Chu Katie Mee Yee, Au Dennis Kin Kwok, Hui Yau, Chow Chun Kuen, Wei William Ignace
Division of Otorhinolaryngology, Department of Surgery, University of Hong Kong Medical Centre, Queen Mary Hospital, Hong Kong, People's Republic of China.
Acta Otolaryngol. 2005 Jul;125(7):718-24. doi: 10.1080/00016480410024640.
Subjects with cochlear ossification derived benefits in terms of speech performance similar to those of the non-ossified group. It is thus recommended that the insertion of short electrode arrays should be considered an alternative choice for patients with cochlear ossification.
Cochlear ossification has been recognized as a major obstacle to the full insertion of a multichannel cochlear implant electrode array. To alleviate the technical difficulty of placing a standard electrode array and the possibility of causing undesirable trauma to the cochlea, a newly designed electrode array with the same number of electrodes compressed into a shorter length has been made available. The aim of the present study was to examine the speech perception performance of patients implanted with the MED-EL C40+S compressed electrode array and to compare their results with those of matched groups implanted with the MED-EL C40+standard electrode array.
One pre-lingually and two post-lingually deaf subjects using short electrode arrays were matched with three groups of subjects using standard electrode arrays. The pre- and postoperative speech perception scores were evaluated.
All three subjects using compressed electrode arrays achieved speech perception scores comparable to those of matched subjects using standard electrode arrays. There was also a tendency for the subjects to show similar patterns of speech perception scores as a function of the difficulty of the tests.
患有耳蜗骨化的受试者在言语表现方面获得的益处与非骨化组相似。因此，建议对于患有耳蜗骨化的患者，可考虑将短电极阵列的植入作为一种替代选择。
耳蜗骨化已被认为是多通道人工耳蜗电极阵列完全植入的主要障碍。为了减轻放置标准电极阵列的技术难度以及对耳蜗造成不良创伤的可能性，一种新设计的电极阵列已面市，其电极数量相同但被压缩至更短的长度。本研究的目的是检查植入MED-EL C40+S压缩电极阵列的患者的言语感知表现，并将其结果与植入MED-EL C40+标准电极阵列的匹配组的结果进行比较。
一名使用短电极阵列的语前聋受试者和两名使用短电极阵列的语后聋受试者与三组使用标准电极阵列的受试者进行匹配。评估术前和术后的言语感知分数。
所有三名使用压缩电极阵列的受试者获得的言语感知分数与使用标准电极阵列的匹配受试者相当。受试者的言语感知分数也倾向于随着测试难度呈现相似的模式。
