分泌性中耳炎患儿前庭功能评价

摘要

Objective To investigate the vestibular functions ,especially the semicircular canal function in children with secretory otitis media (SOM ) .Methods A total of 24 children with SOM of median age of 8 .5 years had effusion that lasted about 3 to18 months ,compared with 12 children without effusion in the middle ear with the median age of 7 .9 years .The two groups received pure tone audiometry ,acoustic immitance and semicircular canal functions ,including the saccadic test ,the tracking test ,the gaze test and spontaneous nystagmus test .Results The 24 children with SOM had conductive hearing loss ,including 11 mild cases and 13 moderate case .The 12 children without SOM had the normal hearing .There were significant differences in semicircular canal functions between the two groups (8/24 & 0/12 , P<0 .05) .Age ,genders ,hearing -loss degrees and vertigo were not the significant factors which affected the semicircular canal function .Conclusion The function of semicircular canal was affected in children with SOM ,but the mechanisms were still not clear .%目的：探讨儿童分泌性中耳炎（secretory otitis media ，SOM ）对半规管功能的影响及SOM 儿童的前庭功能。方法选取分泌性中耳炎患儿24例（中耳炎组），中位年龄8岁5个月，病程3～18个月，正常儿童12例（对照组），中位年龄8岁4个月，两组分别进行纯音测听及声导抗、前庭功能检查（扫视试验、平稳跟踪试验、视动性眼震试验、凝视试验、自发性眼震、冷热气试验），比较两组的检测结果。结果中耳炎组患儿均为传导性听力损失，其中，轻度听力损失11例，中度听力损失13例，正常对照组纯音听阈及声导抗均正常；两组扫视试验、平稳跟踪试验、视动性眼震试验、凝视试验、自发性眼震结果均正常，冷热气试验结果示中耳炎组半规管轻瘫8例（33．33％，8／24），正常对照组0例，前者高于后者，差异有统计学意义（ P＜0．05）；中耳炎组中，半规管功能正常与否患者在性别、年龄、听力损失程度、伴与不伴眩晕方面比较差异无统计学意义。结论部分分泌性中耳炎患儿半规管功能受影响，且与性别、年龄、听力损失程度、伴或不伴眩晕无明显关系。