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[The evaluation of hearing aid effect in presbycusis]
1Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Central Hosptial,Institute of Otorhinolaryngology,Tianjin,300192,China.
Abstract:
Objective:To evaluate the effect of hearing aid in presbycusis. Method:Using the method of international outcome inventory for hearing aids(IOI-HA)and medium acoustic intensity(65 dBSPL) word recognition score(WRS), to evaluate the effect of hearing aid in moderate and severe presbycusis. Result:After the hearing aid of moderate presbycusis, The improved value of monosyllabic words and recognition rate in quite and noise statement(SNR=5) were 31.15%, 23.21%, 44.11%.However, improved values in severe presbycusis were 37.51%, 48.47%,50.17%, before and after hearing aid, the difference of the improved average value was statistically significant(P <0.05); Both the moderate and severe presbycusis were satisfacted with hearing aid.The IO-HA scores of moderate and severe presbycusis ranged from 15 to 34.The difference of IOIHA score of moderate and severe presbycusis had no statistical significance(P >0.05); moderate and severe presbycusis with high satisfaction with HA of quiet statement,and low satisfaction of monosyllabic words listening, and the degree of satisfaction was higher in patients with moderate to severe hearing loss in noise statement.Conclusion:Speech audiometry is an important method to assess the effect of hearing aid; IOI-HA is a timeconsuming short, subjective method.The combine of multiple evaluations have guiding significance to debugging of hearing aid expected effect and hearing aid device.
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