Lessons learned in delayed identification of a misplaced electrode array in the vestibule  

作　　者：Huey Ting Diong Yuhan Wong Shermaine Png Yeow Seng Raymond Ngo 

机构地区：[1]Department of Audiology,Ng Teng Fong General Hospital,1 Jurong East Street 21,Singapore,609606,Singapore [2]Manchester Centre for Audiology and Deafness,Division of Psychology,Communication and Human Neuroscience,The University of Manchester,Oxford Road,Manchester,M139PL,United Kingdom [3]Department of Audiology and Speech Pathology,School of Health Sciences,The University of Melbourne,550 Swanston Street,Victoria,3010,Australia [4]Department of Ear,Nose and Throat–Head and Neck Surgery,Ng Teng Fong General Hospital,1 Jurong East Street 21,Singapore,609606,Singapore [5]Department of Otolaryngology–Head and Neck Surgery,National University Hospital,5 Lower Kent Ridge Rd,Singapore,119074,Singapore

出　　处：《Journal of Otology》2024年第4期241-246,共6页中华耳科学杂志（英文版）

摘　　要：To report a case of cochlear implantation with a misplaced electrode array in the vestibule and the causes for the delay in identification.A 23-year-old male with left single-sided deafness underwent cochlear implantation.The intraoperative assessment did not reveal any major red flags of electrode array misplacement.He did not display any vestibular symptoms postoperatively but showed poor speech performance,even though the aided tone audiometry revealed good sound detection thresholds.High-resolution computed tomography(HRCT)showed that the entire perimodiolar electrode array was situated within the vestibule,and a revision surgery was conducted.Retrospective analysis of the neural response telemetry(NRT)revealed subtle differences in responses between the misplaced and correctly placed electrode arrays.Unlike previously reported cases,the patient did not display vestibular symptoms despite the misplacement of the electrode in the vestibule due to existing weakness in otolithic function.Further investigation is warranted when a motivated patient with normal inner ear anatomy does not show benefit with the cochlear implant post-operatively.

关 键 词：Cochlear implantation Electrode misplacement VESTIBULE Poor CI outcome Neural response telemetry 

分 类 号：R764.9[医药卫生—耳鼻咽喉科]