Causes, diagnosis and treatment of occupational asthma

Occupational asthma is usually characterized by airway hyperresponsiveness, airway obstruction, and airway inflammation that usually result from exposure to specific irritants in the workplace and is not usually associated with any evidence of exacerbation outside the workplace. Occupational asthma can be associated with complicated long-term outcomes because affected patients are not usually aware of the hazards of the condition. Therefore, applying adequate diagnostic and management approaches is essential to enhance the outcomes among high-risk workers. In the present literature review, we have discussed the causes, diagnosis, and management of occupational asthma based on the evidence obtained from the current studies in the literature. Our findings indicated the presence of various environmental triggers that can lead to the development of asthma in the workplace, including HMW and LMW compounds. The diagnosis of asthma is based on obtaining a thorough personal and clinical history from the affected patient. However, such approaches have been reported to have low specificity rates, and therefore, the diagnosis should be established by other measures as lung function tests. The management of asthma is hugely dependent on the clinical phenotypes of occupational asthma. Nevertheless, applying adequate interventions can significantly enhance the outcomes in the affected patients, in addition to the other measures that have been adequately discussed in the manuscript.