Leonardo Elías Ordóñez Ordóñez, Esther Sofia Angulo Martinez, Silvia Carolina Vanegas, Estefany Catherine Hernández, Eduardo Peroza Fuentes, Robert T Dwyer, Ana Claudia Martinho-Carvalho
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引用次数: 0
Abstract
Objectives: The purpose of the study was (1) to retrospectively analyze ECochG data and compare it with the current literature. (2) to explore the relationship between ECochG and post-op audiological assessments.
Methods: This retrospective study included all patients with intraoperative and postoperative ECochG measurements and postoperative audiologic testing. ECochG were performed during CI insertion regardless of the preoperative hearing status. Preoperative and postoperative assessments were extracted from the medical records.
Results: A total of 35 patients (42 ears) met the inclusion criteria. Intra-op ECochG response was measurable in 17 of 42 ears (40.5%). The mean peak amplitude found was 103.3 µvolts. The type of electrode array was not associated with the ECochG amplitude (p = .630). Post-op ECochG thresholds were significantly correlated with behavioral thresholds after a month of CI implantation (p < 0.05).
Conclusions: ECochG responses were measurable in individuals with mean preop pure tone thresholds of 66 dB HL at 250 Hz, 77 dB HL at 500 Hz, 84 dB HL at 1 kHz and 92 dB HL at 2kHz. The type of electrode was not associated with the ECochG peak nor with greater preservation of residual hearing. Post-op ECochG thresholds were significantly correlated with post-op thresholds.
目的：本研究的目的是：(1)回顾性分析ECochG数据，并与现有文献进行比较。(2)探讨ECochG与术后听力学评估的关系。方法：回顾性研究包括术中和术后ECochG测量和术后听力学测试的所有患者。无论术前听力状况如何，在CI插入期间进行ECochG。术前和术后评估从医疗记录中提取。结果：35例患者（42耳）符合纳入标准。42只耳中有17只（40.5%）可测量术中ECochG反应。平均峰值振幅为103.3µv。电极排列类型与ECochG振幅无关（p = 0.630）。术后ECochG阈值与CI植入1个月后的行为阈值显著相关（p < 0.05）。结论：ECochG反应在平均术前纯音阈值为250 Hz时66 dB HL， 500 Hz时77 dB HL， 1 kHz时84 dB HL和2kHz时92 dB HL的个体中是可测量的。电极的类型与ECochG峰值无关，也与残余听力的保存无关。术后ECochG阈值与术后阈值显著相关。
期刊介绍：
Cochlear Implants International was founded as an interdisciplinary, peer-reviewed journal in response to the growing number of publications in the field of cochlear implants. It was designed to meet a need to include scientific contributions from all the disciplines that are represented in cochlear implant teams: audiology, medicine and surgery, speech therapy and speech pathology, psychology, hearing therapy, radiology, pathology, engineering and acoustics, teaching, and communication. The aim was to found a truly interdisciplinary journal, representing the full breadth of the field of cochlear implantation.
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