助听器学习功能和真耳分析调试效果对比研究

A Comparison between Trainable Hearing Aid Fitting and Audiologist Fitting

目的对助听器学习解析功能和验配师真耳分析调试的效果进行对比研究。方法选取20例双侧重度感音神经性听力损失,双耳(40耳)佩戴第三代学习功能助听器的患者,分别进行学习解析功能和真耳分析调试,助听器学习解析功能调试组为实验组,验配师真耳分析调试组为对照组。目标公式选用NAL-NL1,共2个周期,每个周期2周时间,每个周期结束后进行安静环境和65dB SPL白噪声的环境下言语识别阈(speech recognition thresh-old,SRT)测试,以及助听器效果缩略简表(Abbreviated profile of hearing aid benefit,APHAB)问卷填写。1个周期之后,实验组的用户和对照组的用户对调组别,重复上述过程。结果实验组安静环境和噪声环境下的SRT结果分别为58.8±9.dB SPL和63.3±8.3dB SPL,对照组安静环境和噪声环境下的SRT结果分别为54.9±9.dB SPL和59.7±8.4dB SPL,经统计学分析P<0.05(P为0.017和0.012),有统计学意义,对照组安静环境和噪声环境的SRT均低于实验组。APHAB问卷结果显示,就单项大声耐受力得分而言,实验组结果为341分,对照组结果为300分,有统计学意义,实验组舒适度更高。结论助听器初期佩戴者用真耳分析调试的方法来提高清晰度;长期佩戴者用助听器学习功能来提高舒适度。

Objective To compare trainable hearing aid fitting with audiologist fitting.Methods Twenty patients with bilateral severe sensorineural hearing loss(40 ears)and using bilateral hearing aids were enrolled in this study.Patients underwent one cycle(2 weeks)of fitting calibrated with Real Ear measurement(as control),and a cycle of trainable hearing aid analysis(the experiment phase),with the target formula selected for NAL-NL1.SRT under quiet as well as 65 dB SPL white noise environment and APHAB questionnaires were completed after each cycle.Results SRT results were 58.8±9.0 dB SPL and 63.3±8.3 dB SPL in quiet and noise environment,respectively for the experiment phase;and 54.9±9.4dB SPL and 59.7±8.4dB SPL,respectively,for the control(P<0.05,P=0.017 and 0.012).The APHAB questionnaire score was 341 for the experiment phase and 300 for the control group(P<0.05),indicating higher level of comfort for the experiment phase.Conclusion Early hearing aid users can improve clarity with real ear analysis,while long term wearers can use trainable hearing aids to improve comfort.