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Query: UMLS:C0085437 (bacterial meningitis)
 4,038 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Auditory brainstem response (ABR) was used to assess possible hearing loss in 60 patients recovering from bacterial meningitis. The ABR results were consistent with either unilateral or bilateral hearing loss in 35% of the cases tested. Of these, 15% were conductive-type hearing loss. Twelve percent had sensorineural hearing losses and normal brainstem function. The remaining 8% had elevated ABR thresholds coincident with findings suggestive of neuropathology of the auditory brainstem pathways. A case of reversible sensorineural hearing loss was documented. Various clinical and demographic factors were examined to determine their predictive value with regard to hearing loss. As expected, otitis media occurred significantly with conductive hearing loss. Type of pathogen (Streptococcus pneumoniae) and hospitalization greater than two weeks were significantly correlated with sensorineural hearing loss. As meningitis typically affects young children who are difficult to test with conventional audiometry, ABR provides an effective means of testing hearing in this population.
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PMID:Auditory brainstem responses in infants recovering from bacterial meningitis. Audiologic evaluation. 684

Acute otitis media and otitis media with effusion (OME) have often been observed in children with bacterial meningitis. OME has also been proposed as the mechanism of reversible hearing loss after meningitis. In this controlled study, children with acute bacterial meningitis were studied using auditory brainstem responses (ABR), otoacoustic emissions, tympanometry and otoscopy. An age- and sex-matched control was recruited for each patient and the incidence of acute otitis media and OME was compared between the two groups. One hundred and twenty-four children with meningitis were studied. Ninety-two children (74 per cent) had meningococcal meningitis. Five patients (4 per cent) had conductive hearing loss (ABR threshold > or = 30 dB HL) at the time of discharge from hospital. None of the patients or controls had acute otitis media. Patients and controls were well matched for risk factors for OME and the prevalence of middle ear effusion in patients and controls was 7.2 per cent and 11.3 per cent respectively. The relative risk of OME in the children with meningitis was 0.64 (95 per cent confidence interval 0.29 to 1.42). After nine months, three of the five children with meningitis and conductive hearing loss had regained normal hearing. In contrast to previous reports, there was no relationship between bacterial meningitis and acute otitis media or OME in this study. Nevertheless, coincidental conductive hearing defects were identified as the cause of reversible hearing loss in three patients.
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PMID:Acute otitis media and otitis media with effusion in children with bacterial meningitis. 942 76