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Risk factors for hearing loss after pediatric meningitis in Japan
Nodoka Adachi1, Ken Ito, Hideaki Sakata
1Division of Otolaryngology, Saitama Children's Medical Center, Saitama, Japan.
Insights
High C-reactive protein levels predict hearing loss in children with meningitis. Streptococcus pneumoniae meningitis also increases the risk of hearing impairment in pediatric patients.
Area of Science:
- Pediatric Infectious Diseases
- Neuroscience
- Audiology
Background:
- Meningitis is a serious infection that can lead to long-term complications in children.
- Hearing loss is a potential sequela of pediatric meningitis, impacting development and quality of life.
Purpose of the Study:
- To identify predictors of hearing loss in Japanese children diagnosed with meningitis.
- To investigate the association between specific bacterial pathogens and hearing impairment.
Main Methods:
- Retrospective analysis of 155 pediatric meningitis cases (1990-2005).
- Multiple logistic regression used to identify risk factors for hearing loss.
- Auditory brainstem response tests employed for hearing loss evaluation.
Main Results:
- 23% of children developed hearing loss; 9.7% experienced profound hearing loss.
- Streptococcus pneumoniae meningitis cases showed a 50% rate of hearing loss.
- High serum C-reactive protein levels and S. pneumoniae in cerebrospinal fluid were significant risk factors.
Conclusions:
- Elevated serum C-reactive protein levels are a novel predictor of hearing impairment following pediatric meningitis.
- Prompt identification of risk factors can aid in early intervention and management of hearing loss.
Objectives:
We sought to identify predictors for hearing loss in Japanese children with meningitis.
Methods:
We analyzed 155 cases of pediatric meningitis without other entities causing hearing loss in children admitted to Saitama Children's Medical Center between 1990 and 2005 for potential risk factors for hearing loss, using multiple logistic regression. Auditory brain stem response tests were performed to evaluate hearing loss.
Results:
Of 155 children, 35 (23%) developed hearing loss (21 unilaterally and 14 bilaterally). Profound hearing loss (greater than 90 dB normal hearing level) occurred in 15 patients (9.7%; 4 unilaterally and 11 bilaterally). Of 112 patients with positive cerebrospinal fluid cultures, 27 (24%) developed hearing loss and 13 (12%) showed profound loss. Of 22 patients with Streptococcus pneumoniae meningitis, 11 (50%) developed hearing loss and 7 (32%) showed profound loss. Of 54 patients with Haemophilus influenzae meningitis, 11 (20%) developed hearing loss and 4 (7.4%) showed profound loss. High serum C-reactive protein levels and cerebrospinal fluid cultures positive for Streptococcus pneumoniae were identified as significant risk factors for hearing loss.
Conclusions:
A high serum C-reactive protein level was first identified as a risk factor for hearing impairment after pediatric meningitis.
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