Psychoacoustic and electrophysiologic auditory neural encoding in school-aged children with mild to moderate sensorineural hearing loss | ||||
| Zagazig University Medical Journal | ||||
| Volume 30, Issue 6, September 2024, Page 2392-2406 PDF (1.03 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/zumj.2024.293709.3418 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Ahmed Mohamed El-Sayed Khater1; Ola Abdallah Ibraheem 2; Fatma Ahmed Salem Eljetlawi  3; Dina Mamdouh Zein Elabdein4
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| 1Professor & head of Audio-Vestibular Medicine, E.N.T. Department, Faculty of Medicine - Zagazig University | ||||
| 2Professor of Audio-Vestibular Medicine, E.N.T. Department, Faculty of Medicine - Zagazig University | ||||
| 3(3) (M.B., B.C.H), Faculty of Medicine-Misurata University-Libya | ||||
| 4Lecturer of Audio-Vestibular Medicine, E.N.T. Department, Faculty of Medicine - Zagazig University | ||||
| Abstract | ||||
| Background: Sensorineural hearing loss (SNHL) in children could impact speech processing along different levels of the auditory pathway; subcortical and cortical. The most frequently used psychoacoustic tests for temporal resolution and ordering evaluation are Gaps-In-Noise (GIN) and Pitch Pattern Sequence (PPS) tests. Moreover, speech-evoked auditory brainstem response (speech-ABR) represents an electrophysiologic test of brainstem speech processing. Aim: to study the impact of mild to moderate SNHL on speech neural encoding in school-aged children, using psychoacoustic (GIN and PPS) and electrophysiological (speech-ABR) tests and to estimate the accuracy of the psychoacoustic and electrophysiological tests in the diagnosis of temporal processing deficit. Methods: This observational, case-control study involved 30 school-aged children who were classified into; control group of normal-hearing children and study group of 20 children with mild to moderate SNHL. They were subjected to history-data reporting, basic audiological testing, and both psychoacoustic and electrophysiologic evaluation of the temporal auditory processing. Results: In comparison to the control group, there were significantly higher approximate threshold (APT) measure of GIN test in the moderate SNHL subgroups, lower total correct score measure of GIN test at a lower (mild) degree of SNHL, lower PPS scores as the hearing threshold increased above normal, and longer speech-ABR latency in the moderate SNHL subgroup. All the examined measures revealed a high accuracy with the APT measure of the GIN test showing the highest accuracy (92%). Conclusions: The psychoacoustic and electrophysiologic evaluation provided evidence of temporal auditory processing impairment in children with SNHL. | ||||
| Keywords | ||||
| Children; Sensorineural hearing loss; speech-evoked auditory brainstem response; Gaps-In-Noise test; Pitch Pattern Sequence test | ||||
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