Binaural squelch and head shadow effects in children with unilateral cochlear implants and contralateral hearing aids

Acta otorhinolaryngologica Italica : organo ufficiale della Società italiana di otorinolaringologia e chirurgia cervico-facciale
H Dincer D'AlessandroP Mancini

Abstract

The aim of this study was to investigate the amount of binaural squelch effect (BSE) and head shadow effect (HSE) in children who use unilateral cochlear implants (CI) and contralateral hearing aids (HA). The study group consisted of 19 CI recipient children who consistently wore a contralateral HA. Speech sounds were used to evaluate speech perception performance in noise. Testing was performed in three listening conditions: (1) bimodal listening with noise source on HA side; (2) CI only with noise source contralaterally (HA off); (3) CI only with noise source on the CI side. Statistical analysis revealed a significant difference between the three listening conditions and post hoc tests indicated significant differences for all pairwise comparisons (p < 0.001). The average BSE and HSE were 11.8% and 17.1% respectively. The majority of bimodal CI users showed BSE and HSE with significant speech perception improvement in the presence of noise.

Citations

Jun 10, 2019·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Hilal Dincer D'Alessandro, Patrizia Mancini
Nov 12, 2020·International Journal of Audiology·Patrizia ManciniDaniele De Seta
Jul 3, 2021·Journal of Clinical Medicine·Camron DaviesAdrien A Eshraghi

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Methods Mentioned

BETA
cochlear implant
cochlear implants

Software Mentioned

Statistical Package for Social Sciences ( SPSS )

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