Diab Kh M, Daikhes N A, Pashchinina O A, Siraeva A P, Kuznetsov A O
Research Clinical Centre of Otorhinolaryngology, Federal Medico-Biological Agency, Moscow, Russia, 123182.
Vestn Otorinolaringol. 2016;81(3):54-56. doi: 10.17116/otorino201681354-56.
The objective of the present study was to develop the non-damaging method for the insertion of a standard electrode for cochlear ossification with a view to improving the results of hearing and speech rehabilitation of the patients presenting with grade IV sensorineural impairment of hearing. Twenty preparations of the cadaveric temporal bone were used to investigate topographic and anatomical relationships in the main structures of the middle and internal ears, viz. the second cochlear coil, vestibulum and its windows, processus cochleaformis, spiral lamina, and modiolus. The optimal method for the insertion of a standard electrode into the spiral canal of the cochlea after the removal of the ossified structures is proposed. The optimal site for constructing the second colostomy is determined that allows the spiral plate and modiolus to be maximally preserved. The proposed method was employed to treat 11 patients with grade IV sensorineural impairment of hearing and more than 5 mm ossification of the basal cochlear coil. With this method, it proved possible to insert the maximum number of electrodes into the cochlear spiral canal and thereby to obtain excellent results of hearing and speech rehabilitation in the patients with the ossified cochlea.
本研究的目的是开发一种用于为耳蜗骨化插入标准电极的无损方法，以期改善患有IV级感音神经性听力障碍患者的听力和言语康复效果。使用20个尸体颞骨标本研究中耳和内耳主要结构中的地形和解剖关系，即第二耳蜗线圈、前庭及其窗、蜗形突、螺旋板和蜗轴。提出了在去除骨化结构后将标准电极插入耳蜗螺旋管的最佳方法。确定了构建第二造瘘口的最佳位置，该位置可最大程度地保留螺旋板和蜗轴。采用该方法治疗了11例IV级感音神经性听力障碍且基底耳蜗线圈骨化超过5mm的患者。通过这种方法，已证明能够将最多数量的电极插入耳蜗螺旋管，从而在耳蜗骨化患者中获得优异的听力和言语康复效果。
