소리 자극 강도와 흉쇄유돌근의 수축의 변화에 따른전정유발근전위의 변화

박홍주; 한수희; 심대보; 신향애; 임상균; 안재윤; 정용수; 신정은

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자료유형: 학술저널

저자정보: 박홍주 한수희 심대보 신향애 임상균 안재윤 정용수 신정은

저널정보: 대한이비인후과학회 대한이비인후-두경부외과학회지 대한이비인후과학회지 두경부외과학 제50권 제7호

발행연도: 2007.1

수록면: 579 - 583 (5page)

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Background and Objectives：The aim of this study was to investigate the effect of the strength of SCM muscle contraction and the intensity of the sound stimulation on the VEMP parameters (amplitude, latency and threshold). Subjects and Method： Twenty normal subjects were included. Subjects pushed with their jaw against the hand-held inflated cuff to generate cuff pressures of 20, 40 and 60 mmHg and sequential stimulation intensities were applied. Variances of each parameter were analyzed. Results：There was no significant difference in terms of threshold according to the side and strength of SCM contraction. P1-N1 amplitude demonstrated no significant differences according to the side；however, the amplitude increased significantly as the cuff pressure and stimulation intensity increased. Interaural amplitude difference ratios showed an increased difference at 20 mmHg when compared to those at 60 mmHg. There was neither a cuff pressure effect, nor stimulation intensity effect when considering the P1 latencies. As for the N1 values, there was no stimulation intensity effect but there was a delayed latency at 20 mmHg when compared to those at 40 or 60 mmHg. Interaural latency difference of N1 latencies did not differ significantly according to the cuff pressure； however, there was an increased difference at 20 mmHg when compared to those at 40 or 60 mmHg. Conclusion：This study shows that VEMP response is influenced by the cuff pressure and stimulation intensity, and we recommend to get each VEMP parameter using this feedback method in the clinical setting. (Korean J Otorhinolaryngol-Head Neck Surg 2007;50:579-83)

#유발 전위·전정기능검사·전정·구형낭. #Evoked potentials·Vestibular function tests·Vestibule·Saccule.

참고문헌 (12)

참고문헌 신청

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

/ 1995 / Vestibular evoked myogenic potentials 24 (1) : 3 ~ 8

/ 1996 / Absent vestibular myogenic potentials in vestibular neuritis. An indicator of inferior vestibular nerve involvement? 122 (8) : 845 ~ 848

/ 1997 / Sound-evoked activity in primary afferent neurons of a mammalian vestibular system 18 (3) : 355 ~ 360

/ 2001 / Characteristics of tone burst-evoked myogenic potentials in the sternocleidomastoid muscles 22 (6) : 796 ~ 802

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