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[Influence of obstructive sleep apnea-hypopnea syndrome in children on hearing problem]
Shi-Lin Liu1, Wei-Yi Liu, Ya-Mei Zhang
1Influence of obstructive sleep apnea-hypopnea syndrome in children on hearing problem slliu59@yahoo.com.cn
Insights
Obstructive sleep apnea hypopnea syndrome in children can negatively impact middle-ear impedance and hearing. Surgical intervention like adenotonsillectomy may improve hearing outcomes.
Area of Science:
- Pediatric Otolaryngology
- Sleep Medicine
- Audiology
Context:
- Obstructive sleep apnea hypopnea syndrome (OSAHS) is prevalent in children.
- Adenotonsillar hypertrophy is a common cause of upper airway obstruction in pediatric OSAHS.
- The effects of OSAHS on pediatric hearing are not fully understood.
Purpose:
- To investigate the relationship between obstructive sleep apnea hypopnea syndrome and hearing function in children.
- To analyze audiological parameters in children diagnosed with OSAHS.
- To evaluate the impact of OSAHS on middle-ear impedance and hearing thresholds.
Summary:
- 143 children with OSAHS underwent polysomnography, audiometry, and impedance testing.
- A significant portion of children with OSAHS exhibited abnormal tympanograms (Type C or B) and elevated hearing thresholds.
- While mild hypoxemia showed limited correlation with hearing levels, surgical treatment (adenoidectomy/adenotonsillectomy) demonstrated potential for hearing improvement.
Impact:
- Findings suggest that upper airway obstruction in pediatric OSAHS can affect middle-ear function.
- Early identification and management of OSAHS may be crucial for preserving hearing in children.
- Surgical intervention for adenotonsillar enlargement may lead to positive audiological outcomes in affected children.
Objective:
To analyze the effects of obstructive sleep apnea hypopnea syndrome on hearing among children.
Methods:
One hundred and forty three apnea children proved with overnight polysomnography received pure tone audiometry, acoustic impedance test, and lateral nasopharyngeal airway X-ray. Hearing threshold level and blood oxygen's saturation, apnea hypopnea index were analyzed.
Results:
Among the 127 cases,63 cases had type C or B tympanograms, and 33 of them had lifted hearing threshold level. The remaining 64 cases had normal hearing and tympanograms. It was found correlation between the A/N ratio and blood oxygen's saturation, and no correlation between the A/N ratio and average of hearing threshold level. There was no correlation between AHI and average of hearing threshold level of each group. Hearing level can be improved after adenoidectomy or adenotonsillectomy.
Conclusions:
The upper airway obstruction due to adenotonsillar enlargement is common in children. It also affects the middle-ear impedance. Although short -term and mild degree of hypoxemia has few influence on hearing threshold level, it may affect cochlear function.
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