Tap-hammer elicited vestibular-evoked myogenic potentials system: its design and preliminary application
10.3760/cma.j.cn115330-20200427-00338
- VernacularTitle:Tap-hammer前庭诱发肌源性电位激发系统的研发和初步应用
- Author:
Yuzhong ZHANG
1
;
Pan XIONG
;
Huandi ZHAO
;
Zichen CHEN
;
Xinyu WEI
;
Qian LIU
;
Feiyun CHEN
;
Ying CHENG
;
Juan HU
;
Shuna LI
;
Jun YANG
;
Qing ZHANG
Author Information
1. 西安交通大学第二附属医院耳鼻咽喉头颈外科，西安 710004
- Keywords:
Vestibular evoked myogenic potentials;
Bone conduction
- From:
Chinese Journal of Otorhinolaryngology Head and Neck Surgery
2020;55(10):957-961
- CountryChina
- Language:Chinese
-
Abstract:
Objective:The aim of this study was to design and perform "Tap-hammer"system that can be used to elicit vestibular evoked myogenic potentials (VEMP) in normal adults and to report the preliminary results of this system.Methods:A triggered Tap-hammer was designed, made and connected with an electric recording system, to form as a system for Tap-VEMP recording. Twenty healthy adult volunteers (7 males and 13 females, aged 20 to 37 years, 40 ears in total) were recruited for air-conducted sound VEMP (ACS-VEMP) and Tap-VEMP examinations. Waveforms and parameters of both VEMPs were recorded and analyzed. SPSS 22.0 software was used for statistical analysis.Results:The response rates of ACS-, Tap-ocular VEMP (oVEMP) and ACS-, Tap-cervical VEMP (cVEMP) were both 100% (40/40). The mean±SD n1 latency, p1 latency, n1-p1 interval, amplitude, and asymmetry ratio (AR%) of Tap-oVEMP were (9.80±2.51)ms, (13.90±3.26)ms, (4.09±1.43)ms, (16.43±9.61)μV, (22.68±17.35)% respectively. The mean±SD p1 latency, n1 latency, p1-n1 interval, amplitude, and asymmetry ratio (AR%) of Tap-cVEMP were (13.26±2.07)ms, (21.84±2.89)ms, (8.58±2.10)ms, (457.65±274.94)μV, (20.42±13.46)% respectively. Both n1 latency and p1 latency of Tap-VEMPs were shorter than those in ACS-VEMPs ( P<0.05). No statistical difference could be found between the two stimulation methods in the parameters of n1-p1 interval, amplitude, and asymmetry ratio( P>0.05). Conclusion:The Tap-hammer system can elicit VEMP responses in healthy young people. This system can be used as an alternative stimulation method for bone conduction VEMP.
