Research on congenital severe-to-profound sensorineural hearing loss associated with central lucency of the bony island of the lateral semicircular canal

Central lucency of the bony island of the lateral semicircular canal (LSCC) is commonly found in patients with congenital severe-to-profound sensorineural hearing loss (SNHL). Exploring the significance of bony island lucency of LSCC in congenital severe-to-profound SNHL patients. Retrospective meas...

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Bibliographic Details
Published in:Acta oto-laryngologica 2023-02, Vol.143 (2), p.134-140
Main Authors: Wang, Qin, Bian, Panpan, Bai, Shengjin, Chen, Chi, Wang, Yanli, Guo, Yufen, Xu, Baicheng
Format: Article
Language:English
Subjects:
Bony island lucency
computed tomography
Ear
Hearing Loss, Sensorineural - diagnostic imaging
Hearing Loss, Sensorineural - etiology
Humans
inner ear
lateral semicircular canal
Retrospective Studies
Semicircular Canals - abnormalities
Semicircular Canals - diagnostic imaging
sensorineural hearing loss
Temporal Bone - diagnostic imaging
Tympanic Membrane Perforation - complications
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Summary:Central lucency of the bony island of the lateral semicircular canal (LSCC) is commonly found in patients with congenital severe-to-profound sensorineural hearing loss (SNHL). Exploring the significance of bony island lucency of LSCC in congenital severe-to-profound SNHL patients. Retrospective measurements of the inner ear structures were made on axial temporal bone CT scans from 182 (364 ears) congenital severe-to-profound SNHL patients and 50 (100 ears) tympanic membrane perforation (TMP) patients. The incidence of bony island lucency of LSCC was 46.7% in the congenital severe-to-profound SNHL group and 0% in the TMP group. There was a statistically significant difference in inner ear structures among congenital severe-to-profound SNHL patients with normal inner ear structure and bony island lucency of LSCC, congenital severe-to-profound SNHL patients with normal inner ear structure and no bony island lucency of LSCC, and TMP patients. The importance of the bony island lucency of LSCC was further confirmed through multiple linear regression analysis. Bony island lucency may have significance in congenital severe-to-profound SNHL and may be a manifestation of largely overlooked SCC malformation or hypoplasia of the inner ear.
ISSN:0001-6489
1651-2251
DOI:10.1080/00016489.2023.2179661