The Characteristics of Nasal Cycle and Nasal Cavity Volume inLaryngectomees Using Acoustic Rhinometry.
- Author:
Hwan Jung ROH
1
;
Yoon Ju CHONG
;
Hyun Soo MOON
;
Byung Joo LEE
;
Soo Guen WANG
Author Information
1. Department of Otolaryngology, College of Medicine, Pusan National University, Pusan, Korea.
- Publication Type:Original Article
- Keywords:
Nasal cycle;
Laryngectomees;
Acoustic rhinometry
- MeSH:
Acoustics*;
Central Nervous System;
Humans;
Nasal Cavity*;
Rhinometry, Acoustic*
- From:Korean Journal of Otolaryngology - Head and Neck Surgery
1998;41(11):1431-1435
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND AND OBJECTIVES: The nasal cycle of laryngectomized patients has been thought to be far different from the normal subjects. This study was performed to evaluate the difference in the patterns and activities of nasal cycles, the total nasal cavity volume, and the degree of change in the nasal cavity volume between laryngectomees (LG) and normal controls. MATERIALS AND METHODS: Twentythree laryngectomized patients and twenty-three normal controls were studied. Acoustic rhinometry measurements were taken 3 times from each nostril at intervals of 30 minutes during 8 hrs. The total nasal cavity volume was measured from the first 7 cm of nostril. RESULTS: There were four types of nasal cycle patterns in both laryngectomees and controls: classical pattern in 6 (26.1%) LG and 5 (21.7%) controls, in concert pattern in 3 (13.1%) LG an 8 (34.8%) controls, mixed pattern in 4 (17.4%) LG and 3 (13.0%) controls, irregular pattern in 11 (47.8%) LG and 6 (26.1%) controls. In laryngectomees, the total nasal cavity volume was increased (p<0.01), and the degree of change in the ipsilateral volume was decreased compared to the controls (p<0.05). However, there was no significant change in the activity of nasal cycle compared to control (p>0.05). CONCLUSION: Although the afferent input from the airflow receptor in the nasal cavity may play a role in modulating the pattern of nasal cycle, we suggest that the central nervous system is more important than the feedback mechanism for regulation and control of nasal cycle.
