REZ-1型人工耳蜗成人语后聋植入者普通话声调识别分析

Tone recognition of REZ-1 multi-channel unilateral cochlear implants for profoundly postlingual deaf adults

目的评估REZ-1型人工耳蜗成人语后聋植入者的汉语言语识别和普通话声调识别水平，探讨其对汉语普通话声调识别特点及影响因素。方法采用中国聋儿康复研究中心《听觉、语言能力评估方法和标准》对2009年6至10月复旦大学附属眼耳鼻喉科医院耳鼻喉科的34例接受REZ．1型人工耳蜗成人语后聋植入者术耳进行术前及术后（开机1、2、3、6、12个月）韵母、声母、单音节词和声调识别能力的评估及统计学分析。结果34例患者开机12个月平均韵母、声母、单音节词和声调正确识别率分别为（82±8）％、（70±8）％、（76±10）％和（77±13）％，与术前（0）相比显著提高，差异有统计学意义（P〈0．01），且随着开机时间的增加识别率逐步提高。结论REZ-1型人工耳蜗成人语后聋植入者在安静环境下可以获得较好的汉语普通话声调识别效果，随着患者使用时间的增加，言语识别和声调识别能力均逐步改善。

Objective To assess the tone recognition of cochlear-implant subjects by a REZ-1 device. Methods Speech recognition experiments were conducted to measure the tone recognition with standard assessment table and standard testing program. A total of 34 postlingual hearing-impaired adults who were native speakers of Mandarin undergoing operations from June to October, 2009 were tested and scored both preoperatively and postoperatively （1, 2, 3, 6, 12 months post-implantation ）for speech recognition. Results All patient scores of speech recognition （ initials, finals, monosyllabic words ＆ tones） decreased gradually during the postoperative follow-up period. Preoperative speech recognition scores were all 0. And after a 12-month training, their average scores were increased significantly [ （70 ±8）%± （82 ± 8） % ]. Significant statistical differences existed between pre- and post-implantation in each test （P 〈 0. 01 ）. Conclusion REZ-1 cochlear implantation may improve the tone recognition of adults with severe- to-profound postlingual hearing loss in a quiet environment.