Assessment of nasal cycle by acoustic rhinometry and rhinomanometry
Huang, Z.L. Yeoh, K.H. Wang, D.Y. Ong, K.L. Goh, S.Y. Liew, H.L.
Huang, Z.L.
Ong, K.L.
Goh, S.Y.
Liew, H.L.
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Abstract
OBJECTIVE: We sought to investigate the pattern, duration, and amplitude of nasal cycle and its response to nasal decongestant. STUDY DESIGN AND SETTING: Ten adult volunteers attended 2 sessions (with and without nasal spray of 0.1% xylometazoline) for consecutive examinations by rhinomanometry and acoustic rhinometry every 10 minutes over 6 hours. RESULTS: A spontaneous fluctuation in nasal minimum cross-sectional area, volume, and nasal resistances (inspiration and expiration) could be observed in every consecutive measurement. A significant negative correlation (r = -0.33 to -0.70, P < 0.05) between both nasal passages was shown in 5 subjects by rhinomanometry and in 2 subjects by acoustic rhinometry but was not detectable after nasal spray with 0.1% xylometazoline. CONCLUSION: A spontaneous fluctuation in nasal patency can be documented every 10 minutes with irregular pattern, frequency, and amplitude. Classic nasal cycle is not a universal phenomenon, which can be abolished by the application of decongestant.
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Source Title
Otolaryngology - Head and Neck Surgery
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Series/Report No.
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Date
2003
DOI
10.1016/S0194-5998(03)00123-2
Type
Article