Effect of Endonasal Dilator on Nasal Airflow and Sleep Test Index on Sleep Apnea Patients
- Author:
Tae Young JANG
1
;
Young Hyo KIM
Author Information
- Publication Type:Original Article
- Keywords: Obstructive sleep apnea; Nasal cavity; Hypersomnolence
- MeSH: Disorders of Excessive Somnolence; Follow-Up Studies; Humans; Nasal Cavity; Oxygen; Polysomnography; Sleep Apnea Syndromes; Sleep Apnea, Obstructive; Snoring; Supine Position
- From:Journal of Rhinology 2019;26(1):8-15
- CountryRepublic of Korea
- Language:English
- Abstract: BACKGROUND AND OBJECTIVES: We aimed to evaluate effects of endonasal dilators (END) on sleep quality in patients with obstructive sleep apnea (OSA) by improving nasal airflow. MATERIALS AND METHODS: In 13 patients with OSA, changes of total nasal volume (TNV) and minimal cross-sectional area (MCA) before and after END use were evaluated. The change in peak nasal inspiratory flow (PNIF) was also measured. Subjects completed Epworth Sleepiness Scale questionnaire before and 2 weeks after END use. Finally, changes in apnea-hypopnea index (AHI), respiratory distress index (RDI), oxygen desaturation index (ODI), sleep time, sleep position and loudness of snoring (in decibels) were obtained by repetitive portable polysomnography. RESULTS: After END use, TNV (11.4±3.1 cm3 to 19.4±5.7 cm3) and MCA (0.7±0.2 cm2 to 0.9±0.1 cm2) increased significantly (p=0.001). PNIF also increased significantly after END (147.3±39.5 to 194.6±57.6 liter/min, p=0.001). Among 11 patients undergoing 2-week follow-up, 7 reported improvement in daytime sleepiness. Although AHI, RDI and ODI showed no statistically significant change before and after END (p>0.05), the proportion of subjects sleeping in the supine position increased from 38.0 to 44.5%. CONCLUSION: END may be an effective adjunctive tool for patients with OSA with the potential to improve nasal airflow and daytime sleepiness.
