Analysis of the clinical salience for sudden hearing loss in acoustic neuroma
10.3760/j.issn:1673-0860.2001.01.011
- VernacularTitle:以突发性听力减退为首发症状的听神经瘤临床特点分析
- Author:
Mao LU
1
;
Haibing LIU
;
Junxian WANG
Author Information
1. Chengdu Railway Centrel Hospital
- From:
Chinese Journal of Otorhinolaryngology Head and Neck Surgery
2001;36(1):31-33
- CountryChina
- Language:Chinese
-
Abstract:
Objective To avoid misdiagnosis and misapplied therapy of acoustic neuroma. Methods 92 cases of acoustic neuroma treated between 1983 and 1997 were retrospectively reviewed. Among them, 20 patients (21 ears, 21.7%) presented with sudden hearing loss as the starting symptoms. The diagnosis was based on audiological and radiologic examinations. Results The clinical and audiological analysis demonstrated that 57.1% of the ears showed hearing loss over 71 dBHL, and all ears had deteriorated ABRs. Acoustic reflex was nonreactive in all 10 ears tested. Positive findings in CT scan were 88.89%. CT pneumoencephalography or MRI provided useful information of diagnosis in those with negative findings of plane CT scan. Conclusion ABR should be used as a routine test for patients with sudden deafness. When ABR was abnormal, CT scan around the internal auditory meatus was needed.
