James Adrian L, Osborn Heather A, Osman Homira, Papaioannou Vicky, Gordon Karen A
Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, Canada; Archie's Cochlear Implant Laboratory, The Hospital for Sick Children, Toronto, Canada; Department of Otolaryngology Head and Neck Surgery, Hospital for Sick Children, Toronto, Canada.
Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, Canada.
Int J Pediatr Otorhinolaryngol. 2020 Aug;135:110112. doi: 10.1016/j.ijporl.2020.110112. Epub 2020 May 14.
OBJECTIVE: The management of hearing loss due to auditory neuropathy spectrum disorder (ANSD) in neonates and infants is challenging because speech and language development prognosis cannot be directly inferred from early audiometric hearing thresholds. Consequently, appropriate intervention with hearing aids or cochlear implantation (CI) can be delayed. Our objective was to determine whether any features of patient history could be used to identify CI candidates with ANSD at an earlier age. METHOD: A database was maintained over 11 years to monitor cases of perinatal onset ANSD. Risk factors associated with the perinatal time period considered pertinent to hearing outcomes were assessed, including prematurity, birth weight, APGAR score, ototoxic drugs, and hyperbilirubinemia. Children with cochlear nerve aplasia and genetic mutations were excluded. Hearing outcome was determined according to mode of auditory rehabilitation beyond 30 months of age: A) no hearing device; B) hearing aid; C) CI. RESULTS: Of twenty-eight children with ANSD, nine (32%) had behavioural thresholds and language development sufficient to require no assistive device, 9 (32%) were fitted with hearing aids and 10 (36%) had CIs. The average age at CI (3.45 ± 2.07 years) was significantly older than the age at CI of other children in our program with prelingual hearing loss (2.05 ± 1.14 years; p = 0.01 Mann-Witney U Test). None of the putative risk factors for hearing loss reliably predicted the need for subsequent CI. CONCLUSION: The small sample size in this study is sufficient to confirm that clinical history alone does not reliably predict which young children with perinatal-onset ANSD will require CI. Consequently, timing for CI remains delayed in these children, potentially affecting speech and language outcome. The pathogenesis of perinatal-onset ANSD remains undetermined and novel means of assessment are required for prognostication in affected infants.
目的:新生儿和婴儿听觉神经病谱系障碍(ANSD)所致听力损失的管理具有挑战性,因为不能直接根据早期听力测定阈值推断言语和语言发育预后。因此,使用助听器或人工耳蜗植入(CI)的适当干预可能会延迟。我们的目的是确定患者病史的任何特征是否可用于在更早年龄识别患有ANSD的CI候选者。 方法:维持一个超过11年的数据库,以监测围产期发病的ANSD病例。评估与围产期相关且被认为与听力结果相关的危险因素,包括早产、出生体重、阿氏评分、耳毒性药物和高胆红素血症。排除耳蜗神经发育不全和基因突变的儿童。根据30个月龄以上的听觉康复模式确定听力结果:A)不使用听力设备;B)助听器;C)CI。 结果:28例患有ANSD的儿童中,9例(32%)行为阈值和语言发育良好,无需辅助设备,9例(32%)佩戴了助听器,10例(36%)接受了CI。CI的平均年龄(3.45±2.07岁)显著大于我们项目中其他有语前听力损失儿童的CI年龄(2.05±1.14岁;曼-惠特尼U检验,p = 0.01)。没有一个假定的听力损失危险因素能可靠地预测随后是否需要CI。 结论:本研究中的小样本量足以证实,仅凭临床病史不能可靠地预测哪些围产期发病的ANSD幼儿需要CI。因此,这些儿童接受CI的时间仍然延迟,可能影响言语和语言结果。围产期发病的ANSD的发病机制仍未确定,需要新的评估方法来对受影响婴儿进行预后判断。
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