Pediatric Hearing Thresholds Post-bacterial Meningitis
Mercy E. Jatto, Adebolajo A. Adeyemo, Segun Ayodeji Ogunkeyede, Ikeoluwa Lagunju, O G B Nwaorgu
Abstract
INTRODUCTION Disabling hearing loss as a sequela of bacterial meningitis results from damage to the auditory system. This study was designed to ascertain the hearing thresholds in survivors of bacterial meningitis and risk factors for hearing loss in childhood bacterial meningitis METHODOLOGY One hundred and two children admitted and treated for bacterial meningitis were recruited prospectively along with 102 age and sex matched controls had auditory evaluation using otoacoustic emission and auditory brain stem response tests 48 prior to hospital discharge. This was also repeated at the follow-up clinic at one month after hospital discharge, irrespective of initial hearing assessment results. RESULT There were 57 (55.9%) males and 45 (44.1%) females among the cases (mean age 5.34 years ± 4.40) and 55 (53.9%) males and 47(46.1%) females among the controls (mean age 5.31 years ± 3.15). The prevalence of hearing loss was 27% among the cases while it was 5.4% among the controls. The risk factors of hearing impairment in this study were the presence of anemia, leukocytosis, and hypoglycorrhachia. CONCLUSION Hearing impairment with varying degrees of severity is a frequent complication of bacterial meningitis in children