Vestibular aqueduct in sudden sensorineural hearing loss

被引:9
|
作者
Sugiura, M. [1 ]
Naganawa, S. [2 ]
Ishida, I. M.
Teranishi, M.
Nakata, S.
Yoshida, T.
Nakashima, T.
机构
[1] Nagoya Univ, Grad Sch Med, Dept Otorhinolaryngol, Showa Ku, Nagoya, Aichi 4668550, Japan
[2] Nagoya Univ, Grad Sch Med, Dept Radiol, Nagoya, Aichi 4668550, Japan
来源
JOURNAL OF LARYNGOLOGY AND OTOLOGY | 2008年 / 122卷 / 09期
关键词
sudden hearing loss; endolymphatic duct; endolymphatic sac; computed tomography; magnetic resonance imaging;
D O I
10.1017/S0022215107000941
中图分类号
R76 [耳鼻咽喉科学];
学科分类号
100213 ;
摘要
Objective: To evaluate the vestibular aqueduct in patients with sudden sensorineural hearing loss. Methods: We evaluated 19 patients (12 men and seven women; age range, 22-79 years) with unilateral sudden sensorineural hearing loss, using computed tomography and magnetic resonance imaging. All these patients had unilateral sudden sensorineural hearing loss. We also evaluated 47 control subjects (22 men and 25 women age range, 22-79 years). Results: In sensorineural hearing loss affected ears, the width of the vestibular aqueduct at the midpoint and at the operculum was significantly greater than that in contralateral ears or in control ears. The width of the vestibular aqueduct at the midpoint and the operculum did not correlate with the audiometric threshold or the audiogram configuration. Contrast enhancement of the ipsilateral endolymphatic sac was observed in 17 of 19 patients with sudden sensorineural hearing loss (89 per cent). Eleven of these 17 patients also showed enhancement on the contralateral side, but no patient showed enhancement only on the contralateral side. In sensorineural hearing loss affected ears, the width of the vestibular aqueduct did not differ significantly between those patients with and Without enhancement. Conclusions: The vestibular aqueducts of sudden sensorineural hearing loss affected ears are wider than those of controls. Precise imaging and evaluation of the inner ear is essential when investigating the cl pathological conditions responsible for sudden sensorineural hearing loss.
引用
收藏
页码:887 / 892
页数:6
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