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Background and Objectives:Nasal patency may be considered to have two aspects, the resistance to airflow and the sensation of airflow. Although the sensation of nasal airflow has rgreat importance in clinical practice. However, there are only a few studies that assess the sensation of nasal airflow in patients complaining of nasal obstruction. The aim of this study is to compare the airflow sensitivity of the nose in chronic sinusitis patients with normal controls and to determine the relationship betwen the airflow sensitivity and the radiologic staging of sinusitis, the presence of polyps, and the status of turbinate mucosa. Materials and Method:Al patients had bilateral chronic and middle turbinate mucosa by endoscopic examination. We measured threshold velocities at five diferent sites of each nasal cavity by an apparatus delivering a pulsing jet of air at varying velocities. Results:The threshold velocity of nasal airflow at all test sites were higher in sinusitis patients than in normal subjects. There were no significant diferences in nasal airflow sensitivity betwen radiologic staging groups, whereas there were significant correlation betwen the airflow sensitivity in Conclusion:The results suggest that decreased sensation of nasal airflow may contribute to the sensation of nasal obstruction in patients with chronic sinusitis. (Korean J Otolaryngol 2002;45:354-8)