[Clinical value of psychoacoustic characteristics in patients with idiopathic tinnitus].

Objective:To analyze the relationship between psychological parameters and clinical severity score in patients with idiopathic tinnitus, and clarify the value of psychoacoustic testing in the severity of tinnitus and evaluation of curative effect.Method:A total of 165 patients with idiopathic tinnitus were collected. All patients received conventional audiological and psychoacoustic tests. Psychoacoustic tests include pitch matching (PM), loudness matching(LM), minimal masking levels (MMLs) and residual suppression(RI). Tinnitus handicap inventory (THI) and tinnitus evaluation questionnaire(TEQ) were used to evaluate the severity of tinnitus. SPSS 18.0 was used to analyze the relationship between the severity of tinnitus and psychosocial parameters by univariate analysis and multivariate Logistic regression analysis. Changes of patients psychological parameters were analyzed after five weeks of tinnitustherapy.Result:①Results of univariate analysis showed that there were significant difference with THI score: types of sound and loudness matching sensory level(LMSL) (P<0.05). There were also a significant correlations with TEQ score: the duration of tinnitus, tinnitus pitch matching(PM2) and loudness matching hearing level(LMHL)(P<0.05).②Multivariate analysis showed that PM2 and LMSL had significant correlation with THI(P<0.05), while patients with a single sound were less severe: with the increasing of LMSL, the severity of tinnitus was aggravated. There was also a significant correlation between LMHL and TEQ scores(P<0.05), and the greater the LMHL value, the more severe the tinnitus.③The statistically significant indicators are: LMSL, MMLs, MMLs difference, Feldman curve(P<0.05).Conclusion:The clinical severity of tinnitus is correlated with some psychological parameters of tinnitus. Tinnitus psychoacoustic tests help to assess the clinical severity of tinnitus.