Clinical feature analysis on 217 patients with subjective tinnitus

Objective To analysis the clinical feature and audiology feature of patients with subjective tinnitus,compare masking,screening effectiveness of various kinds tinnitus,and search for the individual treatment ways for subjective tinnitus.Methods 217 patients in our hospistor were performed pure tone test,DPOAE,tinnitus determination,and tinnitus masking including pitch matching,intensity matching,Feldmann masking curve,and residual inhibition test with TinniTestTM.Results The prevalence rate is higher in female (52％).Tinnitts occur to the left side more common (42％),followed by bilateral ears (30％) and the right side (28％).The urban population ( 77％ ) and mental worker ( 68％ ) were primary in patients.The patients with chronic tinnitus (duration＞ 1 year) counts for most proportion (46％).The most effective treatment was masking treatment for cases with high frequency tinnitus and low frequency tinnitus; the effective power is 71.6％ and 73.6％.The lowest effective treatment was masking treatment for cases with middle frequency tinnitus; the effective power is only 52.2％.The positive ratio of masking test for cases with type Ⅰ to type Ⅴ (Feldman Curve Type) decreased from 90％ to 10％ gradually.Conclusions The feature of cases with tinnitus had much more dependence on masking test and tinnitus frequency; it could be predictive factor for curative effect of tinnitus.Feldman curve type has large utilization value and directed significance on diagnosis and treatment for tinnitus.It is much more valuable for the selection of masking therapy; and is an important predicted factor for the effectiveness of masking therapy;and it is an important evidence for the selection of personal treatment. Key words: Subjective tinnitus;  Tinnitus feature;  Feldman curve;  Tinnitus masking