Evidence map›Paper›PMID 42745889›Full record

ArticleFrontiers in neuroscience2026

Influence of hearing in the non-implanted ear and age on long-term speech recognition benefit for adult cochlear implant users with asymmetric hearing loss.

Sylvia Mihailescu, Samantha P Scharf, Nicholas J Thompson, Margaret E Richter, Matthew M Dedmon, Amanda D Sloop, Kevin D Brown, Margaret T Dillon

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Article in Frontiers in neuroscience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Sylvia MihailescuDepartment of Otolaryngology-Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.
Samantha P ScharfDepartment of Otolaryngology-Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.
Nicholas J ThompsonDepartment of Otolaryngology-Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.
Margaret E RichterDepartment of Otolaryngology-Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.
Matthew M DedmonDepartment of Otolaryngology-Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.
Amanda D SloopDepartment of Otolaryngology-Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.
Kevin D BrownDepartment of Otolaryngology-Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.
Margaret T DillonDepartment of Otolaryngology-Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Most cochlear implant (CI) users with normal hearing or mild to moderately-severe hearing loss in the non-implanted ear, known as asymmetric hearing loss (AHL), experience significant benefits in spatial hearing as compared to pre-operative abilities, though individual outcomes vary. This study analyzed the influence of the hearing in the non-implanted ear and age on long-term outcomes for 35 adult CI users with AHL. Unaided thresholds were measured behaviorally at annual post-activation visits and were used to calculate a pure-tone average (PTA; 0.5, 1, 2, 4 kHz). Sentence recognition in noise was assessed with the AzBio sentences in a 10-talker masker with the target presented from the front loudspeaker and the masker presented 90° toward the implanted ear, 90° towards the non-implanted ear, or co-located with the target. Spatial release from masking was calculated as the benefit in speech recognition when the masker was presented towards the implanted ear (SRMci) or the non-implanted ear (SRMcontra) as compared to the co-located configuration. Spatial release from masking did not change significantly after 1-year post-activation for SRMci and continued to significantly improve for SRMcontra. Hearing in the non-implanted ear significantly influenced SRMci. Age at surgery significantly influenced SRMcontra. Six (17%) participants experienced a PTA decline of ≥ 15 dB HL in the non-implanted ear, which negatively influenced spatial hearing. For those, performance generally improved with adjustments to the hearing aid fitting or after bilateral cochlear implantation. Long-term outcomes for adult CI users with AHL are significantly influenced by hearing in the non-implanted ear and age - though differentially across speech-in-noise configurations.

Indexed as

bimodalcochlear implantsingle-sided deafnessspatial hearingspatial release from masking (SRM)unilateral hearing loss (UHL)

Identifiers

PMID42745889
PMCPMC13574654

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.