Lenarz T, Lesinski-Schiedat A, von der Haar-Heise S, Illg A, Bertram B, Battmer R D
Department of Otolaryngology, Medizinische Hochschule Hannover, Germany.
Ann Otol Rhinol Laryngol Suppl. 1999 Apr;177:44-9.
This paper examines reports on the selection criteria, the surgical procedure, and the postoperative performance for children under the age of 2 implanted with the CLARION Multi-Strategy Cochlear Implant (1.2 device). Eighteen children have been implanted since 1996 with a mean age at implantation of 18 months (range 11 to 23 months). All children were selected by means of a standardized preoperative diagnostic protocol. The surgical procedure used in older children was modified depending on the head and mastoid size, skull thickness, and recurrent otitis media. Auditory perception was tested prior to as well as 3, 6, 12, and 18 months following implantation by means of a standardized age-adapted test protocol. The electrode array was inserted without difficulty in all cases, with no complications to date. On average, auditory performance improved over time up to 18 months after implantation. Closed-set test scores increased by 25% to 55% in 18 months. Open-set test scores began to show improvement between 6 and 12 months postoperatively. Overall, our experience indicates that cochlear implantation in children under the age of 2 is relatively safe and reliable. The Clarion 1.2 device surgery can be performed without complications. Auditory performance results support the effectiveness of early implantation.
本文考察了关于植入CLARION多策略人工耳蜗（1.2型设备）的2岁以下儿童的选择标准、手术过程及术后表现的报告。自1996年以来，已有18名儿童接受了植入手术，植入时的平均年龄为18个月（范围为11至23个月）。所有儿童均通过标准化的术前诊断方案进行筛选。年龄较大儿童所采用的手术过程根据头部和乳突大小、颅骨厚度以及复发性中耳炎进行了调整。在植入前以及植入后3、6、12和18个月，通过标准化的适合年龄的测试方案对听觉感知进行测试。在所有病例中，电极阵列均顺利插入，至今未出现并发症。平均而言，植入后长达18个月，听觉表现随时间推移有所改善。在18个月内，闭集测试分数提高了25%至55%。开集测试分数在术后6至12个月开始显示出改善。总体而言，我们的经验表明，2岁以下儿童的人工耳蜗植入相对安全可靠。CLARION 1.2型设备手术可无并发症地进行。听觉表现结果支持早期植入的有效性。
