Analysis of imaging and hearing results in children with enlarged vestibular aqueduct

doi:10.3969/j.issn.1006-7795.2022.04.004

Abstract

Abstract: Objective To explore the differences in the pass rate of neonatal hearing screening and degree of hearing loss between the ears with simple enlarged vestibular aqueduct (EVA) and EVA accompanied by other inner ear malformations. Methods The objects of this study were children diagnosed with enlarged vestibular aqueduct by computed tomography in Children's Hearing Diagnosis Center, Beijing Tongren Hospital,Capital Medical University and accepted newborn hearing screening (NHS) from January 2009 to December 2019. There are a total of 182 ears of 92 cases. The results of their NHS, clinical hearing tests and imaging of ear were collected, and the children were grouped according to image performance. The ears in group A with EVA alone, group B with EVA and Mondini deformity (vestibular pool enlarged may be included simultaneously)(IP-Ⅱ), and group C with EVA and enlarged vestibular pool or semicircular canal malformation without Mondini malformation. The difference in the pass rate of NHS between different groups was analyzed with chi-square test. Kruskal Wallis rank sum test was used to compare the degree of hearing loss between different groups. Results The age of 92 patients is between 1.5-65.0 months, 47 males (51.1%) and 45 females (48.9%). There were 73 ears in group A(40.11%, 73/182),48 ears in group B(26.37%, 48/182), and 61 ears in group C(33.52%, 61/182). Group B and group C account for 59.89% in total. The pass rate of NHS showed no significant difference between A, B, and C groups (χ²=1.122,P=0.571), and between B and A+C groups (χ²=0.401,P=0.526).The difference of the degree of hearing loss between different group showed no statistical significance(P>0.05). Conclusion Most children (about 60%)enrolled in this study had EVA accompanied by other inner ear malformation. The pass rate of newborn hearing screening and the degree of hearing loss showed no significant difference between the groups. Whether vestibular aqueduct enlargement is accompanied by other inner ear malformations could lead to delayed hearing loss.

Key words: enlarged vestibular aqueduct, newborn hearing screening, Mondini deformity, the degree of hearing loss, incomplete partition type Ⅱ

CLC Number:

Yang Yali, Huang Lihui, Cheng Xiaohua, Liu sha. Analysis of imaging and hearing results in children with enlarged vestibular aqueduct[J]. Journal of Capital Medical University, 2022, 43(4): 535-539.

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URL: https://journal03.magtech.org.cn/Jweb_sdykdxxb/EN/10.3969/j.issn.1006-7795.2022.04.004

https://journal03.magtech.org.cn/Jweb_sdykdxxb/EN/Y2022/V43/I4/535

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