Psychoacoustic and Electrophysiologic Auditory Neural Encoding in School-aged Children with Mild to Moderate Sensorineural Hearing Loss.

Autor: El-Sayed Khater, Ahmed Mohamed, Ibraheem, Ola Abdallah, Salem Eljetlawi, Fatma Ahmed, Zein Elabdein, Dina Mamdouh
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Zdroj: Zagazig University Medical Journal; Sep2024, Vol. 30 Issue 6, p2392-2406, 15p
Abstrakt: 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index