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. 1972 Jan;29(1):50–55. doi: 10.1136/oem.29.1.50

Relationship of pulmonary impairment in simple coal workers' pneumoconiosis to type of radiographic opacity

Anthony Seaton 1,2, N LeRoy Lapp 1,2, W Keith C Morgan 1,2
PMCID: PMC1009350  PMID: 5015636

Abstract

Seaton, A., Lapp, N. L., and Morgan, W. K. C. (1972).Brit. J. industr. Med.,29, 50-55. Relationship of pulmonary impairment in simple coal workers' pneumoconiosis to type of radiographic opacity. From a group of 1 461 working coal miners who participated in an epidemiological study, 223 men with simple pneumoconiosis were selected on the basis of the type of small rounded opacity noted to be present in their chest films. No differences in spirometry or lung volumes were found between those with the micronodular (q) and those with pinhead (p) opacities. Twenty-five non-smoking miners with category 2 or 3 simple coal workers' pneumoconiosis were subsequently selected for further pulmonary function testing. Studies of lung volumes and pulmonary mechanics showed no difference between those with the pinhead and micronodular types of opacity; however, transfer factor was somewhat lower in those with the former.

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Selected References

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  1. BLAKEMORE W. S., FORSTER R. E., MORTON J. W., OGILVIE C. M. A standardized breath holding technique for the clinical measurement of the diffusing capacity of the lung for carbon monoxide. J Clin Invest. 1957 Jan;36(1 Pt 1):1–17. doi: 10.1172/JCI103402. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. BRISCOE W. A., DUBOIS A. B. The relationship between airway resistance, airway conductance and lung volume in subjects of different age and body size. J Clin Invest. 1958 Sep;37(9):1279–1285. doi: 10.1172/JCI103715. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. CAPLAN A., PAYNE R. B., WITHEY J. L. A broader concept of Caplan's syndrome related to rheumatoid factors. Thorax. 1962 Sep;17:205–212. doi: 10.1136/thx.17.3.205. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. DUBOIS A. B., BOTELHO S. Y., COMROE J. H., Jr A new method for measuring airway resistance in man using a body plethysmograph: values in normal subjects and in patients with respiratory disease. J Clin Invest. 1956 Mar;35(3):327–335. doi: 10.1172/JCI103282. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. ENGLERT M., DECOSTER A. LA CAPACIT'E DE DIFFUSION PULMONAIRE DANS L'ANTHRACOSILICOSE MICRONODULAIRE. J Fr Med Chir Thorac. 1965 Feb-Mar;19:159–173. [PubMed] [Google Scholar]
  6. Hankinson J. L., Lapp N. L. Time-pulse generator for flow-volume curves. J Appl Physiol. 1970 Jul;29(1):109–110. doi: 10.1152/jappl.1970.29.1.109. [DOI] [PubMed] [Google Scholar]
  7. KORY R. C., CALLAHAN R., BOREN H. G., SYNER J. C. The Veterans Administration-Army cooperative study of pulmonary function. I. Clinical spirometry in normal men. Am J Med. 1961 Feb;30:243–258. doi: 10.1016/0002-9343(61)90096-1. [DOI] [PubMed] [Google Scholar]
  8. Lyons J. P., Clarke W. G., Hall A. M., Cotes J. E. Transfer factor (diffusing capacity) for the lung in simple pneumoconiosis of coal workers. Br Med J. 1967 Dec 30;4(5582):772–774. doi: 10.1136/bmj.4.5582.772. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. MILIC-EMILI J., MEAD J., TURNER J. M. TOPOGRAPHY OF ESOPHAGEAL PRESSURE AS A FUNCTION OF POSTURE IN MAN. J Appl Physiol. 1964 Mar;19:212–216. doi: 10.1152/jappl.1964.19.2.212. [DOI] [PubMed] [Google Scholar]
  10. Morgan W. K., Burgess D. B., Lapp N. L., Seaton A. Hyperinflation of the lungs in coal miners. Thorax. 1971 Sep;26(5):585–590. doi: 10.1136/thx.26.5.585. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. NEEDHAM C. D., ROGAN M. C., McDONALD I. Normal standards for lung volumes, intrapulmonary gas-mixing, and maximum breathing capacity. Thorax. 1954 Dec;9(4):313–325. doi: 10.1136/thx.9.4.313. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Naeye R. L., Laqueur W. A. Chronic cor pulmonale. Its pathogenesis in Appalachian bituminous coal workers. Arch Pathol. 1970 Dec;90(6):487–493. [PubMed] [Google Scholar]
  13. O'Shea J., Lapp N. L., Russakoff A. D., Reger R., Morgan W. K. Determination of lung volumes from chest films. Thorax. 1970 Sep;25(5):544–549. doi: 10.1136/thx.25.5.544. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Ryder R., Lyons J. P., Campbell H., Gough J. Emphysema in coal workers' pneumoconiosis. Br Med J. 1970 Aug 29;3(5721):481–487. doi: 10.1136/bmj.3.5721.481. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. SARTORELLI E., BARALDI V., GRIECO A., ZEDDA S. LA CAPACIT'A DI DIFFUSIONE POLMONARE DEI GAS NEI SILICOTICI. RICERCHE CON UN METODO ALL'OSSIDO DI CARBONIO. Med Lav. 1963 Mar;54:191–200. [PubMed] [Google Scholar]
  16. Schlueter D. P., Immekus J., Stead W. W. Relationship between maximal inspiratory pressure and total lung capacity (coefficient of retraction) in normal subjects and in patients with emphysema, asthma, and diffuse pulmonary infiltration. Am Rev Respir Dis. 1967 Oct;96(4):656–665. doi: 10.1164/arrd.1967.96.4.656. [DOI] [PubMed] [Google Scholar]
  17. Seaton A., Lapp N. L., Chang C. H. Lung perfusion scanning in coal workers pneumoconiosis. Am Rev Respir Dis. 1971 Mar;103(3):338–349. doi: 10.1164/arrd.1971.103.3.338. [DOI] [PubMed] [Google Scholar]

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