Airways disease presenting as restrictive impairment: A variant in asthma, a defining feature in world trade center lung disorder

摘要

In our study of patients referred for polysomnogram testing, we found that excessive daytime sleepiness, or hypersomnolence, was more common in patients with sarcoidosis compared with control subjects.1 As we did not measure fatigue, we were not positioned to comment on the relationship between fatigue and sleepiness in our cohort. We agree, though, that these are distinct clinical conditions. Even as they may coexist or have overlapping features, distinguishing between fatigue and excessive daytime sleepiness is clinically relevant. While treatment with stimulants may be beneficial in both, patients with fatigue also warrant an evaluation for comorbidities, which may be targeted for other primary interventions.