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Occupational asthma: current concepts in pathogenesis, diagnosis, and management
1Allergy and Immunology Service, Section of Pulmonary, Critical Care, Allergy and Immunologic Diseases, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA. dykewicz@wfubmc.edu
The Journal of Allergy and Clinical Immunology
|March 14, 2009
Summary
Occupational asthma (OA) affects adults and is categorized by sensitizers or irritants. Early diagnosis and removal from exposure are key for managing OA and improving patient prognosis.
Area of Science:
- Occupational medicine
- Pulmonology
- Immunology
Background:
- Occupational asthma (OA) constitutes a significant portion of adult-onset asthma.
- Current understanding better categorizes OA into types caused by sensitizing agents versus irritants, such as reactive airways dysfunction syndrome.
- Identifying the specific sensitizing agent (high-molecular-weight protein or low-molecular-weight chemical) is crucial for diagnosis and management.
Purpose of the Study:
- To review recent guidelines for diagnosing and managing occupational asthma.
- To discuss advancements in understanding OA pathogenesis, particularly from reactive chemical sensitizers.
- To evaluate the utility of diagnostic tests, including sputum analysis, for OA.
Main Methods:
- Review of recently published guidelines for occupational asthma diagnosis and management.
- Analysis of evidence defining the utility of diagnostic tests for OA.
- Examination of preventive and management strategies for OA.
- Consideration of risk factors, including potential genetic influences.
Main Results:
- Recent guidelines provide a stronger evidence basis for OA diagnosis and management recommendations.
- Understanding OA pathogenesis aids in developing improved diagnostic tests, despite challenges in testing for sensitization to certain agents.
- Sputum analysis in relation to occupational exposure shows utility in diagnosing OA.
Conclusions:
- Timely removal from exposure is critical for the best prognosis in patients with occupational asthma.
- Continued research is refining diagnostic approaches and understanding of OA.
- Effective management relies on accurate identification of the causative agent and appropriate interventions.
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