Preliminary observation of galvanic vestibular stimulation-vestibular evoked myogenic potentials in healthy young people
10.3760/cma.j.issn.1673-0860.2019.06.007
- VernacularTitle: 直流电刺激诱发健康青年人前庭诱发肌源性电位的初步观察
- Author:
Zichen CHEN
1
;
Xinyu WEI
1
;
Yuzhong ZHANG
1
;
Ying CHENG
1
;
Fangyuan YANG
1
;
Chao ZHANG
2
;
Feiyun CHEN
1
;
Ying GAO
1
;
Juan HU
1
;
Min XU
1
;
Qing ZHANG
1
Author Information
1. Department of Otorhinolaryngology Head and Neck Surgery, the Sencond Affiliated Hospital of Xi′an Jiaotong University, Xi′an 710004, China
2. Department of Otorhinolaryngology, the First Hospital of Xi′an, Xi′an 710002, China
- Publication Type:Journal Article
- Keywords:
Vestibular evoked myogenic potentials;
Electric stimulation;
Adult
- From:
Chinese Journal of Otorhinolaryngology Head and Neck Surgery
2019;54(6):432-438
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To introduce the method of galvanic vestibular stimulation-vestibular evoked myogenic potentials (GVS-VEMP) as well as to observe and analyze the parameters and elicited rate of GVS-cVEMP and GVS-oVEMP in healthy young people in China.
Methods:Twenty six normal young subjects were recruited for conventional examinations of GVS-VEMP. The subjects were 21-37 years old, average age was (25.8±3.7) years old, including 13 males and 13 females. The galvanic stimulation intensity of 3 mA/1 ms was used to evoke cVEMP and oVEMP on the sternocleidomastoid and inferior extraocular muscles respectively, and the intensity of stimulus was decreased until the response disappeared, the threshold, latency, amplitude, interval phase and interaural amplitude ratio(IAR) were calculated. SPSS18.0 software was used for statistical analysis.
Results:All subjects were elicited normal GVS-cVEMP and GVS-oVEMP under 3 mA/1 ms, the elicited rate was 100%. The threshold of GVS-cVEMP was (1.18±0.47) mA, p1 latency was (10.43±1.54) ms, n1 latency was (17.91±1.20) ms, the amplitude was (102.47±56.77) uV and IAR was (0.26±0.20). The threshold of GVS-oVEMP was (1.12±0.50) mA, n1 latency was (8.46±1.05) ms, p1 latency was (11.83±1.27) ms, the amplitude was (9.12±6.82) uV and IAR was (0.25±0.20). In terms of gender and lateral comparison, only the GVS-oVEMP amplitude was higher for male than for female, which had significant statistical difference (P<0.05), and there was no statistical difference in the other parameters between GVS-cVEMP and GVS-oVEMP.
Conclusion:GVS-cVEMP and GVS-oVEMP could be elicited in healthy youth population, and the parameters could provide reference for subsequent vestibular function evaluation.
