Establishing normative values for auditory brainstem response measurements among infants aged 3 to 6 months: Descriptive study
- Author:
Ed Levi L Camarillo
1
;
Chris Robinson D Laganao
1
Author Information
- Publication Type:Journal Article
- Keywords: Absolute latency; Interpeak latency; Normative value
- MeSH: Hearing Loss; Audiology
- From: Southern Philippines Medical Center Journal of Health Care Services 2024;10(1):1-
- CountryPhilippines
- Language:English
-
Abstract:
Background:Establishing clinic-specific normative data for auditory brainstem response (ABR) tests is important due to variability in stimulus parameters and equipment.
Objective:To establish normative values for ABR measurements in infants aged 3 to 6 months.
Design:Descriptive study.
Participants:12 normal-hearing male and female infants, aged 3 to 6 months, who underwent ABR tests.
Setting:Audiology Unit, Department of Otorhinolaryngology - Head and Neck Surgery, Southern Philippines Medical Center, Davao City, January 2021 to December 2022.
Main outcome measures:Absolute latency readings for waves I, III, and V, and interpeak latencies for waves I-III, III-V, and I-V using Interacoustics Eclipse EP15 apparatus with a RadioEar IP30 Insert Earphone transducer at a stimulus intensity of 60-90 dBnHL and a rate of 45.1 clicks/sec.
Main results:All normative ABR ranges were computed with a threshold of ± 2 SD from the means. The computed means (normative ranges) for absolute latencies for waves I, III, and V were 1.49 ± 0.15 (1.19-1.78) msec, 4.45 ± 0.32 (3.81-5.10) msec, and 6.65 ± 0.26 (6.12-7.17) msec, respectively. The computed normative values for interpeak latencies for waves I-III, III-V, and I-V were 2.80 ± 0.22 (2.36-3.23) msec, 2.19 ± 0.21 (1.78-2.61) msec, and 4.99 ± 0.29 (4.41-5.57) msec, respectively.
Conclusion:In our study, we have established normative values for ABR test measurements for infants aged 3 to 6 months.
