2024-03-29T02:27:51Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00028233
2023-01-16T04:26:43Z
499:500:501
Significance of internal auditory canal diverticula in ears with otosclerosis
Wang, Fei
91958
Yoshida, Tadao
91959
Shimono, Mariko
91960
Sugimoto, Satofumi
91961
Teranishi, Masaaki
91962
Naganawa, Shinji
91963
Sone, Michihiko
91964
Internal auditory canal diverticulum
otosclerosis
hearing level
blood flow
laser-Doppler flowmetry
Background: Diverticula in the internal auditory canal (IAC) have been reported in ears with otosclerosis. Objective: We evaluated hearing levels and vascular activity in ears with otosclerosis with and without IAC diverticula and clarify the significance of IAC diverticula. Materials and methods: Sixty-one ears from 54 patients who underwent stapes surgery for otosclerosis [fenestral (48 ears) and retrofenestral (13 ears) groups] were included in the present study. Preoperative hearing levels on pure tone audiometry (PTA) and intraoperative measurements of blood flow were compared between the groups. Results: A total of 24 of 61 ears (39.3%) showed IAC diverticula, significantly higher than the frequency in ears without otosclerosis (3.7%). No significant differences in air- and bone-conduction thresholds on PTA were evident between ears with and without IAC diverticula in each group. Ears without IAC diverticula tended to show higher blood flow in the area anterior to the oval window than ears with IAC diverticula, but the difference was not significant. Conclusions: The incidence of the IAC diverticula in otosclerosis was significantly higher than in cases without otosclerosis. The existence of IAC diverticula was not evidently related to the severity of the disease from the perspective of hearing level and vascular activity.
Published online: 25 Jan 2019. ファイル公開:2020/01/25
journal article
Taylor & Francis
2018
application/pdf
Acta Oto-Laryngologica
12
138
1066
1069
0001-6489
1651-2251
https://nagoya.repo.nii.ac.jp/record/28233/files/2018-0325_R1-clear.pdf
eng
https://doi.org/10.1080/00016489.2018.1521526
This is an Accepted Manuscript of an article published by Taylor & Francis Group in Acta Oto-Laryngologica on 25/01/2019, available online: http://www.tandfonline.com/10.1080/00016489.2018.1521526.