Relationship between Electrically Evoked Compound Action Potential Thresholds and Auditory, Language, and Speech Progress after Cochlear Implant Surgery

Document Type : Original

Authors

1 Department of Ear, Nose and Throat, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.

2 Sinus and Surgical Endoscopic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.

3 Amir Alam Hospital, Tehran University of Medical Sciences, Tehran, Iran.

4 Department of Audiology, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran.

Abstract

Introduction:
Electrically evoked compound action potential (ECAP) is an objective auditory response that can be used in the programing of cochlear implants. The aims of this study were to monitor ECAP thresholds and auditory, language and speech progress for 6 months after cochlear implant surgery and to evaluate any relationship between them.
 
Materials and Methods:
Ten children with a mean age of 4.2 (±0.6) years and bilateral congenital and profound sensorineural hearing loss underwent cochlear implant surgery and post-operation auditory and speech training. The auditory, language, and speech abilities (Newsha level) and ECAP thresholds (for apical, medial and basal region of cochlea) were evaluated 1, 3 and 6 months after surgery.
                                                                                                                          
Results:
ECAP threshold showed no significant improvement in any of the evaluated areas in the 6 months after surgery (P>0.05); however, the Newsha level improved for all patients (P=0.00).
 
Conclusion:
There was no relationship between ECAP thresholds and auditory, language, and speech abilities (Newsha level) in the first 6 months after surgery. ECAP thresholds may be a poor indicator of improvement in auditory, language, and speech abilities, and depend on many factors.

Keywords

Main Subjects

References

  1. Telmesani LM, Said NM. Electrically evoked compound action potential (ECAP) in cochlear implant children: Changes in auditory nerve response in first year of cochlear implant use. Int J Pediatr Otorhinolaryngol. 2016;82:28–33.
  2. Bakhshinian VV. The current tendencies and prospects of the neural response telemetry in the rehabilitation of the patients after cochlear implantation. Vestn Otorinolaringol. 2014(2):21–5.
  3. Wang Z, Li W, Tian Y, Jiang X. The clinical application of objective hearing monitoring technology in cochlear implants. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2014; 28(7): 435–9.
  4. Christov F, Munder P, Berg L, Bagus H, Lang S, Arweiler-Harbeck D. ECAP analysis in cochlear implant patients as a function of patient's age and electrode-design. Eur Ann Otorhinolaryngol Head Neck Dis. 2016;133 Suppl 1:S1–3.
  5. Caldas FF, Cardoso CC, Barreto MA, Teixeira MS, Hilgenberg AM, Serra LS, et al. Analysis of electrically evoked compound action potential of the auditory nerve in children with bilateral cochlear implants. Braz J Otorhinolaryngol. 2016; 82(2):123–30.
  6. Jeddi Z, Jafari Z, Motasaddi Zarandy M, Kassani A. Aural rehabilitation in children with cochlear implants: a study of cognition, social communication, and motor skill development. Cochlear Implants Int. 2014;15(2):93–100.
  7. Jafari Z, Asad-Malayeri S. The psychometric properties of newsha developmental scale: an integrated test for persian speaking children. Iran J Pediatr. 2012;22(1):28–34.
  8. Poley M, Overmyer E, Craun P, Holcomb M, Reilly B, White D, et al. Does pediatric cochlear implant insertion technique affect intraoperative neural response telemetry thresholds? Int J Pediatr Otorhinolaryngol. 2015;79(9):1404–7.
  9. Tanamati LF, Bevilacqua MC, Costa OA. Longitudinal study of the ecap measured in children with cochlear implants. Braz J Otorhinolaryngol. 2009;75(1):90–6.
  10. Lai WK, Aksit M, Akdas F, Dillier N. Longitudinal behaviour of neural response telemetry (NRT) data and clinical implications. Int J Audiol. 2004;43(5):252–63.
  11. Telmesani LM, Said NM. Effect of cochlear implant electrode array design on auditory nerve and behavioral response in children. Int J Pediatr Otorhinolaryngol. 2015;79(5):660–5.
  12. Molisz A, Zarowski A, Vermeiren A, Theunen T, De Coninck L, Siebert J, et al. Postimplantation changes of electrophysiological parameters in patients with cochlear implants. Audiol Neurootol. 2015;20(4):222–8.
  13. Spivak L, Auerbach C, Vambutas A, Geshkovich S, Wexler L, Popecki B. Electrical compound action potentials recorded with automated neural response telemetry: threshold changes as a function of time and electrode position. Ear Hear. 2011;32(1):104–13.
  14. Hughes ML, Vander Werff KR, Brown CJ, Abbas PJ, Kelsay DM, Teagle HF, et al. A longitudinal study of electrode impedance, the electrically evoked compound action potential, and behavioral measures in nucleus 24 cochlear implant users. Ear Hear. 2001;22(6):471–86.
  15. Thai-Van H, Chanal JM, Coudert C, Veuillet E, Truy E, Collet L. Relationship between NRT measurements and behavioral levels in children with the Nucleus 24 cochlear implant may change over time: preliminary report. Int J Pediatr Otorhinolaryngol. 2001;58(2):153–62.
  16. Han S, Wang L, Zhang D, Peng K. Neural Response Telemetry Thresholds in Patients with Cochlear Nerve Canal Stenosis. Otolaryngol Head Neck Surg. 2015;153(3):447–51.
  17. Mittmann P, Rademacher G, Mutze S, Hassepass F, Ernst A, Todt I. Evaluation of the Relationship between the NRT-Ratio, Cochlear Anatomy, and Insertions Depth of Perimodiolar Cochlear Implant Electrodes. Biomed Res Int. 2015; 2015:706253.
  18. Muller A, Hocke T, Mir-Salim P. Intraoperative findings on ECAP-measurement: normal or special case? Int J Audiol. 2015;54(4):257–64.
  19. Bakhshinyan VV, Fedoseev VI, Tavartkiladze GA. The new technologies for the intraoperative registration of the electrically evoked compound action potentials of the acoustical nerve by means of the neural response telemetry method. Vestn Otorinolaringol. 2015;80(3):14–7.
  20. Ji F, Li JN, Liu K, Jiao QS, Sun L, Hong MD, et al. NRT test in auditory neuropathy patients with cochlear implants. Acta Otolaryngol. 2014; 134(9): 930–42.
  21. McKay CM, Smale N. The relation between ECAP measurements and the effect of rate on behavioral thresholds in cochlear implant users. Hear Res. 2017;346:62–70.

 

 

 

Iranian Journal of Otorhinolaryngology
Volume 30, Issue 4 - Serial Number 99
July and August 2018
Pages 185-188

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