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Audiology Research
Volume 15
Issue 4
10.3390/audiolres15040079
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Article

Cochlear Implants and the Aided Audiogram: A Retrospective Study Comparing Performance Across Device Manufacturers

by
Nicole Hope Capach
1,*,
Noam Zigdon
1,
Taylor A. Payne
1,
Jonathan D. Neukam
1,2,
Yeonjoo Choi
3,
Hong Ju Park
3,
William H. Shapiro
1 and
Mario A. Svirsky
1
1
Department of Otolaryngology Head and Neck Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA
2
Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA
3
Department of Otorhinolaryngology-Head and Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
*
Author to whom correspondence should be addressed.
Audiol. Res. 2025, 15(4), 79; https://doi.org/10.3390/audiolres15040079
Submission received: 30 April 2025 / Revised: 13 June 2025 / Accepted: 25 June 2025 / Published: 2 July 2025
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Abstract

Background/Objectives: We investigated: (1) differences in CI-aided thresholds and speech perception scores among cochlear implant manufacturers and (2) the relationship between CI-aided thresholds and speech perception. Methods: We analyzed exploratory data from NYU and a confirmatory data set of 120 CI-aided audiograms from the ASAN clinic. CI-aided soundfield evaluations were compared between manufacturers (Cochlear, Advanced Bionics, MED-EL) using 5- and 6-pure-tone average thresholds; percentage of patients with average thresholds above 35 dB HL; speech perception scores; and correlations between thresholds and speech perception. Results: Compared to Cochlear users, MED-EL and Advanced Bionics users had significantly higher (poorer) pure-tone averages (26.7 dB HL for Cochlear vs. 30.0 dB HL for AB and 34.6 dB HL for MED-EL at NYU; 29.0 dB HL for Cochlear vs. 36.5 dB HL for MED-EL at ASAN), and higher incidence of 5- or 6-PTAs above 35 dB HL (1.6% vs. 23.4%/47.1% at NYU; 11.2% vs. 60.0% at ASAN). Word and sentence scores were significantly higher for the Cochlear group when compared to the MED-EL group. Speech scores were higher for manufacturers that recommend the use of behaviorally-measured T-levels (Cochlear) rather than estimated T-levels (AB and MED-EL). Significant negative correlations existed between CI-aided thresholds and speech scores. Conclusions: Significant differences in CI-aided thresholds and speech perception were observed between manufacturers, potentially related to brand-specific T-level programming approaches.
Keywords: cochlear implants; aided audiograms; T-levels; electrical stimulation levels; cochlear implant programming; audiological evaluations; hearing outcomes cochlear implants; aided audiograms; T-levels; electrical stimulation levels; cochlear implant programming; audiological evaluations; hearing outcomes

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MDPI and ACS Style

Capach, N.H.; Zigdon, N.; Payne, T.A.; Neukam, J.D.; Choi, Y.; Park, H.J.; Shapiro, W.H.; Svirsky, M.A. Cochlear Implants and the Aided Audiogram: A Retrospective Study Comparing Performance Across Device Manufacturers. Audiol. Res. 2025, 15, 79. https://doi.org/10.3390/audiolres15040079

AMA Style

Capach NH, Zigdon N, Payne TA, Neukam JD, Choi Y, Park HJ, Shapiro WH, Svirsky MA. Cochlear Implants and the Aided Audiogram: A Retrospective Study Comparing Performance Across Device Manufacturers. Audiology Research. 2025; 15(4):79. https://doi.org/10.3390/audiolres15040079

Chicago/Turabian Style

Capach, Nicole Hope, Noam Zigdon, Taylor A. Payne, Jonathan D. Neukam, Yeonjoo Choi, Hong Ju Park, William H. Shapiro, and Mario A. Svirsky. 2025. "Cochlear Implants and the Aided Audiogram: A Retrospective Study Comparing Performance Across Device Manufacturers" Audiology Research 15, no. 4: 79. https://doi.org/10.3390/audiolres15040079

APA Style

Capach, N. H., Zigdon, N., Payne, T. A., Neukam, J. D., Choi, Y., Park, H. J., Shapiro, W. H., & Svirsky, M. A. (2025). Cochlear Implants and the Aided Audiogram: A Retrospective Study Comparing Performance Across Device Manufacturers. Audiology Research, 15(4), 79. https://doi.org/10.3390/audiolres15040079

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