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目的 :探讨纯音听阈正常的耳鸣患者扩展高频气导听阈的变化。方法 :对 4 8例纯音听阈正常的耳鸣患者作扩展高频气导听阈测试 ,并根据年龄≤ 2 5岁 (14例 ) ,2 6～ 35岁 (18例 ) ,36～ 4 5岁 (16例 )分成 3个年龄组。同时以 30例正常听力、无耳鸣的青年作为正常对照组 ,分析 4组扩展高频气导听阈与耳鸣的关系。结果 :3个年龄组患侧各频率扩展高频听阈均数与自身健侧比较 ,且与正常对照组相比差异均有统计学意义 (P <0 .0 1) ;各年龄组患侧扩展高频听阈与 3个年龄组健侧相同频率听阈比较 ,差异有统计学意义 (P <0 .0 1) ,除≤2 5岁组与 2 6～ 35岁组相比差异无统计学意义 (P >0 .0 5 )外 ,≤ 2 5岁组与正常组在 10 .0kHz,12 .0kHz和 14 .0kHz差异亦无无统计学意义 (P >0 .0 5 )。结论 :纯音听阈正常的耳鸣患者的扩展高频气导听阈并不一定正常 ,耳鸣可能是内耳早期病变的症状之一 ,但是 ,对于年龄在 30岁左右及更年长者 ,扩展高频听阈改变还可能与年龄有关。扩展高频听阈测试应作为一种常规听力检查
Objective: To explore the change of high-frequency air conduction threshold in tinnitus patients with normal pure tone hearing threshold. Methods: Forty-eight cases of tinnitus patients with normal pure tone hearing threshold were enrolled in this study. The patients were randomly divided into two groups according to age, 25 years old (14 cases), 26 to 35 years old (18 cases), 36 to 45 years old (16 cases) Example) Divided into 3 age groups. At the same time, 30 cases of normal hearing, no tinnitus youth as a normal control group, analysis of four groups extended high-frequency air conduction threshold and tinnitus relationship. Results: Compared with the normal control group, the average frequency of high-frequency hearing thresholds at the affected side of the three age groups was significantly lower than that of the normal control group (P <0.01); the ipsilateral extension of each age group The difference between the high-frequency thresholds and the hearing thresholds of the same side of the three age groups was statistically significant (P <0.01), except for ≤2 5 years old group and 26 to 35 years old group had no statistical significance ( P> 0.05), there was no significant difference between the groups ≤25 years old and the normal group at 10 .0 kHz, 12.0 kHz and 14.0 kHz (P> 0.05). CONCLUSIONS: Tone thresholds for extended HF guided by tinnitus patients with normal pure tone hearing thresholds are not necessarily normal and tinnitus may be one of the early signs of disease in the inner ear. However, for patients aged 30 and older, extended HF hearing threshold changes It may also be age-related. Extended high-frequency hearing threshold test should be used as a routine hearing test