Mancini P, Viccaro M, Dincer H, Covelli E, Attanasio G, Panebianco V, Ionescu Maddalena A, Filipo R
Department of Sensory Organs, University Sapienza, Rome, Italy.
Audiol Neurootol. 2013;18(4):214-22. doi: 10.1159/000351294. Epub 2013 Jun 8.
This study was designed to investigate the indication and advantages of contralateral implantation after postimplant meningitis (piM). Speech perception assessment, most comfortable levels and high-resolution computer tomography were used to monitor cochlear fibrosis/ossification and clinical changes in outcomes in 5 children affected by meningitis after a variable-time post-cochlear implantation. Ipsilateral ossification was found in 3 children, 1 of whom developed delayed contralateral ossification. These children were implanted on the contralateral side as they all showed deterioration of hearing performance. Results from the present paper and literature analysis suggest that, (1) piM can induce ipsilateral and contralateral ossification, (2) meningitis-induced cochlear ossification is more prone to develop in the presence of a normal cochlear structure and (3) contralateral implantation after piM has proven to be effective in restoring performance when a full electrode insertion is accomplished.
本研究旨在调查植入后脑膜炎（piM）后对侧植入的适应症和优势。对5名人工耳蜗植入后不同时间发生脑膜炎的儿童，采用言语感知评估、最舒适响度级和高分辨率计算机断层扫描来监测耳蜗纤维化/骨化情况以及结果的临床变化。3名儿童发现同侧骨化，其中1名出现延迟对侧骨化。由于这些儿童听力表现均恶化，故对其进行了对侧植入。本文结果及文献分析表明，（1）piM可诱发同侧和对侧骨化，（2）脑膜炎诱发的耳蜗骨化在耳蜗结构正常时更易发生，（3）piM后进行对侧植入在实现完全电极插入时已被证明可有效恢复听力。
