• 2024 (Vol.38)
  • 1990 (Vol.4)
  • 1989 (Vol.3)
  • 1988 (Vol.2)
  • 1987 (Vol.1)

Difficulties of Cochlear implantation in malformations of the inner ear

© 2023 N. T. Tunyan, E. V. Bychkova

St. Petersburg State University, Department of Otorhinolaryngology and Ophthalmology 199106 St. Petersburg, 21st line of V.I., h. 8a, Russia
Audiology City Center for children in St. Petersburg 194356 St. Petersburg, Esenin st., h. 26 building 4, Russia

Received 07 Jun 2023

According to various authors, 20% of children with sensorineural hearing loss or deafness, anomalies in the structure of the temporal bones are determined according to the results of computed tomography. Cochlear implantation in the presence of cochleovestibular malformations is associated with a number of difficulties. These include the peculiarities of cochleostomy and placing of the electrode inside the cochlea, the risk of damage to the facial nerve due to its abnormal location, intraoperative liquorrhea, which can lead to the development of bacterial meningitis in the postoperative period, as well as the risk of penetration of the electrode into the internal auditory canal. In this research, we present our method of performing cochlear implantation in case of a malformation in the development of the inner ear (common cavity). The method expands the possibilities of cochlear implantation for e auditory perception in patients with this pathology.

Key words: cochlear implantation, inner ear malformations, common cavity, cochleostomy

DOI: 10.31857/S0235009223040091  EDN: QJZMAM

Cite: Tunyan N. T., Bychkova E. V. Trudnosti kokhlearnoi implantatsii pri porokakh razvitiya vnutrennego ukha [Difficulties of cochlear implantation in malformations of the inner ear]. Sensornye sistemy [Sensory systems]. 2023. V. 37(4). P. 363–368 (in Russian). doi: 10.31857/S0235009223040091

References:

  • Kuzovkov V.E., Lilenko A.S., Sugarova S.B., Tanaschishina V.A., Kalyapin D.D., Luppov D.S. Faktory riska stimulyatsii litsevogo nerva u pol’zovatelyakh kokhlearnykh implantov: nash opyt [Risk factors for facial nerve stimulation in cochlear implant users: our experience]. Rossiiskaya otorinolaringologiya [Russian Otorhinolaryngology]. 2022. Т. 5 (120). Р. 116–121 (in Russian). https://doi.org/10.18692/1810-4800-2022-5-116-121
  • Aljazeeri I.A., Khurayzi T., Al-Amro M., Alzhrani F., Alsanosi A. Evaluation of computed tomography parameters in patients with facial nerve stimulation post-cochlear implantation. Eur Arch Otorhinolaryngology. 2021. V. 278 (10). P. 3789–3794. https://doi.org/10.1007/s00405-020-06486-7
  • Jackler R.K., A. De La Cruz. The large vestibular aqueduct syndrome. Laryngoscope. 1989. V. 99 (10). P. 1238–1243.
  • Jackler R.K., Luxford W.M., House W.F. Congenital malformations of the inner ear: a classification based on embryogenesis. Laryngoscope. 1987. V. 97 (1). P. 1–14.
  • Morsli H., Tuorto F., Choo D. et al. Otxl and Otx2 activities are required for the normal development of the mouse inner ear. Development. 1999. P. 2335–2343. https://pubmed.ncbi.nlm.nih.gov/10225993/
  • Papsin B.C. Cochlear implantation in children with anomalous cochleovestibular anatomy. Laryngoscope. 2005. V. 115 (1 Pt. 2 Suppl 106). P. 1–26. https://doi.org/10.1097/00005537-200501001-00001
  • Park A., Kou B., Hotaling A. Clinical course of pediatric congenital inner ear malformations. Laryngoscope. 2000. P. 1715–1719.
  • Rah Y.C., Yoon Y.S., Chang M.Y., Lee J.Y., Suh M.W., Lee J.H. Facial nerve stimulation in the narrow bony cochlear nerve canal after cochlear implantation. Laryngoscope. 2016. V. 126 (6). P. 1433–1439. https://doi.org/10.1002/ lary.25655
  • Sennaroglu L., Saatci I. A new classification for cochleovestibular malformations. Laryngoscope. 2002. V. 112 (12). P. 2230–2241.
  • Tucci D., Telian S., Zimmerman-Philips S. Cochlear implantation in patients with cochlear malformations. Arch Otolaryngol Head Neck Surg. 1995. P. 833–838.