Effect of obstructive sleep apnea on asthma control

Abstract

Aim: To assess relationship between obstructive sleep apnea (OSA) risk and uncontrolled asthma. Methods: Asthma control test (ACT) and Berlin Questionnaire (BQ) was performed on subjects with asthma who had regular inhaler use with appropriate technique and did not have an exacerbation in the last 8 weeks. Demographic and clinical characteristics and OSA-risk of subjects were compared between controlled and uncontrolled asthmatics. Association between asthma control and OSA risk was assessed. Results: Asthmatics aged 44.5 ± 11.5 years (male/female=37/100) were included in the study. Asthma was under control (ACT ≥20) in 77 (56.2%) and was uncontrolled (ACT Conclusion: The findings of the study reveal that obstructive sleep apnea is a determinant of asthma control independent of smoking, reflux and rhinitis underlying the importance of evaluation of asthmatics with uncontrolled disease in terms of OSA risk.