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目的:探讨双侧小耳畸形合并重度传导性听力损失患者分期耳廓再造-骨桥植入术后单侧及双侧骨导助听的疗效。方法:研究对象为2016年3月至2020年1月在北京协和医院手术治疗的32例双侧小耳畸形伴外耳道闭锁患者，其中男20例，女12例，平均年龄11.8岁。术前测试裸耳平均听阈及言语识别率，行颞骨高分辨CT评估乳突发育情况，制定个体化手术方案（分期耳廓再造及骨桥植入术）。术后骨桥开机时、开机后3、6、12、24个月，测试单侧骨桥助听的平均听阈及言语识别率（安静环境和信噪比5 dB噪声环境下的双音节词识别率）；植入骨桥至少3个月后，分别测试裸耳、单侧骨桥助听和双侧骨导助听（一侧骨桥+对侧ADHEAR）的平均听阈及言语识别率。采用国际助听器评估问卷和Glasgow儿童获益调查问卷评估患者术后主观获益情况。使用SPSS 21.0软件进行统计学处理。结果:32例患者中9例于耳廓再造术前植入骨桥，6例同期植入骨桥，17例于耳廓再造术后植入骨桥；32例均对侧佩戴ADHEAR。单侧骨桥及双侧骨导助听的平均纯音听阈均较裸耳明显改善，差异具有统计学意义（n t=22.15，n P0.05）。安静环境下单侧骨桥及双侧骨导助听均可显著提高患者的言语识别率（n t=6.50，n P0.05）；噪声环境下，双侧骨导助听显著优于单侧骨桥，差异有统计学意义（n P<0.05）。主观调查问卷显示单侧骨桥植入及双侧骨导助听均可获得满意效果。n 结论:对于双侧先天性小耳畸形伴外耳道闭锁同时合并重度传导性聋患者，单侧骨桥植入和一侧骨桥+对侧ADHEAR均可改善其纯音听阈和言语识别率，双侧骨导助听较单侧骨桥可进一步提高噪声下的言语识别率。“,”Objectives:To evaluate the therapeutic effects of unilateral/bilateral bone conduction hearing rehabilitation in patients with bilateral microtia accompanied with severe conductive hearing loss following staged auricle reconstruction and bonebridge implantation.Methods:Thirty-two patients, including 20 males and 12 females, with an average age of 11.8, who received surgical treatment in Peking Union Medical College Hospital (PUMCH) from March, 2016 to January, 2020 with bilateral microtia-atresia were included. Hearing thresholds, speech perception and high-resolution CT of the temporal bone were evaluated prior to surgery and individualized surgery plans (staged auricle reconstruction and bonebridge implantation) were made. Hearing thresholds and speech perception in quiet and noise (SNR = 5 dB) using unilateral Bonebridge were tested two weeks after the implantation surgery when the Bonebridge was activated and at 3n th, 6n th, 12n th month after activation. Hearing thresholds and speech perception were also tested at least three months after the activation of the Bonebridge under three conditions: unaided, unilateral Bonebridge, and bilateral bone conduction hearing devices (Bonebridge plus contralateral ADHEAR). The international hearing aid assessment questionnaire (IOI-HA) and Glasgow children's benefit questionnaire were used to evaluate the subjective benefits of the patients. SPSS 21.0 software was used for statistical analysis.n Results:Among these 32 patients, nine were conducted Bonebridge implantation surgery before auricle reconstruction, six were simultaneously with auricle reconstruction and 17 were implanted after auricle reconstruction surgery. Compared with unaided, the mean hearing thresholds (0.5, 1, 2, and 4 kHz) and speech perception following unilateral BCHD and bilateral BCHD attachment were improved significantly (n P<0.05 each). The speech perceptin in noise of bilateral BCHD was better than unilateral (n P<0.05 each). The modified questionnaire revealed high levels of patient satisfaction following use of both unilateral and bilateral devices.n Conclusions:Individulized surgical procedures involving auricle reconstruction and Bonebridge implantation are safe and effective for patients with bilateral microtia-atresia, solving both appearance and hearing problems. Speech perception in noise is better following bilateral BCHD than unilateral BCHD attachment.