| 000 | 02552caa a2200265 4500 | ||
|---|---|---|---|
| 008 | 210629s9999 xx 000 0 und d | ||
| 022 | _a2186-361X | ||
| 100 | _aKondli Nagaraj Megha | ||
| 245 | 0 | _aNarrow-band chirp and tone burst auditory brainstem response as an early indicator of synaptopathy in industrial workers exposed to occupational noise | |
| 260 | _c2019 | ||
| 270 | _aAll India Institute of Speech and Hearing, Manasagangothri | ||
| 300 | _a179-186 | ||
| 490 | _vVolume 8 Issue 3 | ||
| 520 | _aThis study aims at characterizing and comparing the findings of auditory brainstem response (ABR) using narrow-band chirp (NB-chirp) and tone burst (TB) for both latency and amplitude parameters among those exposed to occupational noise and to determine which among the two serves as a better indicator of noise-induced cochlear neuropathy. Forty adult males in the age range of 20-35 years were considered, wherein 20 of them were exposed to noise > 80 dB (A) for 8 hours per day constituting Noise-exposed group; and Control group consisted of 20 individuals without occupational noise exposure. ABR was recorded using NB-chirp and TB for four frequencies at 80 dB nHL through Etymotic Research – 3A (ER-3A) Insert phones using Interacoustics Eclipse EP-25 in individuals with and without noise exposure. MANOVA was performed to compare between TB ABR and NB-chirp ABR between the two groups. Statistical analysis revealed a notable difference for NB-chirp comparisons between the two groups at three frequencies: 500 Hz, F(1, 38) = 10.6; 1000 Hz, F(1, 38) = 7.91; and 2000 Hz, F(1, 38) = 6.64. Whereas, the difference was evident at only 500 Hz: F(1, 38) = 4.98 in case of TB ABR. However, there was no significant difference seen at any of the frequencies for amplitude parameters in both TB and NB-chirp ABR. Latency of wave V using NB-chirp was considered to be a better indicator compared to TB, acting as a better clinical tool in early identification, diagnosis, and monitoring of noise induced hearing loss (NIHL). | ||
| 653 | _aAuditory brainstem response, narrow band-chirp, tone burst, noise induced hearing loss, cochlear synaptopathy | ||
| 700 | _aAishwarya Lakshmi | ||
| 700 | _aKoratagere Narayanaswamy Divyashree | ||
| 700 | _aKunnupurath Puthenveedu Keerthana | ||
| 700 | _aSreeraj Konadath | ||
| 700 | _aSugathan Adithya | ||
| 700 | _aZeena Venkatacheluvaiah Pushpalatha | ||
| 773 | _aIntractable & rare diseases research | ||
| 856 | _uhttps://doi.org/10.5582/irdr.2019.01073 | ||
| 942 |
_cFJAS _yFJAS |
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| 999 |
_c17929 _d17929 |
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