소위 무난청이명 환자에서 순음 및 연속주파수 자기청력검사(Be´ke`sy Audiometry) 소견: 이명 주파수와 청력도의 Dip 주파수와의 관계

Background and Objectives: Tinnitus is one of the most widespread disorder of the auditory system. Tinnitus frequency is usually similar to hearing loss frequency. However, there are few study about tinnitus frequency with normal hearing. The purpose of this study is to investigate the relation between tinnitus frequency and dip frequency of the pure tone and continuous frequency automatic recording audiogram (Bèkésy) in tinnitus patients with normal hearing. Materials and Methods: From May 2005 to Dec 2007, 35 tinnitus patients (48 ears) with normal hearing were encountered in our audiologic clinic. Pure tone and Bèkésy audiometry were performed. Results: Patients complained usually high tone pitch (66.7%). The correlation percentage between tinnitus frequency and dip frequency of pure tone audiogram is 74.3% (γ =0.60323) and that between tinnitus frequency and dip frequency of Bèkésy audiogram is 83.9% (γ =0.66867) in tinnitus patients with normal hearing. Conclusion: Tinnitus frequency is highly related to dip frequency in tinnitus patients with normal hearing. Bèkésy audiometer and additional high frequency audiometry should be more helpful in the tinnitus study. (J Clinical Otolaryngol 2008;19:36–42)