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Abnormalities of the auditory brainstem response in post-meningitic infants and children
Insights
Auditory brainstem response (ABR) effectively identifies hearing loss and brainstem issues in children post-meningitis. This method provides crucial objective data for pediatric central nervous system infection cases.
Area of Science:
- Pediatric Neurology
- Audiology
- Infectious Diseases
Background:
- Meningitis, a serious central nervous system infection, can lead to auditory and neurological complications in children.
- Assessing hearing and brainstem function in pediatric patients post-meningitis is critical for timely intervention.
- Traditional assessment methods may be limited in providing objective data in this population.
Purpose of the Study:
- To evaluate the effectiveness of auditory brainstem response (ABR) in identifying cochlear impairment and brainstem dysfunction in children following meningitis.
- To assess the incidence of neurological sequelae in pediatric meningitis survivors.
- To determine the utility of ABR for monitoring recovery in affected children.
Main Methods:
- Auditory brainstem response (ABR) was recorded in 86 infants and children (1 month to 14 years) after bacterial or viral meningitis.
- Neurological examinations were performed on children with abnormal ABR findings.
- Follow-up ABR assessments were conducted in a subset of patients several months post-hospitalization.
Main Results:
- Thirty-two children (37%) showed some degree of cochlear impairment.
- Eight children exhibited abnormal ABRs suggestive of brainstem dysfunction, with six also having abnormal neurological exams.
- Improvement in ABR was observed in six infants upon follow-up, attributed to resolving conductive hearing loss.
Conclusions:
- Auditory brainstem response (ABR) is an effective tool for detecting hearing impairment and brainstem dysfunction in pediatric patients after meningitis.
- ABR provides objective data crucial for managing central nervous system infections in children.
- Early identification and monitoring using ABR can aid in managing neurological and auditory sequelae.
Abstract:
The auditory brainstem response (ABR) was recorded in 86 infants and children from 1 month to 14 years of age following episodes of bacterial or viral meningitis. Thirty-two demonstrated some degree of cochlear impairment. These was a high incidence of neurological sequellae in these children. Eight children exhibited abnormal changes suggestive of brainstem dysfunction. Six of these eight children also had abnormal neurologic examination. Recovery, or at least improvement in the ABR, occurred in six infants who were assessed upon discharge from the hospital, and then again several months post-hospitalization. In each case improvement was attributed to a resolving conductive component. The ABR was found to be effective for identifying hearing impairment and brainstem dysfunction in pediatric patients following central nervous system infection. Objective information, not available from other methods of assessment was obtained.