Characteristics of the air-conducted ocular evoked myogenic potential in the young normal Chinese subjects
10.3760/cma.j.issn.1673-0860.2012.01.005
- VernacularTitle:气导短纯音诱发的眼肌前庭诱发肌源性电位在健康青年人群中的波形特征
- Author:
Qing ZHANG
1
;
Hui SONG
;
Juan HU
;
Yan-Fei CHEN
;
Yan ZHANG
;
Xiao-Ying DU
;
Quan-An ZHANG
;
Jun-Rong WEI
;
Min XU
;
Kimitaka KAGA
Author Information
1. 西安交通大学医学院第二附属医院
- Keywords:
Saccule and utricle;
Vestibular function tests
- From:
Chinese Journal of Otorhinolaryngology Head and Neck Surgery
2012;47(1):15-18
- CountryChina
- Language:Chinese
-
Abstract:
Objective To identify the characteristics of the air-conducted ocular vestibular-evoked myogenic potential(oVEMP) in the young normal Chinese subjects.Methods Twenty five normal subjects were recruited for conventional examinations of oVEMP.The subjects were 19 - 45 years of age [ (24.3 ± 5.6) years ],12 males and 13 females.500 Hz air-conducted tone burst was employed for examination.The threshold of oVEMP in each ear was examined; patterns of these waves were observed and the normal ranges of the oVEMP waves responded to 100 dBnHL were calculated.Results All subjects were elicited with normal oVEMP N1-P1 waves in both ears.The response rate in these subjects was 100％.The threshold of oVEMP examination was ( 86.6 ± 3.6) dBnHL ( (x) ± s),latency N1 ( 10.1 ± 0.4 ) ms,latency P1 ( 14.7 ±1.2) ms,interval N1-P1 ( 4.5 ± 1.0 ) ms,amplitude ( 7.9 ± 4.4 ) μV.Conclusions Air-conducted oVEMP is a kind of vestibular-ocular reflex respond to intensive sound generated by otolithic vestibular end organs.It is stable in the young normal subjects with minor variabilities.
