Connell Sarah S, Balkany Thomas J, Hodges Annelle V, Telischi Fred F, Angeli Simon I, Eshraghi Adrien A
Department of Otolaryngology, University of Miami Ear Institute, Miami, Florida, USA.
Otol Neurotol. 2008 Feb;29(2):156-9. doi: 10.1097/MAO.0b013e318157f80b.
To review the occurrence of electrode migration after cochlear implantation.
Review of public database and retrospective case series.
Tertiary academic referral center, ambulatory.
Retrospective review of electrode migration reported in association with the US Food and Drug Administration Manufacturer and User Facility Device Experience database and a single-institution case series between 1996 and 2006.
Cochlear implantation.
Occurrence of electrode migration.
During the period 1996 to 2006, 151 reports of electrode migration were filed in the Manufacturer and User Facility Device Experience database. The most common association with migration was cochlear ossification, although 127 of 151 cases had no known association. During an equivalent period, 637 cochlear implant (CI) procedures were performed at the University of Miami. Of 580 primary CI operations, 2 cases of electrode migration were identified, both associated with reossification of a cochlea that was fully ossified at the first procedure.
Electrode migration is an underrecognized complication of CI surgery and may be associated with cochlear ossification. Electrode stabilization techniques may reduce the incidence of CI electrode migration in nonossified or incompletely ossified cases.
回顾人工耳蜗植入术后电极移位的发生情况。
回顾公共数据库及回顾性病例系列。
三级学术转诊中心，门诊。
回顾1996年至2006年间与美国食品药品监督管理局制造商和用户设施设备经验数据库相关报告以及一个单机构病例系列中报道的电极移位情况。
人工耳蜗植入。
电极移位的发生情况。
在1996年至2006年期间，制造商和用户设施设备经验数据库中提交了151份电极移位报告。与移位最常见的关联是耳蜗骨化，尽管151例中有127例无已知关联。在同一时期，迈阿密大学进行了637例人工耳蜗植入（CI）手术。在580例初次CI手术中，发现2例电极移位，均与首次手术时完全骨化的耳蜗再次骨化有关。
电极移位是CI手术中一种未被充分认识的并发症，可能与耳蜗骨化有关。电极固定技术可能会降低非骨化或不完全骨化病例中CI电极移位的发生率。
