Section: 
Science articles
Science articlesPossibilities of triphasic stimulation in patients with cochlear implants
A. V. Pashkov (1), (2), I. V. Naumova (1), K. I. Voevodina (2), D. S. Klyachko (3), M. T. Fatakhova (1), D. D. Kalyapin (3)
(1) Research Institute of Pediatrics and Children’s Health, Central Clinical Hospital, Russian Academy of Sciences, Moscow, 119333, Russia
(2) Central State Medical Academy of the Administrative Department of the President of the Russian Federation, Moscow, 121359, Russia
(3) Saint Petersburg Research Institute of Ear, Throat, Nose and Speech, Saint Petersburg, 190013, Russia
UDK: 616.283.1-089.843:616.28-009
DOI: https://doi.org/10.18692/1810-4800-2021-6-64-69
ABSTRACT
The rationale for the use of three-phase stimulation for programming the processor of the cochlear implantation system (CI) in patients with deafness is presented. To study the possibilities of using a new type of stimulation, we selected patients with deafness after cochlear implantation, in whom signs of facial nerve stimulation (FNS) were established in the postoperative period. All subjects were previously installed in the CI processor with individual listening maps based on traditional biphasic stimulation. The use of three-phase stimulation to prevent SOS phenomena is caused by the geometry of the electric current pulse, which allows to reduce the penetrating power of the charge in the tissues and eliminate the effect on the facial nerve, without resorting to reducing the levels of stimulation necessary to create a dynamic range of sound perception. Comparative data of the parameters and the results of audiological testing in 21 patients with symptoms of SLE with traditional (two-phase) and three-phase electrical impulses in the stimulation algorithm of the CI system are presented. The positive effect of three-phase stimulation has been established. The results of the study show a significant increase in sound perception indicators when switching to a three-phase stimulation algorithm.
Publication date:
27.12.2021
Keywords:
cochlear implantation, hearing and speech rehabilitation, sensorineural hearing loss, cochlear implantation processor tuning. For citation:
Pashkov A. V., Naumova I. V., Voevodina K. I., Klyachko D. S., Fatakhova M. T., Kalyapin D. D. Possibilities of triphasic stimulation in patients with cochlear implants. Rossiiskaya otorinolaringologiya. 2021;20(6):64-69. https://doi.org/10.18692/1810-4800-2021-6-64-69