Intracochlear electrode insertion of cochlear implant: a scoping review
DOI:
https://doi.org/10.18203/issn.2454-5929.ijohns20251527Keywords:
Cochlear implant, Electrode array, Scala tympani, Electrode insertionAbstract
Cochlear implant currently shows remarkable speech understanding performance despite use of non-optimized coding strategies for transmission of tonal information. Certain features of cochlear implant electrode arrays enable the preservation of intracochlear structures when the devices are inserted into the scala tympani. The standard location for insertion of electrode of cochlear implant is into the scala tympani. The failure of insertion of the electrode into scala tympani has been seen in clinical practice. Minimal or no insertion trauma, deep insertion to the apex of the scala tympani is possible using recently developed flexible long straight electrodes. Misplacement of cochlear implant electrode array is considered as a major complication during cochlear implantation. If there is any malformed cochlea, it needs to be diagnosed, and the right electrodes should be selected for each individual cochlea. The aim of this review article is to discuss on the current knowledge about the intracochlear electrode insertion of cochlear implant.
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Swain SK, Das A, Sahu MC, Das R. Neonatal hearing screening: Our experiences at a tertiary care teaching hospital of eastern India. Pediatria Polska. 2017;92(6):711-5. DOI: https://doi.org/10.1016/j.pepo.2017.08.002
Swain SK. Current criteria for selecting cochlear implant in deaf patients: A review. Int J Adv Med. 2022;9:50-5. DOI: https://doi.org/10.18203/2349-3933.ijam20214881
Hartl RM, Greene NT. Measurement and mitigation of Intracochlear pressure transients during Cochlear implant electrode insertion. Otol Neurotol. 2022;43(2):174-82. DOI: https://doi.org/10.1097/MAO.0000000000003401
O'Connell BP, Hunter JB, Wanna GB. The importance of electrode location in cochlear implantation. Laryngos Investig Otolaryngol. 2016;1(6):169-74. DOI: https://doi.org/10.1002/lio2.42
Swain SK. Cochlear deformities and its implication in cochlear implantation: a review. Int J Res Med Sci. 2022;10(10):2339-45. DOI: https://doi.org/10.18203/2320-6012.ijrms20222547
Cruickshanks KJ, Tweed TS, Wiley TL, Klein BE, Klein R, Chappell R, et al. The 5-year incidence and progression of hearing loss: the epidemiology of hearing loss study. Arch Otolaryngol Head Neck Surg. 2003;129(10):1041-6. DOI: https://doi.org/10.1001/archotol.129.10.1041
Raine C. Cochlear implants in the UK: awareness and utilisation. Cochlear Implants Int Suppl. 2013;14:32-7. DOI: https://doi.org/10.1179/1467010013Z.00000000077
Marlowe AL, Chinnici JE, Rivas A, Niparko JK, Francis HW. Revision cochlear implant surgery in children: the Johns Hopkins experience. Otol Neurotol. 2010;31(1):74-82. DOI: https://doi.org/10.1097/MAO.0b013e3181c29fad
Swain SK. Cochlear implant and tinnitus: A review. Int J Otorhinolaryngol Head Neck Surg. 2021;7(12):1960-4. DOI: https://doi.org/10.18203/issn.2454-5929.ijohns20214698
Ishiyama A, Risi F, Boyd P. Potential insertion complications with cochlear implant electrodes. Cochlear Impl Int. 2020;21(4):206-19. DOI: https://doi.org/10.1080/14670100.2020.1730066
Adunka O, Kiefer J, Unkelbach MH, Radeloff A, Gstoettner W. Evaluating cochlear implant trauma to the scala vestibuli. Clin Otolaryngol. 2005;30:121-7. DOI: https://doi.org/10.1111/j.1365-2273.2004.00935.x
Boyer E, Karkas A, Attye A, Lefournier V, Escude B, Schmerber S. Scalar localization by cone-beam computed tomography of coch lear implant carriers: a comparative study between straight and periomodiolar precurved electrode arrays. Otol Neurotol. 2015;36:422-9. DOI: https://doi.org/10.1097/MAO.0000000000000705
Wanna GB, Noble JH, Carlson ML, Gifford RH, Dietrich MS, Haynes DS, et al. Impact of electrode design and surgical approach on scalar location and cochlear implant outcomes. The Laryngosc. 2014;124(6):1-7. DOI: https://doi.org/10.1002/lary.24728
Wanna GB, Noble JH, Gifford RH, Dietrich MS, Sweeney AD, Zhang D, et al. Impact of intrascalar electrode location, electrode type, and angular insertion depth on residual hearing in cochlear implant patients: preliminary results. Otol Neurotol. 2015;36(8):1343-8. DOI: https://doi.org/10.1097/MAO.0000000000000829
Radeloff A, Mack M, Baghi M, Gstoettner WK, Adunka OF. Variance of angular insertion depths in free-fitting and perimodiolar cochlear implant electrodes. Otol Neurotol. 2008;29:131-6. DOI: https://doi.org/10.1097/MAO.0b013e318157f0ea
Barriat S, Peigneux N, Duran U, Camby S, Lefebvre PP. The use of a robot to insert an electrode array of cochlear implants in the cochlea: a feasibility study and preliminary results. Audiol Neurotol. 2021;26(5):361-7. DOI: https://doi.org/10.1159/000513509
Daoudi H, Lahlou G, Torres R, Sterkers O, Lefeuvre V, Ferrary E, et al. Robot-assisted cochlear implant electrode array insertion in adults: a comparative study with manual insertion. Otol Neurotol. 2021;42(4):438-44. DOI: https://doi.org/10.1097/MAO.0000000000003002
Dhanasingh A, Jolly C. An overview of cochlear implant electrode array designs. Hearing Res. 2017;356:93-103.
Schraivogel S, Aebischer P, Wagner F, Weder S, Mantokoudis G, Caversaccio M, et al. Postoperative impedance-based estimation of cochlear implant electrode insertion depth. Ear Hearing. 2023;44(6):1379-88. DOI: https://doi.org/10.1097/AUD.0000000000001379
Mittmann P, Mittmann M, Ernst A, Todt I. Intracochlear pressure changes due to 2 electrode types: an artificial model experiment. Otolaryngol Head Neck Surg. 2017;156(4):712-6. DOI: https://doi.org/10.1177/0194599816684104
Aebischer P, Mantokoudis G, Weder S, Anschuetz L, Caversaccio M, Wimmer W. In-vitro study of speed and alignment angle in cochlear implant electrode array insertions. IEEE transact Biomedical Engin. 2021;69(1):129-37. DOI: https://doi.org/10.1109/TBME.2021.3088232
Swain SK. Delayed facial nerve paralysis following tympanomastoid surgery. Ann Indian Acad Otorhinolaryngol Head Neck Surg. 2021;5(2):52-6. DOI: https://doi.org/10.4103/aiao.aiao_10_21
Swain SK, Acharya S, Shajahan N. Late Facial Nerve Paralysis Following Tympanomastoid Surgery: Our Experiences at a Tertiary Care Teaching Hospital of Eastern India. Saudi J Otorhinolaryngol Head Neck Surg. 2021;23(4):144-7. DOI: https://doi.org/10.4103/sjoh.sjoh_30_21
Roland JT Jr, Huang TC, Fischman AJ: Cochlear implant electrode history, choices and insertion technique, in Waltzman SB, Roland JT Jr (eds): Cochlear Implants. New York, Thieme, 2006: 110-125.
Hochmair I, Hochmair E, Nopp P, Waller M, Jolly C. Deep electrode insertion and sound coding in cochlear implants. Hearing Res. 2015; 322:14-23. DOI: https://doi.org/10.1016/j.heares.2014.10.006
Shin TJ, Totten DJ, Tucker BJ, Nelson RF. Cochlear implant electrode misplacement: A case series and contemporary review. Otol Neurotol. 2022;43(5):547-58.
Torres R, Hochet B, Daoudi H, Carré F, Mosnier I, Sterkers O, et al. Atraumatic insertion of a cochlear implant pre-curved electrode array by a robot-automated alignment with the coiling direction of the scala tympani. Audiol Neurotol. 2022;27(2):148-55. DOI: https://doi.org/10.1159/000517398
Dutrieux N, Quatre R, Péan V, Schmerber S. Correlation between cochlear length, insertion angle, and tonotopic mismatch for MED-EL FLEX28 electrode arrays. Otol & Neurotol. 2022;43(1):48-55. DOI: https://doi.org/10.1097/MAO.0000000000003337
Wackym PA, Firszt JB, Gaggl W, Runge‐Samuelson CL, Reeder RM, Raulie JC. Electrophysiologic effects of placing cochlear implant electrodes in a perimodiolar position in young children. The Laryngos. 2004;114(1):71-6. DOI: https://doi.org/10.1097/00005537-200401000-00012
Schuster D, Kratchman LB, Labadie RF. Otol Neurotol. 2015;36(4):657-61. DOI: https://doi.org/10.1097/MAO.0000000000000573
Dhanasingh A, Jolly C. An overview of cochlear implant electrode array designs. Hearing Res. 2017;356:93-103. DOI: https://doi.org/10.1016/j.heares.2017.10.005
Roland JT. A model for cochlear implant electrode insertion and force evaluation: results with a new electrode design and insertion technique. Laryngos. 2022;115:1325-39. DOI: https://doi.org/10.1097/01.mlg.0000167993.05007.35
Swain SK. Vertigo following cochlear implantation: A review. Int J Res Med Sci. 2022;10(2):572-7. DOI: https://doi.org/10.18203/2320-6012.ijrms20220310
Dirr F, Hempel JM, Krause E, Müller J, Berghaus A, Ertl-Wagner B, et al. Value of routine plain X-ray position checks after cochlear implantation. Otol Neurotol. 2013;34(9):1666-9. DOI: https://doi.org/10.1097/MAO.0b013e3182a09cc3
Swain SK. Hybrid cochlear implant: a scoping review. Int J Otorhinolaryngol Head Neck Surg. 2025;11(1):95-100. DOI: https://doi.org/10.18203/issn.2454-5929.ijohns20250127
Carlson ML, Driscoll CL, Gifford RH, Tombers NM, Hughes-Borst BJ, Neff BA, Beatty CW. Implications of minimizing trauma during conventional cochlear implantation. Otol Neurotol. 2011;32(6):962-8. DOI: https://doi.org/10.1097/MAO.0b013e3182204526
Shin TJ, Totten DJ, Tucker BJ, Nelson RF. Cochlear implant electrode misplacement: A case series and contemporary review. Otol Neurotol. 2022;43(5):547-58. DOI: https://doi.org/10.1097/MAO.0000000000003503
Swain SK. Current practices of canal wall up versus canal wall down mastoidectomy: a review. International J Res Med Sci. 2024;12(8):3117. DOI: https://doi.org/10.18203/2320-6012.ijrms20242254
Eshraghi AA, Yang NW, Balkany TJ. Comparative study of cochlear damage with three perimodiolar electrode designs. Laryngoscope. 2003;113(3):415-9. DOI: https://doi.org/10.1097/00005537-200303000-00005
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