Small airways disease in coal miners. A longitudinal study.

Details

• Personal Author:
  Hall DR ; Lapp, N. Leroy ; Reger, Robert ; Seaton A
• Description:
  Seventeen of an original cohort of 25 non-smoking coal miners with simple pneumoconiosis in the absence of large airway obstruction and six age-matched controls studied in 1969 are re-examined in 1973 for respiratory mechanics. Miners, when compared with controls, show a marked decline in maximal expiratory flow at mid-vital capacity without significant change in the one-second forced expiratory volume. In addition, nine miners show abnormal elevated closing capacity expressed as a percentage of total lung capacity (CC/TLC) percent, and four show abnormal closing volume as a percentage of vital capacity (CV/VC) percent. The presence of an elevated (CC/TLC) percent and (CV/VC) percent correlate mainly with the presence of hyperinflation as indicated by an elevated residual volume. [Description provided by NIOSH]
• Subjects:
  Coal Coal Mining Lung Mining Occupational Health Respiratory System Respiratory Tract Diseases Safety
• Keywords:
  NIOSH-Author; Hazards; Respiratory-system-disorders; Coal-mining; Mining-industry; Respiratory-functions; Lung-volume; Respiratory-airflow; Lung-fibrosis
• ISSN:
  0007-439X
• Document Type:
  Text
• Genre:
  Journal Article
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  11
• Issue:
  5
• NIOSHTIC Number:
  nn:00053944
• Citation:
  Bull Physio-Pathol Respir 1975 Oct; 11(5):863-877
• Federal Fiscal Year:
  1976
• NORA Priority Area:
  Pulmonary System Disorders
• Peer Reviewed:
  True
• Source Full Name:
  Bulletin de Physio-Pathologie Respiratoire
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
• Download URL:
  https://stacks.cdc.gov/view/cdc/241943/cdc_241943_DS1.pdf
• File Type:
  [PDF - 168.02 KB ]