Abstract：
OBJECTIVE: Determine whether adult cochlear implant users with radiographic superior semicircular canal dehiscence experience clinically significant differences in audiological outcomes when compared to cochlear implant users with normal temporal bone anatomy.
METHODS: Retrospective, single institution review. Adult, post-lingual deaf patients implanted between 2010 and 2020. Inclusion criteria included age 18 years or older, available preoperative computed tomography imaging, and preoperative and postoperative AzBio audiological data for at least 6 months of cochlear implant use. Preoperative and postoperative AzBio Sentence Test scores were compared between patients with normal temporal bone anatomy and those with radiographic superior semicircular canal dehiscence or near dehiscence.
RESULTS: 110 patients met inclusion criteria. Mean AzBio score for normal temporal bone anatomy group improved from 35.2 % (SD 28.2) preoperatively to 70.3 % (SD 25.7) postoperatively, an improvement of 35.1 % (SD 28.6). Mean AzBio score for near dehiscent temporal bone anatomy group improved from 26.6 % (SD 28.9) preoperatively to 64.5 % (SD 30.6) postoperatively, an improvement of 37.9 % (SD 27.9). Mean AzBio score for dehiscent temporal bone anatomy group improved from 26.3 % (SD 20.4) preoperatively to 65.1 % (SD 27.6) postoperatively, an improvement of 38.7 % (SD 26.9). Utilizing the one-way analysis of variance test, there was no significant difference in audiologic outcomes between the three groups.
CONCLUSIONS: Patients with complete or near complete radiographic superior canal dehiscence at the time of cochlear implantation achieve similar improvements in speech perception scores compared to normal anatomy adult cochlear implant users.
METHODS: Retrospective, single institution review. Adult, post-lingual deaf patients implanted between 2010 and 2020. Inclusion criteria included age 18 years or older, available preoperative computed tomography imaging, and preoperative and postoperative AzBio audiological data for at least 6 months of cochlear implant use. Preoperative and postoperative AzBio Sentence Test scores were compared between patients with normal temporal bone anatomy and those with radiographic superior semicircular canal dehiscence or near dehiscence.
RESULTS: 110 patients met inclusion criteria. Mean AzBio score for normal temporal bone anatomy group improved from 35.2 % (SD 28.2) preoperatively to 70.3 % (SD 25.7) postoperatively, an improvement of 35.1 % (SD 28.6). Mean AzBio score for near dehiscent temporal bone anatomy group improved from 26.6 % (SD 28.9) preoperatively to 64.5 % (SD 30.6) postoperatively, an improvement of 37.9 % (SD 27.9). Mean AzBio score for dehiscent temporal bone anatomy group improved from 26.3 % (SD 20.4) preoperatively to 65.1 % (SD 27.6) postoperatively, an improvement of 38.7 % (SD 26.9). Utilizing the one-way analysis of variance test, there was no significant difference in audiologic outcomes between the three groups.
CONCLUSIONS: Patients with complete or near complete radiographic superior canal dehiscence at the time of cochlear implantation achieve similar improvements in speech perception scores compared to normal anatomy adult cochlear implant users.
摘要：
目的：确定与颞骨解剖正常的人工耳蜗使用者相比，放射学上半规管裂开的成人人工耳蜗使用者在听力学结果方面是否有临床上的显着差异。
方法：回顾性，单一机构审查。成人,2010年至2020年期间植入的语后聋人患者。纳入标准包括18岁或以上，可用的术前计算机断层扫描成像，以及至少6个月使用人工耳蜗植入物的术前和术后AzBio听力学数据。比较了颞骨解剖结构正常的患者和影像学上半规管裂开或接近裂开的患者的术前和术后AzBioSentenceTest评分。
结果：110例患者符合纳入标准。正常颞骨解剖组的平均AzBio评分从术前的35.2%(SD28.2)提高到术后的70.3%(SD25.7),改善35.1%（SD28.6）。颞骨近裂开解剖组的平均AzBio评分从术前的26.6%(SD28.9)提高到术后的64.5%(SD30.6),改善37.9%（SD27.9）。断裂颞骨解剖组的平均AzBio评分从术前的26.3％（SD20.4）提高到术后的65.1％（SD27.6），改善38.7%（SD26.9）。利用方差检验的单向分析，三组之间的听力学结果无显著差异.
结论：与正常解剖学成人人工耳蜗使用者相比，在人工耳蜗植入时具有完全或接近完全的影像学上管裂开的患者在言语感知评分方面取得了相似的改善。
方法：回顾性，单一机构审查。成人,2010年至2020年期间植入的语后聋人患者。纳入标准包括18岁或以上，可用的术前计算机断层扫描成像，以及至少6个月使用人工耳蜗植入物的术前和术后AzBio听力学数据。比较了颞骨解剖结构正常的患者和影像学上半规管裂开或接近裂开的患者的术前和术后AzBioSentenceTest评分。
结果：110例患者符合纳入标准。正常颞骨解剖组的平均AzBio评分从术前的35.2%(SD28.2)提高到术后的70.3%(SD25.7),改善35.1%（SD28.6）。颞骨近裂开解剖组的平均AzBio评分从术前的26.6%(SD28.9)提高到术后的64.5%(SD30.6),改善37.9%（SD27.9）。断裂颞骨解剖组的平均AzBio评分从术前的26.3％（SD20.4）提高到术后的65.1％（SD27.6），改善38.7%（SD26.9）。利用方差检验的单向分析，三组之间的听力学结果无显著差异.
结论：与正常解剖学成人人工耳蜗使用者相比，在人工耳蜗植入时具有完全或接近完全的影像学上管裂开的患者在言语感知评分方面取得了相似的改善。
