[Characteristics and significance of 1/2 octave frequency pure-tone audiometry on 82 patients with tinnitus].
OBJECTIVE
To characterize the audiometric results of 1/2 octave frequency pure-tone audiometry in tinnitus patients with normal threshold on octave pure-tone audiometry and determine its clinical significance.


METHODS
Eighty-two tinnitus patients (140 ears) with normal pure-tone threshold on octave audiometry were examined by using 1/2 octave frequency pure tone audiometry. Thirty normal subjects (60 ears) served as the control.


RESULTS
Fifty-two ears (37.14%) were mainly hearing loss in high frequency in the tinnitus patients, which closely coincides with the frequency of tinnitus. The hearing loss was slight in most of the tinnitus patients, and the intensity of tinnitus was not related to the degree of hearing loss.


CONCLUSIONS
1/2 octave frequency pure tone audiometry can offer the early and direct evidences of hearing loss for the tinnitus patients with normal threshold on octave pure tone audiometry, and it is of value for this method in detecting early cochlear lesions.
Chen
Ping
P
Department of Otorhinolaryngology, the First Affiliated Hospital, Guangxi Medical University, Nanning, 530021, China.
Su
Jiping
J
Cai
Hongwu
H
Zheng
Minghua
M
Huang
Donghong
D
D000293:Adolescent; D000328:Adult; D001301:Audiometry, Pure-Tone / Q000379:methods*; D001309:Auditory Threshold; D005260:Female; D006801:Humans; D008297:Male; D014012:Tinnitus / Q000175:diagnosis*