Capacity of Rectified Vestibular Evoked Myogenic Potential in Correcting Asymmetric Muscle Contraction Power

김건우; 제1; 정재윤; 이정현; 서명환

추천

검색

자료유형: 학술저널

저자정보: 김건우 제1 정재윤 이정현 서명환

저널정보: 대한이비인후과학회 Clinical and Experimental Otorhinolaryngology Clinical and Experimental Otorhinolaryngology 제6권 제4호

발행연도: 2013.1

수록면: 209 - 213 (5page)

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

Objectives. Rectified vestibular evoked myogenic potential (rVEMP) is new method that simultaneously measures the muscle contraction power during VEMP recordings. Although there are a few studies that have evaluated the effect of the rVEMP, there is no study that has evaluated the capacity of rVEMP during asymmetrical muscle contraction. Methods. Thirty VEMP measurements were performed among 20 normal subjects (mean age, 28.2±2.1 years; male, 16). VEMP was measured in the supine position. The head was turned to the right side by 0°, 15°, 30°, and 45° and the VEMPs were recorded in each position. The interaural amplitude difference (IAD) ratio was calculated by the conventional non-rectified VEMP (nVEMP) and rVEMP. Results. The nVEMP IAD increased significantly according to increasing neck rotation. The IAD in rVEMP was almost similar from 0° to 30°. However, the IAD was significantly larger than the other positions when the neck was rotated 45°. When IAD during 0° was set as a standard, the IAD of the rVEMP was significantly smaller that the nVEMP only during the 30°rotaion. Conclusion. Rectified VEMP is capable of correcting asymmetrical muscle contraction power. In contrast, it cannot correct the asymmetry if muscle contraction power asymmetry is 44.8% or larger. Also, it is not necessary if muscle contraction power asymmetry is 22.5% or smaller.

#Rectified vestibular evoked myogenic potential #Muscle contraction power #Otology #Vestibular diseases

참고문헌 (9)

참고문헌 신청

Colebatch JG / 1994 / Myogenic potentials generated by a click-evoked vestibulocollic reflex / J Neurol Neurosurg Psychiatry 57 (2) : 190 ~ 197

Kang Jin Lee / 2008 / The Usefulness of Rectified VEMP / Clinical and Experimental Otorhinolaryngology 1 (3) : 143 ~ 147

Lim CL / 1995 / The influence of voluntary EMG activity and click intensity on the vestibular click evoked myogenic potential / Muscle Nerve 18 (10) : 1210 ~ 1213

Ochi K / 2001 / Variance of vestibular-evoked myogenic potentials / Laryngoscope 111 (3) : 522 ~ 527

Ochi K / 2003 / Age-related changes in the vestibular-evoked myogenic potentials / Otolaryngol Head Neck Surg 129 (6) : 655 ~ 659