单侧聋使用信号对传式助听器干预效果研究

目的 进行言语识别率测试和助听效果评估调查问卷(COSI问卷)初步评价信号对传式(contralateral routing of sound,CROS)助听器应用于单侧聋患者的助听效果.方法 20例单侧聋患者进行助听后效果评估,分别进行CROS助听器干预前后安静环境下和噪声环境下言语测试、噪声下言语识别速测表(Qui...

Effects of CROS Hearing Aid Intervention in Unilateral Deafness

Objective To evaluate the effects of contralateral routing of sound(CROS)hearing aid in patients with unilateral hearing loss by speech recognition and client oriented scale of improvement(COSI).Methods Speech recognition and Quick-SIN were evaluated in quiet and noise environment before and after CROS hearing aid intervention in 20 patients with unilateral deafness,and COSI after 6 weeks of hearing aid usage.Results In quiet environment and at signal-to-noise ratio(SNR)=5 dB and SNR=10 dB,speech recognition score in patients wearing CROS was significantly higher than that in patients without CROS(P<0.001)but showed no significant difference when SNR was 0 dB(P=0.242).SNR loss with and without CROS was significantly different in 12 patients(P<0.001)and not so in the rest 8 patients(P=0.095).At 6 weeks follow-up,77% of the patients had a final ability score≥4,basically consistent with subjectively reported improvement.CROS hearing aid significantly improved communication comfort in most patients in specific situations.Conclusion Patients with unilateral deafness can benefit significantly from using CROS hearing aid in quiet environment.In noise,the benefits increase as the signal-to-noise ratio increases.