Semin Respir Crit Care Med 2023; 44(03): 378-384
DOI: 10.1055/s-0043-1764408
Review Article

Chronic Obstructive Pulmonary Disease and Work: The Continuing Narrative

David Fishwick
1   Centre for Occupational and Environmental Health, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
2   Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
,
Chris Barber
3   Department of Respiratory Medicine, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, United Kingdom
,
Ruth Wiggans
4   Department of Respiratory Medicine, North Manchester General Hospital and the University of Manchester, Manchester, United Kingdom
› Institutsangaben

Abstract

It has long been recognized that harmful inhaled workplace exposures can contribute to the development of chronic obstructive pulmonary disease (COPD). This article, intended for the clinician, summarizes some of this evidence and some areas of controversy. Current estimates based on pooled epidemiological analyses of population-based studies identify that approximately 14% of the burden of COPD (and 13% of the burden of chronic bronchitis) is attributable to such exposures. In addition to these approaches, various studies implicate specific exposures as contributing. Certain of these relating to cadmium, coal, and respirable crystalline silica are discussed in more detail. Despite this amassed evidence to date supporting associations between COPD and workplace exposures, there have been surprisingly few studies that have attempted to assess the attribution by experts of an occupational cause in cases of COPD. One study, using hypothetical cases of COPD, noted that while expert physicians were willing to make such an occupational link, this was only likely in cases with light smoking histories and a priori defined heavy occupational exposures. Relatively recent data relating to computed tomography (CT) scan appearances may give the clinician a further guide. Several studies from populations have now linked potentially harmful occupational exposures specifically with the presence of emphysema on CT scanning. It will be of interest to see if this finding, along with other clinical attributes of cases such as smoking and family histories, exclusion of asthma, genetic data, and the nature of workplace exposures, will increase the future diagnosis by clinicians of occupational COPD. In the interim, while better diagnostic approaches are developed, we suggest that consideration of an occupational cause is an important part of the clinical investigation of cases of COPD. Finally, we suggest that evidence-based workplace preventive strategies for occupational COPD should be informed by knowledge of which exposures are most important to reduce, and whether and when intervention to reduce exposure at an individual worker level is warranted.



Publikationsverlauf

Artikel online veröffentlicht:
17. April 2023

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