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Cochlear implant surgery at 12 months of age or younger.

机译:年龄小于等于12个月的人工耳蜗植入手术。

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OBJECTIVES: Early presentation of congenitally deaf children for cochlear implantation is leading to surgery in younger candidates. The safety of cochlear implantation in children aged 12 months and younger is reviewed with radiologic assessment of mastoid bone anatomy and surgical outcome data. STUDY DESIGN: Analysis of case records and temporal bone computed tomography (CT) scans with description of surgical technique in infants. METHODS: Chart analysis of children aged 12 months or younger at cochlear implantation. Mastoid bone anatomy was compared with older children (mean age 2 years) using CT scans. RESULTS: Twenty-five infants received implants at 7 to 12 months of age because of meningitis (n = 4) or early detection of deafness (n = 21). Mastoid marrow content on CT scan was significantly greater in this age group (P < .001 Mann-Whitney rank sum test), but pneumatization was always adequate for safe identification of surgical landmarks. The smaller size of the mastoid bone was not restrictive. An extended postauricular approach was used in the first 11 cases and a 2.5 cm hair-line incision in the remainder. Ligature tie-down of the device was completed in all cases. No complications occurred. All are full-time implant users, except one with other neurologic sequelae of preoperative meningitis. CONCLUSIONS: In our experience, cochlear implant surgery is safe in children aged 7 to 12 months with appropriate anesthetic and postoperative support. The small incision technique is particularly suited to this age group. Ligature fixation of the device is considered advisable because of the increased risk of displacement from frequent falls when learning to walk.
机译:目标:先天性聋儿童耳蜗植入的早期介绍导致年轻候选人的手术。影像学评估乳突骨解剖结构和手术结局数据可评估12个月及以下儿童的人工耳蜗安全性。研究设计:分析病例记录和颞骨计算机断层扫描(CT)扫描,并描述婴儿手术技术。方法:对年龄在12个月以下的儿童进行人工耳蜗植入的图表分析。使用CT扫描将乳突骨解剖与年龄较大的儿童(平均年龄2岁)进行比较。结果:25名婴儿因脑膜炎(n = 4)或早期发现耳聋(n = 21)在7至12个月大时接受了植入。在这个年龄组中,CT扫描上的乳突骨髓含量明显更高(P <.001 Mann-Whitney秩和检验),但气化始终足以安全地识别手术标志。乳突骨的较小尺寸不是限制性的。前11例采用延长耳后入路,其余采用2.5 cm发际切口。在所有情况下均完成了设备的扎扎。没有并发症发生。除术前脑膜炎的其他神经系统后遗症外,所有患者均为专职种植者。结论:根据我们的经验,在适当的麻醉和术后支持下,7至12个月的儿童进行人工耳蜗植入是安全的。小切口技术特别适合该年龄组。由于在学习走路时因频繁跌倒而导致移位的风险增加,因此建议对设备进行结扎固定。

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