Hidden hearing loss in tinnitus patients with normal audiograms: implications for the origin of tinnitus.
- Author:
Hao XIONG
1
;
Ling CHEN
;
Haidi YANG
;
Xianghui LI
;
Zeheng QIU
;
Xiayin HUANG
;
Yiqing ZHENG
Author Information
1. Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.
- Publication Type:Journal Article
- MeSH:
Acoustic Stimulation;
Adolescent;
Adult;
Audiometry, Pure-Tone;
Auditory Threshold;
Case-Control Studies;
Evoked Potentials, Auditory, Brain Stem;
Female;
Hearing Loss;
diagnosis;
physiopathology;
Hearing Tests;
Humans;
Male;
Middle Aged;
Tinnitus;
etiology;
physiopathology;
Young Adult
- From:
Journal of Clinical Otorhinolaryngology Head and Neck Surgery
2013;27(7):362-365
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To investigate hidden hearing loss in tinnitus patients with normal audiograms by means of auditory brainstem response (ABR) and explore the origin of tinnitus.
METHOD:Pure tone thresholds, ABR thresholds, amplitude of wave I and wave V of ABR were analyzed in 40 tinnitus patients and 15 controls.
RESULT:There was no significantly difference in pure tone thresholds and ABR thresholds between those tinnitus patients and controls while a reduced amplitude of wave I and normal amplitude of wave V of ABR in the tinnitus patients became evident.
CONCLUSION:Tinnitus patients with normal audiograms have hidden hearing loss at the level of primary auditory nerve and the generation of tinnitus is likely attributed to a homeostatic response of neurons in brainstem.
