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近年来,用助听器帮助重听和耳聋患者恢复实用听力已受到很大重视,但对感觉神经性聋患者来说,采用通常的听力检测和选配助听器仍有不少问题。因此,在选配助听器前对患者进行全面的听力学检测(听阈、不适阈、舒适域、听反射阈等)以了解其残余听力的特征有重要意义。本文报道采用传统的听力计和声阻抗计对48例17～58岁、病程0.5～30年的患者的75耳感觉神经性聋进行上述项目检测,并以15例21～35岁的健康人耳作对照。方法是,刺激信号采用纯音频率500、1000、2000和3000Hz,先分别测出可听阈、舒适域的下界和上界及不适阈。再用阻抗计
In recent years, great attention has been paid to hearing hearing-impaired and deaf patients recovering practical hearing. However, hearing loss detection and matching hearing aids are still a problem for people with sensory deafness. Therefore, comprehensive audiological tests (hearing threshold, uncomfortable threshold, comfort zone, auditory reflex threshold, etc.) on patients before hearing aids are important to understand the characteristics of residual hearing. This article reports the use of conventional audiometer and acoustic impedance meter in 48 cases of 17 to 58 years old, duration of 0.5 to 30 years of patients with 75-ear sensory neuropathy deaf for the above test, and 15 cases of 21 to 35-year-old healthy ear As a control. The method is to use pure tone frequencies of 500, 1000, 2000 and 3000 Hz for the stimulus signals, and then the lower and upper bounds of the audible and comfort regions are respectively measured. Then use impedance meter