pulmonary disorders
Byssinosis
Introduction
Byssinosis is a form of Reactive airways dysfunction syndrome (RADS) and irritant-induced asthma characterized by bronchoconstriction that occurs in cotton, flax, and hemp workers. Evidence suggests the etiologic agent is bacterial endotoxin. Symptoms include chest tightness and dyspnea that worsen on the first day of the work week and subside as the week progresses. Diagnosis is based on history and pulmonary function test findings. Chronic exposure in textile workers leads to chronic lung disease that has characteristics of both asthma and chronic obstructive pulmonary disease (COPD). Treatment includes avoidance of exposure and use of asthma drugs. (See also Overview of Environmental and Occupational Pulmonary Diseases .) 