors and sustain the chronic inflammatory disease. Chest. 1989 Apr; 95 (4):842–849. []

Respiratory Diseases in Hard Metal Workers: An Occupational

Respiratory diseases in hard metal workers: an occupational hygiene study in a factory 475 lurgy because tungsten has a high melting point. Met als, such as tungsten, titanium, tantalum, molyb denum, and niobium are blended with carbon and heated to form their

Is Silicon Carbide Dangerous?

* Silicon Carbide can affect you when breathed in. * Silicon Carbide can irritate the eyes and nose on contact. * Repeated high exposure to Silicon Carbide may result in Pneumoconiosis (chronic disease of the lungs) with chest x-ray changes, and a decrease in lung function with shortness of breath, wheezing and cough. Is Silicon

Respiratory diseases in hard metal workers: an

1. Br J Ind Med. 1986 Jul;43(7):474-85. Respiratory diseases in hard metal workers: an occupational hygiene study in a factory. Kusaka Y, Yokoyama K, Sera Y, Yamamoto S, Sone S, Kyono H, Shirakawa T, Goto S. A hygiene study of a hard metal factory was

Pneumoconiosis: Description, Categorization, Causes,

It is one of the most dangerous diseases of this generation, and it's an industrial disease, we call it by this name because it is a result of industry work. When someone exposes himself to the mineral dust or other particles, it gradually creates a lot of problems in

Pneumoconiosis in an Elderly Dentist

Numerous dusts found commonly in the dental laboratory have been suggested as potential pulmonary hazards. We recently noted a case of severe interstitial pulmonary fibrosis with intraalveolar deposition of unique foreign body inclusions in an elderly dentist. The composition of these particles was shown to be consistent with that of alginate impression powder. This is in contrast to

Which Surface Functionalities are implied in Dust Toxicity?

Bgin R, Dufresne A, Cantin A, Mass S, Sebastien P., Perrault G. (1989) Carborundum pneumoconiosis. Fibres in in the mineral activate macrophages to produce fibroblast growth factors and sustain the chronic inflammatory disease. Chest, 95: 842–849. PubMed CrossRef Google Scholar

Respiratory diseases in hard metal workers: an

A hygiene study of a hard metal factory was conducted from 1981 to 1984. All workers exposed to hard metal were medically examined and their exposure to cobalt measured. Eighteen employees had occupational asthma related to exposure to hard metal, a prevalence rate of 5.6%. Nine had a positive bronchial provocation test to cobalt and reactions of the immediate, late, or dual type were elicited

Respiratory System: The Variety of Pneumoconioses

Carborundum pneumoconiosis. Chest 95(4):842-849. Beijer L, M Carvalheiro, PG Holt, and R Rylander. 1990. Increased blood monocyte procoagulant activity in cotton mill workers. J. Clin Lab Immunol 33:125-127. Beral, V, P Fraser, M Booth, and L Carpenter In

Cancer Incidence among Workers in the Norwegian Silicon

Other studies have indicated that SiC dust might contribute to pneumoconiosis (5, 6). More recently, however, this condition has been attributed to the presence of SiC fibers in the dust ( 7, 8 ). SiC appears in several crystal modifications based on how the different silicon and carbon layers are stacked.

Pulmonaryimpairment in workersexposed to silicon carbide

Marcer,Bernardi,Bartolucci, Mastrangelo,Belluco, Camposampiero,Saia Table 1 Concentrations (mg/m3) ofrespirable dusts,quartz,andcrystobalite byjobcategory Respirabledust Jobcategory Noofsamples Geometricmean Range Quartz (range) Crystobalite (range)

Carborundum pneumoconiosis. Fibers in the mineral

1. Chest. 1989 Apr;95(4):842-9. Carborundum pneumoconiosis. Fibers in the mineral activate macrophages to produce fibroblast growth factors and sustain the chronic inflammatory disease. Bgin R(1), Dufresne A, Cantin A, Mass S, Sbastien P, Perrault G.

Occupational and Environmental Medicine (OEM)

Category 0(no pneumoconiosis) 25 26 Categories 2I-/-/-f, 3/-1-l (simple pneumoconiosis) 11 10 Categories A-C(PMF) 6 6 Total 42 42 There was almost full agreement with regard to diagnosis, and full agreement about the presence of P.M.F. In those cases stage

Lung granulomatosis in a dental technician, American

Background Dental technicians are potentially exposed to various occupational dusts and chemicals. Not surprisingly, occupational related lung diseases have been documented in this population. Methods We describe the case of a dental laboratory technician presenting progressive exertional dyspnea and cough. We used lung function tests, computed tomography, histological examination

Clearance of man made mineral fibres from the lungs

Bgin R, Dufresne A, Cantin A, Mass S, Sbastien P, Perrault G. Carborundum pneumoconiosis. Fibers in the mineral activate macrophages to produce fibroblast growth factors and sustain the chronic inflammatory disease. Chest. 1989 Apr; 95 (4):842–849. []

environmental and iatrogenic lung disease

Nor is there a strong relation to dust burden: Caplan lesions are characteristically seen in chest radiographs that show little evidence of simple coal pneumoconiosis. Pathologists recognise the lesions as particularly large necrobiotic nodules similar to those seen in rheumatoid patients who are not exposed to dust (Fig. 7.1.17).

Fibrosing interstitial lung diseases of idiopathic

Fibrosing interstitial lung diseases of idiopathic and exogenous origin. Prague – 20.06.2014 Rare exogenous ILDs (ILDs caused by metals, organic dust toxic syndrome, et al.) B. Nemery, MD, PhD Department of Public Health and Primary Care and Pneumology

Chapter 82

Its clinical symptoms consist of wheezing, chest tightness and breathlessness and non-productive cough which are usually delayed some several hours following work exposures. The latent period between commencement of work exposure and the onset of OAAAS is highly variable, ranging from 1 week to 10 years, depending upon the intensity and character of the exposure.

Mesothelioma and Asbestosis ~ Informasi Kedokteran

This condition may also be known as pneumoconiosis, or to be more precise, pneumoconiosis caused by asbestos inhalation. Asbestos refers to a group of naturally occurring hydrated mineral silicate fibers including two major forms: serpentine, represented by chrysotile (white asbestos) and amphibole, which includes crocidolite (blue asbestos), amosite (brown asbestos), anthophyllite, actinolite

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