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미세혈관 감압술 중 청력변화에 대한 뇌간 청각유발전위 검사의 유용성

Other Titles
 The Validity of Intraoperative Brainstem Auditory Evoked Potentials (BAEPs) for the Postoperative Hearing Impairments in Microvascular Decompression (MVD) 
 배선준  ;  이종석  ;  민경태  ;  박세용  ;  정장환  ;  김종훈 
 KOREAN JOURNAL OF ANESTHESIOLOGY, Vol.47(4) : 493-498, 2004 
Journal Title
Issue Date
brainstem auditory evoked potentials ; hearing impairments ; microvascular decompression
BACKGROUND: Intraoperative brainstem auditory evoked potentials reduced the sensorineural hearing loss (SNHL) after microvascular decompression (MVD) This study was performed to evaluate the validity of BAEP parameters of latency or amplitude to SNHL. METHODS: 557 patients out of 930 hemifacial spasm patients performed MVD, who were free from hearing impairment preoperatively, were enrolled in this study. Maximal changes of BAEPs wave V latency and amplitude during MVD were retrospectively sought according to postoperative SNHL. Sensitivity, specificity and positive predictability of wave V latency and amplitude were also sought according to the postoperative SNHL with a critical value of 1.0 msec prolongation and 40% decrease, respectively. RESULTS: Wave V latency of BAEPs prolonged less in patients with normal hearing outcome (0.44 ± 0.63 msec) than in the patients with temporary or permanent SNHL (1.23 ± 0.56 msec, 1.33 ± 0.33 msec). Wave V amplitude also decreased less in the patients with normal hearing outcome (5.4 ± 15.8%) than in the patients with transient or permanent SNHL (42.8 ± 31.7%, 60.0 ± 34.7%). While sensitivity, specificity and predictability of prolongation of wave V latency at a value of 1.0 msec for SNHL, were 52.5%, 76.4% and 14.7%, respectively, those of decrease in the amplitude of wave V for SNHL at a value of 40% were 35.0%, 93.6% and 29.8%, respectively. CONCLUSIONS: Decrease of the amplitude of wave V seems to have higher specificity, predictability and lower sensitivity for SNHL than the prolongation of wave V latency.
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1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jong Hoon(김종훈)
Bai, Sun Joon(배선준) ORCID logo https://orcid.org/0000-0001-5027-3232
Lee, Jong Seok(이종석) ORCID logo https://orcid.org/0000-0002-7945-2530
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