Change of Stapedial Reflex Threshold according  to the Depth of Intravenous Propofol Anesthesia

이진우; 전경명; 고의경; 이일우; 공수근; 박성환

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자료유형: 학술저널

저자정보: 이진우 전경명 고의경 이일우 공수근 박성환

저널정보: 대한이비인후과학회 대한이비인후-두경부외과학회지 대한이비인후과학회지 두경부외과학 제53권 제8호

발행연도: 2010.1

수록면: 475 - 479 (5page)

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Background and Objectives Stapedial reflex (SR) threshold is of considerable diagnostic significance in the evaluation of audiological function, especially under sedation or general anesthesia since anesthetic drugs often act on neurotransmitters or neuromodulators. The aim of this study was to evaluate the changes in the SR threshold according to the depth of anesthesia. Subjects and Method Sixty patients with normal hearing who were scheduled for operation under general anesthesia were included in this study. Anesthetic agent used was propofol and the depth of anesthesia was monitored by the bispectral index (BIS). SR was measured five times according to depth of anesthesia. Results Both ipsilateral and contralateral SR thresholds were increased according to the depth of anesthesia using propofol. In particular, ipsilateral SR showed no response at BIS 60 and contralateral SR at BIS 40. However, there were no significant differences between age groups and gender. Conclusion Propofol significantly increased both ipsilateral and contralateral SR threshold according to depth of anesthesia. When it is necessary to measure SR under general anesthesia,we should consider the effect on SR threshold according to the depth of anesthesia. Korean J Otorhinolaryngol-Head Neck Surg 2010;53:475-9

#General anesthesia·Acoustic reflex·Propofol·Bispectral index.

참고문헌 (12)

참고문헌 신청

Chinn K / 1993 / Effects of inhalant anesthesia on the middle ear as measured by tympanometry / Arch Otolaryngol Head Neck Surg 119 (3) : 283 ~ 287

Ciardo A / 2005 / Reversed ipsilateral acoustic reflex: a study on subjects treated with muscle relaxants / Ear Hear 26 (1) : 96 ~ 103

Crawford MW / 2009 / Dose-dependent suppression of the electrically elicited stapedius reflex by general anesthetics in children undergoing cochlear implant surgery / Anesth

Feeney MP / 2004 / Wideband reflectance measures of the ipsilateral acoustic stapedius reflex threshold / Ear Hear 25 (5) : 421 ~ 430

Guven G / 2006 / Influence of anaesthetic agents on transient evoked otoacoustic emission and stapedius reflex threshold / J Laryngol Otol 120 (1) : 10 ~ 15

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