振动声桥与软带BAHA在双侧中外耳畸形患者的效果比较

发布时间：2018-07-30 08:15

【摘要】：目的比较振动声桥(VSB)与软带BAHA(骨锚式助听器)对双侧先天性中外耳畸形患者听力改善的效果。方法通过2例自身对照患者,比较VSB与软带BAHA使用前后,纯音测听(声场)与安静和噪声下65d BSPL言语识别率。结果 2种方式均使患者获得明显的听力改善,在纯音测定(声场)中,气导听阈在1k Hz-8k Hz,VSB助听后达到正常水平(25d B),而软带BAHA助听在30-50d B之间,但在0.25k Hz与0.5k Hz,软带BAHA比VSB能进一步改善10-25d B。安静状态下,对单音节词和双音节词识别率,VSB比BAHA高7%-38%;但安静与噪声环境下句子识别率仅高2-10%。结论 VSB与BAHA都是双侧先天性中外耳畸形患者的有效听力解决方案。VSB在高频(1k Hz-8k Hz)助听效果较BAHA好,但低频(0.25k Hz与0.5k Hz)反之;安静状态下对单音节词和双音节词识别率VSB更好,而在安静和噪声下对句子识别率VSB比BAHA稍高。
[Abstract]:Objective to compare the effect of vibration bridge (VSB) and soft band BAHA (bone anchor hearing aid) on hearing improvement in patients with bilateral congenital ear malformation. Methods the speech recognition rates of pure tone audiometry (acoustic field) and quiet and noisy 65 d BSPL before and after VSB and soft band BAHA were compared in 2 cases of self-control patients. Results both of the two methods could significantly improve the hearing of the patients. In pure tone measurement (sound field), the air conduction hearing threshold reached the normal level after hearing aid at 1 k Hz-8k B), (25 d B),) and soft band BAHA hearing aid (30-50 dB). However, at 0.25kHz and 0.5kHz, the soft band BAHA can further improve 10-25dB compared with VSB. The recognition rate of monosyllabic and disyllabic words is 7- 38 higher than that of BAHA in quiet state, but the recognition rate is only 2-10% higher in quiet and noisy environment. Conclusion both VSB and BAHA are effective hearing solutions in patients with bilateral congenital Chinese and foreign ear malformations. VSB has better hearing aids at high frequency (1k Hz-8k Hz) than BAHA, but low frequency (0.25kHz and 0.5kHz), whereas VSB is better in recognition rate of monosyllabic words and dicyllabic words in quiet state. The rate of sentence recognition in quiet and noisy VSB is slightly higher than that in BAHA.
【作者单位】：解放军总医院耳鼻咽喉头颈外科解放军耳鼻咽喉研究所;
【基金】：国家973计划重大科学问题导向项目(2011CBA01000) 国家重大科学研究计划干细胞项目(2012CB967900) 解放军总医院专利转化基金项目(42411D19)联合资助
【分类号】：R764

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