Significance of Occupational Asthma for Clinical Asthma
Abstract:The investigation of occupational asthma has made it possible to classify asthma due to known extrinsic agents in such a way as to be relevant to clinical asthma in general, whether or not it is regarded as extrinsic or cryptogenic (intrinsic). Thus, we have patterns of asthmatic reaction which can be described as immediate or non-immediate with its various patterns, and as:
(A) (1) extrinsic atopic immediate asthma
(2) extrinsic non-atopic immediate asthma
(3) combined forms of 1 and 2 are also possible
(B) (1) extrinsic non-atopic asthma
(a) 1 to 5 hour
(b) 5 to 8 hour
(c) nocturnal and recurrent
(C) Combined forms of immediate and non-immediate are common.
A full classification of individual patients in these respects arising from the history, skin and other tests, and the responses to inhaled bronchodilators, cromolyn sodium and corticosteroids is very desirable for attempts at most effective management. The incorporation of peak flow measurements in such analyses is not only necessary but has much to commend it in other respects.
Document Type: Research Article
Affiliations: Professor Emeritus, University of London
Publication date: 1984-12-01
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