Abstract：
OBJECTIVE: To identify audiological and demographic variables that predict speech recognition abilities in patients with bilateral microtia who underwent Bonebridge (BB) implantation.
METHODS: Fifty patients with bilateral microtia and bilateral conductive hearing loss (CHL) who underwent BB implantation were included. Demographic data, preoperative hearing aid use experience, and audiological outcomes (including pure-tone hearing threshold, sound field hearing threshold [SFHT], and speech recognition ability) for each participant were obtained. The Chinese-Mandarin Speech Test Materials were used to test speech recognition ability. The word recognition score (WRS) of disyllabic words at 65 dB SPL signals was measured before and after BB implantation in quiet and noisy conditions.
RESULTS: The mean preoperative WRS under quiet and noisy conditions was 10.44 ± 12.73% and 5.90 ± 8.76%, which was significantly improved to 86.38 ± 9.03% and 80.70 ± 11.34%, respectively, following BB fitting. Multiple linear regression analysis revealed that lower preoperative SFHT suggested higher preoperative WRS under both quiet and noisy conditions. Higher age at implantation predicted higher preoperative WRS under quiet conditions. Furthermore, patients with more preoperative hearing aid experience and lower postoperative SFHT were more likely to have higher postoperative WRS under both quiet and noisy testing conditions.
CONCLUSIONS: This study represents the first attempt to identify predictors of preoperative and postoperative speech recognition abilities in patients with bilateral microtia with BB implantation. These findings emphasize that early hearing intervention before implantation surgery, combined with appropriate postoperative fitting, contributes to optimal benefits in terms of postoperative speech recognition ability.
METHODS: Fifty patients with bilateral microtia and bilateral conductive hearing loss (CHL) who underwent BB implantation were included. Demographic data, preoperative hearing aid use experience, and audiological outcomes (including pure-tone hearing threshold, sound field hearing threshold [SFHT], and speech recognition ability) for each participant were obtained. The Chinese-Mandarin Speech Test Materials were used to test speech recognition ability. The word recognition score (WRS) of disyllabic words at 65 dB SPL signals was measured before and after BB implantation in quiet and noisy conditions.
RESULTS: The mean preoperative WRS under quiet and noisy conditions was 10.44 ± 12.73% and 5.90 ± 8.76%, which was significantly improved to 86.38 ± 9.03% and 80.70 ± 11.34%, respectively, following BB fitting. Multiple linear regression analysis revealed that lower preoperative SFHT suggested higher preoperative WRS under both quiet and noisy conditions. Higher age at implantation predicted higher preoperative WRS under quiet conditions. Furthermore, patients with more preoperative hearing aid experience and lower postoperative SFHT were more likely to have higher postoperative WRS under both quiet and noisy testing conditions.
CONCLUSIONS: This study represents the first attempt to identify predictors of preoperative and postoperative speech recognition abilities in patients with bilateral microtia with BB implantation. These findings emphasize that early hearing intervention before implantation surgery, combined with appropriate postoperative fitting, contributes to optimal benefits in terms of postoperative speech recognition ability.
摘要：
目的：确定可预测接受Bonebridge（BB）植入的双侧小耳畸形患者语音识别能力的听力学和人口统计学变量。
方法：纳入50例接受BB植入的双侧小耳畸形和双侧传导性听力损失（CHL）患者。人口统计数据,术前助听器使用经验,和听力学结果(包括纯音听力阈值，声场听阈[SFHT]，和语音识别能力)获得了每个参与者。使用汉语普通话语音测试材料来测试语音识别能力。在安静和嘈杂的条件下植入BB之前和之后，测量了65dBSPL信号下的双音节单词的单词识别得分（WRS）。
结果：安静和嘈杂条件下术前平均WRS为10.44±12.73％和5.90±8.76％，显着提高到86.38±9.03%和80.70±11.34%，分别,在BB拟合之后。多元线性回归分析显示，在安静和嘈杂的条件下，术前SFHT较低提示术前WRS较高。在安静条件下，较高的植入年龄预测较高的术前WRS。此外，在安静和嘈杂的测试条件下,术前助听器经验较多,术后SFHT较低的患者术后WRS较高.
结论：本研究首次尝试确定双侧小耳畸形患者的术前和术后言语识别能力的预测因子。这些发现强调，植入手术前的早期听力干预，结合适当的术后拟合，有助于在术后语音识别能力方面的最佳益处。
方法：纳入50例接受BB植入的双侧小耳畸形和双侧传导性听力损失（CHL）患者。人口统计数据,术前助听器使用经验,和听力学结果(包括纯音听力阈值，声场听阈[SFHT]，和语音识别能力)获得了每个参与者。使用汉语普通话语音测试材料来测试语音识别能力。在安静和嘈杂的条件下植入BB之前和之后，测量了65dBSPL信号下的双音节单词的单词识别得分（WRS）。
结果：安静和嘈杂条件下术前平均WRS为10.44±12.73％和5.90±8.76％，显着提高到86.38±9.03%和80.70±11.34%，分别,在BB拟合之后。多元线性回归分析显示，在安静和嘈杂的条件下，术前SFHT较低提示术前WRS较高。在安静条件下，较高的植入年龄预测较高的术前WRS。此外，在安静和嘈杂的测试条件下,术前助听器经验较多,术后SFHT较低的患者术后WRS较高.
结论：本研究首次尝试确定双侧小耳畸形患者的术前和术后言语识别能力的预测因子。这些发现强调，植入手术前的早期听力干预，结合适当的术后拟合，有助于在术后语音识别能力方面的最佳益处。
