Correlation Between Delayed Speech and Hearing Loss by Using Auditory Brainstem Response Test

Abstract

This study aimed to know the correlation between delayed speech and hearing loss by using auditory brainstem response test. Fifty people between the ages of 17 and 52 years were participated in this study. Patients, families of patients, and those travelling to the clinic for pre-employment testing in Baghdad all played roles in the selection process. Each participant provided written informed consent before participation. Participants were split into two categories for this study: The first group, the control, had 15 people with no known systemic disorders and normal peripheral hearing on both sides (hearing threshold level 25 dB at any frequency between 250 and 8000 Hz). People with preexisting health conditions (such as endocrine, cardiovascular, renal, or neurological complaints) or a history of otological illness were not included in the study. Group 2: Thirty-five people with mild-to-moderate sensorineural hearing loss (hearing threshold does not exceed 60 dB even at single frequency in the 250-8000 Hz range) were tested. They did not suffer from any endocrine, cardiovascular, renal, or neurological disorders. Conditions such as unilateral or asymmetrical hearing loss, conductive or mixed hearing loss, middle ear diseases, and the suspicion of retrocochlear lesions will rule out a patient from participation. There was a total of 15 participants in the control group, split evenly between 2 men and 13 women. They were between the ages of 17 and 52. Pure tone thresholds averaged 10.22 ±1.04 dB (right ear) and 10.13±1.09 dB (left ear), respectively. All participants in the control group had word discrimination scores of 1000.00% in both ears, and their auditory reflex thresholds were within the normal range. The G2 trial group had 35 participants, 17 men and 18 females of similar ages to the control group. All individuals exhibited bilateral mild to severe SNHL (23 mild cases and 12 moderate cases). Hearing loss might last anywhere from one year to fifteen years. The average and standard deviation of pure tone thresholds were 39.71 and 13.54 decibels in the right and left ears, respectively. The right ear scored 95.8±6.01% on the word discrimination test, whereas the left ear scored 96.41±5.33%. Hearing thresholds and acoustic reflex thresholds both were within normal ranges